{"id":8975,"date":"2022-03-10T20:30:44","date_gmt":"2022-03-10T20:30:44","guid":{"rendered":"https:\/\/www.hexorcism.com\/19BP\/sm2334594\/"},"modified":"2022-03-10T20:30:44","modified_gmt":"2022-03-10T20:30:44","slug":"sm2334594","status":"publish","type":"page","link":"https:\/\/www.hexorcism.com\/19BP\/sm2334594\/","title":{"rendered":"DTC P0172:00 [PCM (SKYACTIV-G (WITH CYLINDER DEACTIVATION))]"},"content":{"rendered":"
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DTC P0172:00 [PCM (SKYACTIV-G (WITH CYLINDER DEACTIVATION))]<\/h3>\n<\/div>\n

SM2334594<\/p>\n

<\/p>\n
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id0102t49343t6<\/p>\n

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Note<\/div>\n<\/dd>\n
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\u2022 To determine the malfunctioning part, proceed with the diagnostics from “Function Inspection Using M-MDS”.<\/div>\n<\/dd>\n<\/dl>\n



\n<\/a><\/p>\n

Details On DTCs<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
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Description<\/p>\n<\/th>\n

\n

Fuel trim system too rich<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n

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Detection condition<\/span><\/div>\n<\/td>\n
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Determination conditions<\/div>\n<\/td>\n
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\u2022 Any one of the following conditions is met:<\/div>\n
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\n
\u2015 The sum of the fuel feedback correction amount (SHRT_FUEL_TRIM) and the fuel learning correction amount (LONG_FUEL_TRIM) is the specified value ( \u221231 %<\/span>) or less, and 10 s or more<\/span> have elapsed with the fuel learning correction amount (LONG_FUEL_TRIM) at the specified value ( \u221215 %<\/span>) or less.<\/div>\n
\u2015 While the engine is idling or the vehicle is driven, the fuel feedback correction amount reaches the lower limit ( \u221225 % or less<\/span>) for 20 s or more<\/span>.<\/div>\n<\/dd>\n<\/dl>\n<\/td>\n<\/tr>\n
\n
Preconditions<\/div>\n<\/td>\n
\n
\u2022 Engine coolant temperature: 0\u201445 \u00b0C {32\u2014113 \u00b0F}<\/span>, 60 \u00b0C {140 \u00b0F} or more<\/span> *1<\/sup><\/div>\n
*1<\/sup>: Standard can be verified by displaying PIDs using M-MDS<\/div>\n<\/td>\n<\/tr>\n
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Malfunction determination period<\/div>\n<\/td>\n
\n
\u2022 10 s<\/span> or 20 s<\/span> period<\/div>\n<\/td>\n<\/tr>\n
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Drive cycle<\/div>\n<\/td>\n
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\u2022 2<\/div>\n<\/td>\n<\/tr>\n
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Self test type<\/div>\n<\/td>\n
\n
\u2022 CMDTC self test<\/div>\n<\/td>\n<\/tr>\n
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Sensor used<\/div>\n<\/td>\n
\n
\u2022 A\/F sensor<\/div>\n<\/td>\n<\/tr>\n
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Fail-safe function<\/span><\/div>\n<\/td>\n
\n
\u2022 Not applicable<\/div>\n<\/td>\n<\/tr>\n
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Vehicle status when DTCs are output<\/span><\/div>\n<\/td>\n
\n
\u2022 Not applicable<\/div>\n<\/td>\n<\/tr>\n
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Possible cause<\/span><\/div>\n<\/td>\n
\n
\u2022 Erratic signal to PCM<\/div>\n
\n
\n
\u2015 ECT sensor No.1 signal malfunction<\/div>\n
\u2015 MAF sensor signal malfunction<\/div>\n
\u2015 MAP sensor signal malfunction<\/div>\n
\u2015 IAT sensor No.2 signal malfunction<\/div>\n
\u2015 Related connector or terminals malfunction<\/div>\n
\u2015 Related wiring harness malfunction<\/div>\n<\/dd>\n<\/dl>\n
\u2022 High-pressure side fuel delivery system malfunction<\/div>\n
\n
\n
\u2015 Fuel pressure sensor malfunction<\/div>\n
\u2015 Relief valve (built-into high pressure fuel pump) malfunction<\/div>\n
\u2015 Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system)<\/div>\n
\u2015 Spill valve control solenoid valve malfunction (built-into high pressure fuel pump)<\/div>\n
\u2015 High pressure fuel pump malfunction<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Low-pressure side fuel delivery system malfunction<\/div>\n
\n
\n
\u2015 Fuel filter clogged (built-into fuel pump unit)<\/div>\n
\u2015 Low pressure side fuel line restriction (between fuel pump unit and high pressure fuel pump)<\/div>\n
\u2015 Fuel pump unit malfunction<\/div>\n
\u2015 Pressure regulator (built-into fuel pump unit) malfunction<\/div>\n
\u2015 Fuel pump control module malfunction<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Fuel injector malfunction<\/div>\n
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\n
\u2015 Improper operation of fuel injector<\/div>\n
\u2015 Fuel injector related wiring harness malfunction<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Improper operation of purge control system<\/div>\n
\n
\n
\u2015 Purge solenoid valve malfunction<\/div>\n
\u2015 Purge solenoid hoses improper connection<\/div>\n<\/dd>\n<\/dl>\n
\u2022 MAF sensor malfunction<\/div>\n
\u2022 MAP sensor malfunction<\/div>\n
\u2022 Improper operation of electric variable valve timing control system<\/div>\n
\n
\n
\u2015 Electric variable valve timing driver malfunction<\/div>\n
\u2015 Electric variable valve timing motor malfunction<\/div>\n
\u2015 Electric variable valve timing actuator malfunction<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Improper operation of hydraulic variable valve timing control system<\/div>\n
\u2022 A\/F sensor malfunction<\/div>\n
\n
\n
\u2015 A\/F sensor loose<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Penetration of fuel into engine oil (excessive dilution)<\/div>\n
\u2022 PCM malfunction<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n



\n<\/a><\/p>\n

System Wiring Diagram<\/p>\n

\u2022 Not applicable<\/div>\n



\n<\/a><\/p>\n

Function Explanation (DTC Detection Outline)<\/p>\n

\u2022 The PCM detects the oxygen concentration in the exhaust gas from the A\/F sensor signal and performs fuel injection amount feedback to maintain the optimum air\/fuel ratio. If a condition in which the feedback correction amount is small (fuel injection amount being decreased) continues for the specified time, a feedback correction amount malfunction is determined, and a DTC is stored. The feedback correction amount has a \u201cFuel feedback correction amount\u201d for the air\/fuel ratio and a \u201cFuel learning correction amount\u201d for fuel injector deterioration over time.<\/div>\n
\u2022 \u201cFuel feedback correction amount (SHRT_FUEL_TRIM)\u201d and \u201cFuel learning correction amount (LONG_FUEL_TRIM)\u201d can be verified from the M-MDS PID item.<\/div>\n
1. The sum of the fuel feedback correction amount (SHRT_FUEL_TRIM) and the fuel learning correction amount (LONG_FUEL_TRIM) is the specified value ( \u221231 %<\/span>) or less, and 10 s or more<\/span> have elapsed with the fuel learning correction amount (LONG_FUEL_TRIM) at the specified value ( \u221215 %<\/span>) or less. Engine coolant temperature: 0\u201445 \u00b0C {32\u2014113 \u00b0F}<\/span>, 60 \u00b0C {140 \u00b0F} or more<\/span><\/p>\n\n\n\n
\n\n\n\n
<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
am3zzw00034722<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
2. The fuel feedback correction amount reaches the lower limit ( \u221225% or less<\/span>) for 20 s or more<\/span>. Engine coolant temperature: 0\u201445 \u00b0C {32\u2014113 \u00b0F}<\/span>, 60 \u00b0C {140 \u00b0F} or more<\/span><\/p>\n\n\n\n
\n\n\n\n
<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
am3zzw00033955<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n



\n<\/a><\/p>\n

Repeatability Verification Procedure<\/p>\n

1. Warm up the engine to allow the engine coolant temperature to reach 80 \u00b0C {176 \u00b0F} or more<\/span>.<\/div>\n
2. Start the engine and leave it idling for 1 min<\/span>.<\/p>\n
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\n
Note<\/div>\n<\/dd>\n
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\u2022 Match the engine coolant temperature in the recorded freeze frame data\/snapshot data, the vehicle speed, and engine speed values to the best extent possible while driving the vehicle.<\/div>\n<\/dd>\n<\/dl>\n<\/div>\n
3. Try to reproduce the malfunction by driving the vehicle for 5 min<\/span> based on the values in the freeze frame data\/snapshot data.<\/div>\n



\n<\/a><\/p>\n

PID Item\/Simulation Item Used In Diagnosis<\/p>\n

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PID\/DATA monitor item table<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
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PIDs<\/p>\n<\/th>\n

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Reference<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n

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APP_RELAT<\/div>\n<\/td>\n
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(See PID\/DATA MONITOR TABLE [PCM (SKYACTIV-G (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
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ECT<\/div>\n<\/td>\n<\/tr>\n
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ECT_VOLT<\/div>\n<\/td>\n<\/tr>\n
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PRG_DUTY<\/div>\n<\/td>\n<\/tr>\n
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FDIL_JD<\/div>\n<\/td>\n<\/tr>\n
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FUEL_PUMP_REQ<\/div>\n<\/td>\n<\/tr>\n
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FUEL_PRES<\/div>\n<\/td>\n<\/tr>\n
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IAT2<\/div>\n<\/td>\n<\/tr>\n
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MAF<\/div>\n<\/td>\n<\/tr>\n
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MAP<\/div>\n<\/td>\n<\/tr>\n
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MAP_VOLT<\/div>\n<\/td>\n<\/tr>\n
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A\/F_SEN_CUR<\/div>\n<\/td>\n<\/tr>\n
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TP_RELAT<\/div>\n<\/td>\n<\/tr>\n
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VLV_TIMING_ACT_EX<\/div>\n<\/td>\n<\/tr>\n
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VLV_TIMING_DSD_EX<\/div>\n<\/td>\n<\/tr>\n
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VLV_TIMING_ACT_IN<\/div>\n<\/td>\n<\/tr>\n
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VLV_TIMING_DSD_IN<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Simulation item table<\/p>\n\n\n\n\n\n\n
\n

Simulation items<\/p>\n<\/th>\n

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Reference<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n

\n
FUEL_PUMP_REQ<\/div>\n<\/td>\n
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(See SIMULATION TABLE [PCM (SKYACTIV-G (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
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INJ<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n



\n<\/a><\/p>\n

Function Inspection Using M-MDS<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Step<\/p>\n<\/th>\n

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Inspection<\/p>\n<\/th>\n

\n

Results<\/p>\n<\/th>\n

\n

Action<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n

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1<\/div>\n<\/td>\n
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PURPOSE: VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY<\/div>\n
\u2022 Verify related Service Bulletins, on-line repair information, or Service Information availability.<\/div>\n
\u2022 Is any related Information available?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Perform repair or diagnosis according to the available information.<\/div>\n
\u2022 If the vehicle is not repaired, go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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No<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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2<\/div>\n<\/td>\n
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PURPOSE: IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA<\/div>\n
\u2022 Is the DTC P0172:00 on freeze frame data?<\/div>\n<\/td>\n
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Yes<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to the troubleshooting procedure for DTC on freeze frame data.<\/div>\n
(See DTC TABLE [PCM (SKYACTIV-G (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
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3<\/div>\n<\/td>\n
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PURPOSE: RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION<\/div>\n
\u2022 Record the freeze frame data\/snapshot data.<\/p>\n
\n
\n
Note<\/div>\n<\/dd>\n
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\u2022 Recording can be facilitated using the screen capture function of the PC.<\/div>\n<\/dd>\n<\/dl>\n<\/div>\n<\/td>\n
\n
\u2014<\/div>\n<\/td>\n
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Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
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4<\/div>\n<\/td>\n
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PURPOSE: VERIFY IF INPUT SIGNAL TO PCM AFFECTS FUEL INJECTION<\/div>\n
\u2022 Start the engine.<\/div>\n
\u2022 Access the following PIDs using the M-MDS: (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\n
\n
\u2015 ECT<\/div>\n
\u2015 ECT_VOLT<\/div>\n
\u2015 APP_RELAT<\/div>\n
\u2015 TP_RELAT<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Is there any signal that is far out of specification? (See PID\/DATA MONITOR TABLE [PCM (SKYACTIV-G (US))]<\/a>.)<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Inspect the suspected sensor and related wiring harness.<\/div>\n
\u2022 If there is any malfunction:<\/div>\n
\n
\n
\u2015 Repair or replace the malfunctioning part.<\/div>\n
\u2015 Go to Troubleshooting Diagnostic Procedure to perform the repair completion verification.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 If there is no malfunction:<\/div>\n
\n
\n
\u2015 Go to the next step.<\/div>\n<\/dd>\n<\/dl>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
5<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY CONNECTOR CONNECTIONS<\/div>\n
\u2022 Start the engine.<\/div>\n
\u2022 Access the following PIDs using the M-MDS: (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\n
\n
\u2015 FUEL_PRES<\/div>\n
\u2015 FUEL_PUMP_REQ<\/div>\n
\u2015 PRG_DUTY<\/div>\n
\u2015 MAF<\/div>\n
\u2015 MAP<\/div>\n
\u2015 MAP_VOLT<\/div>\n
\u2015 IAT2<\/div>\n
\u2015 VLV_TIMING_ACT_EX<\/div>\n
\u2015 VLV_TIMING_ACT_IN<\/div>\n<\/dd>\n<\/dl>\n
\u2022 When the following parts are shaken, does the PID value include a PID item which has changed?<\/div>\n
\n
\n
\u2015 Fuel pressure sensor<\/div>\n
\u2015 Fuel pump control module<\/div>\n
\u2015 Purge solenoid valve<\/div>\n
\u2015 MAF sensor<\/div>\n
\u2015 MAP sensor\/IAT sensor No.2<\/div>\n
\u2015 OCV for hydraulic variable valve timing system<\/div>\n
\u2015 Electric variable valve timing motor\/driver<\/div>\n
\u2015 PCM<\/div>\n<\/dd>\n<\/dl>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Repair or replace the applicable connector parts.<\/div>\n
Go to Troubleshooting Diagnostic Procedure to perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
6<\/div>\n<\/td>\n
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PURPOSE: VERIFY FUEL PRESSURE (HIGH-SIDE) MALFUNCTION<\/div>\n
\u2022 Switch the ignition off.<\/div>\n
\u2022 Reconnect all disconnected connectors.<\/div>\n
\u2022 Start the engine and warm it up completely.<\/div>\n
\u2022 Access the FUEL_PRES PID using the M-MDS. (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\u2022 Is the FUEL_PRES PID value approx. 10 MPa {102 kgf\/cm2<\/sup>, 1450 psi}<\/span>?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
FUEL_PRES PID value is lower than 10 MPa {102 kgf\/cm2<\/sup>, 1450 psi}<\/span>:<\/div>\n
\u2022 Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.<\/div>\n
FUEL_PRES PID value is higher than 10 MPa {102 kgf\/cm2<\/sup>, 1450 psi}<\/span>:<\/div>\n
\u2022 Go to Step 8.<\/div>\n<\/td>\n<\/tr>\n
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7<\/div>\n<\/td>\n
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PURPOSE: VERIFY FUEL PRESSURE (LOW-SIDE) MALFUNCTION<\/div>\n
\n
\n
Note<\/div>\n<\/dd>\n
\n
\u2022 Verify the fuel pressure on the low pressure side with the operation of the high pressure fuel pump turned off.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Bleed the remaining pressure in the fuel line using the following procedure.<\/div>\n
\n
\n
1. Switch the ignition off.<\/div>\n
2. Disconnect the high pressure fuel pump connector.<\/div>\n
3. Remove the fuel pump relay. (See RELAY LOCATION [(US)]<\/a>.)<\/div>\n
4. Start the engine and wait until the engine stalls.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Switch the ignition off.<\/div>\n
\u2022 Install the fuel pump relay.<\/div>\n
\u2022 Switch the ignition ON (engine off).<\/div>\n
\u2022 Display PID FUEL_PRES and simulation item FUEL_PUMP_REQ using the M-MDS. (See PID\/DATA MONITOR INSPECTION<\/a>.) (See SIMULATION INSPECTION<\/a>.)<\/div>\n
\u2022 Turn simulation item FUEL_PUMP_REQ on.<\/div>\n
\u2022 Is the FUEL_PRES PID value 475\u2014555 kPa {4.85\u20145.65 kgf\/cm2<\/sup>, 68.9\u201480.4 psi}<\/span>?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.<\/div>\n<\/td>\n<\/tr>\n
\n
8<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY IF MALFUNCTION CAUSED BY FUEL INJECTOR IMPROPER OPERATION<\/div>\n
\u2022 Switch the ignition off.<\/div>\n
\u2022 Reconnect all disconnected connectors.<\/div>\n
\u2022 Start the engine and idle it.<\/div>\n
\u2022 Access the following simulation items using the M-MDS: (See SIMULATION INSPECTION<\/a>.)<\/div>\n
\n
\n
\u2015 INJ<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Turn each fuel injector from on to off using the simulation items.<\/div>\n
\u2022 Does the vibration during idling worsen?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 3.<\/div>\n<\/td>\n<\/tr>\n
\n
9<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY IF MALFUNCTION CAUSED BY PURGE SOLENOID VALVE IMPROPER OPERATION<\/div>\n
\u2022 Start the engine and idle it.<\/div>\n
\u2022 Access the PRG_DUTY PID using the M-MDS. (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\u2022 Is the PRG_DUTY PID value normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 4.<\/div>\n<\/td>\n<\/tr>\n
\n
10<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY MAF SENSOR<\/div>\n
\u2022 Start the engine and idle it.<\/div>\n
\u2022 Access the MAF PID using the M-MDS. (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\u2022 Is the MAF PID value normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 5.<\/div>\n<\/td>\n<\/tr>\n
\n
11<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY MAP SENSOR<\/div>\n
\u2022 Start the engine and idle it.<\/div>\n
\u2022 Access the following PIDs using the M-MDS: (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\n
\n
\u2015 MAP<\/div>\n
\u2015 MAP_VOLT<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Are all items normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 7.<\/div>\n<\/td>\n<\/tr>\n
\n
12<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY INTAKE VALVE TIMING<\/div>\n
\u2022 Start the engine and idle it.<\/div>\n
\u2022 Access the following PIDs using the M-MDS: (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\n
\n
\u2015 VLV_TIMING_ACT_IN<\/div>\n
\u2015 VLV_TIMING_DSD_IN<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Depress the accelerator pedal to increase the engine speed.<\/div>\n
\u2022 Does the monitor value of the PID item VLV_TIMING_ACT_IN conform to the VLV_TIMING_DSD_IN PID value?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 8.<\/div>\n<\/td>\n<\/tr>\n
\n
13<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY EXHAUST VALVE TIMING<\/div>\n
\u2022 Start the engine and idle it.<\/div>\n
\u2022 Access the following PIDs using the M-MDS: (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\n
\n
\u2015 VLV_TIMING_ACT_EX<\/div>\n
\u2015 VLV_TIMING_DSD_EX<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Perform the following:<\/div>\n
\n
\n
1. Warm up the engine to allow the engine coolant temperature to reach 80 \u00b0C {176 \u00b0F} or more<\/span>.<\/div>\n
2. Shift to 2nd gear (MTX)\/D position (ATX) and rapidly accelerate the vehicle to 50 km\/h {31 mph}<\/span> (to operate hydraulic variable valve timing control).<\/div>\n
3. Decelerate to idling.<\/div>\n
4. Shift to 2nd gear (MTX)\/D position (ATX) and rapidly accelerate the vehicle to 50 km\/h {31 mph}<\/span> again.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Does the monitor value of the PID item VLV_TIMING_ACT_EX conform to the VLV_TIMING_DSD_EX PID value?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 11.<\/div>\n<\/td>\n<\/tr>\n
\n
14<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY A\/F SENSOR<\/div>\n
\u2022 Access the A\/F_SEN_CUR PID using the M-MDS. (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\u2022 Is the A\/F_SEN_CUR PID value normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 12.<\/div>\n<\/td>\n<\/tr>\n
\n
15<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY IF MALFUNCTION IS CAUSED BY FUEL PENETRATION INTO ENGINE OIL<\/div>\n
\u2022 Access the FDIL_JD PID using the M-MDS. (See PID\/DATA MONITOR INSPECTION<\/a>.)<\/div>\n
\u2022 Is the engine oil diluted due to fuel penetration?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Replace the engine oil with genuine motor oil.<\/div>\n
(See ENGINE OIL REPLACEMENT [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
Go to Troubleshooting Diagnostic Procedure to perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
16<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT FOR OTHER RELATED DTCs<\/div>\n
\u2022 Perform the DTC inspection for the PCM. (See DTC INSPECTION<\/a>.)<\/div>\n
\u2022 Are any other DTCs displayed?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Repair the malfunctioning location according to the applicable DTC troubleshooting.<\/div>\n
(See DTC TABLE [PCM (SKYACTIV-G (US))]<\/a>.)<\/div>\n
Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n



\n<\/a><\/p>\n

Troubleshooting Diagnostic Procedure<\/p>\n

Intention of troubleshooting procedure<\/div>\n
\u2022 Step 1\u20143<\/div>\n
\n
\n
\u2015 Perform a fuel injector control system inspection.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Step 4<\/div>\n
\n
\n
\u2015 Perform an emission system parts inspection.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Step 5\u20147<\/div>\n
\n
\n
\u2015 Perform an intake air system parts inspection.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Step 8\u201411<\/div>\n
\n
\n
\u2015 Perform a valve timing inspection.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Step 12<\/div>\n
\n
\n
\u2015 Perform an exhaust system parts inspection.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Repair completion verification<\/div>\n
\n
\n
\u2015 Verify that the primary malfunction is resolved and there are no other malfunctions.<\/div>\n<\/dd>\n<\/dl>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Step<\/p>\n<\/th>\n

\n

Inspection<\/p>\n<\/th>\n

\n

Results<\/p>\n<\/th>\n

\n

Action<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n

\n
1<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT FUEL PUMP CONTROL MODULE FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See FUEL PUMP CONTROL MODULE INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the part normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n
(See FUEL PUMP CONTROL MODULE REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
2<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT FUEL PUMP UNIT FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See FUEL PUMP UNIT INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the part normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n
(See FUEL PUMP UNIT REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
3<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT FUEL INJECTOR FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See FUEL INJECTOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the part normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n
(See FUEL INJECTOR REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
4<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT PURGE SOLENOID VALVE FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See PURGE SOLENOID VALVE INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the part normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n
(See PURGE SOLENOID VALVE REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
5<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT MAF SENSOR FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See MASS AIR FLOW (MAF) SENSOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the part normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n
(See MASS AIR FLOW (MAF) SENSOR\/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
6<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT AIR CLEANER ELEMENT FOR MALFUNCTION<\/div>\n
\u2022 Remove the air cleaner element with the engine is running. (See AIR CLEANER ELEMENT REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Does the engine speed increase?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Inspect the air cleaner element.<\/div>\n
(See AIR CLEANER ELEMENT INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 If there is any malfunction:<\/div>\n
\n
\n
\u2015 Clean or replace the air cleaner element and perform the repair completion verification. (See AIR CLEANER ELEMENT REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/dd>\n<\/dl>\n
\u2022 If there is no malfunction:<\/div>\n
\n
\n
\u2015 Go to the next step.<\/div>\n<\/dd>\n<\/dl>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
7<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT MAP SENSOR FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the part normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n
(See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR\/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.2 REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
8<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT ELECTRIC VARIABLE VALVE TIMING DRIVER FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See ELECTRIC VARIABLE VALVE TIMING MOTOR\/DRIVER INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the part normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n
(See ELECTRIC VARIABLE VALVE TIMING MOTOR\/DRIVER REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
9<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT ELECTRIC VARIABLE VALVE TIMING MOTOR FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See ELECTRIC VARIABLE VALVE TIMING MOTOR\/DRIVER INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the part normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n
(See ELECTRIC VARIABLE VALVE TIMING MOTOR\/DRIVER REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
10<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT ELECTRIC VARIABLE VALVE TIMING ACTUATOR FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See ELECTRIC VARIABLE VALVE TIMING ACTUATOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the part normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n
(See ELECTRIC VARIABLE VALVE TIMING ACTUATOR, HYDRAULIC VARIABLE VALVE TIMING ACTUATOR REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
11<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT OCV FOR HYDRAULIC VARIABLE VALVE TIMING SYSTEM FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See OCV FOR HYDRAULIC VARIABLE VALVE TIMING SYSTEM INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the part normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n
(See OCV FOR HYDRAULIC VARIABLE VALVE TIMING SYSTEM REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
12<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT A\/F SENSOR FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See AIR FUEL RATIO (A\/F) SENSOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the part normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n
(See AIR FUEL RATIO (A\/F) SENSOR REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
Repair completion verification<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY THAT VEHICLE IS REPAIRED<\/div>\n
\u2022 Install\/connect the part removed\/disconnected during the troubleshooting procedure.<\/div>\n
\u2022 Clear the DTC recorded in the memory. (See CLEARING DTC<\/a>.)<\/div>\n
\u2022 Replicate the vehicle conditions at the time the DTC was detected using the following procedure.<\/div>\n
\n
\n
\u2015 Implement the repeatability verification procedure. (See Repeatability Verification Procedure<\/a>.)<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Perform the DTC inspection for the PCM. (See DTC INSPECTION<\/a>.)<\/div>\n
\u2022 Is the same Pending DTC present?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.<\/div>\n
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(US)]<\/a>.)<\/div>\n
If the CAN communication is normal, perform the diagnosis from Step 1.<\/div>\n
\u2022 If the malfunction recurs, replace the PCM. (See PCM REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
DTC troubleshooting completed.<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/div>\n
<\/div>\n
<\/div>\n

<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

DTC P0172:00 [PCM (SKYACTIV-G (WITH CYLINDER DEACTIVATION))] SM2334594 id0102t49343t6 Note \u2022 To determine the malfunctioning part, proceed with the diagnostics from “Function Inspection Using M-MDS”. Details On DTCs Description Fuel trim system too rich Detection condition Determination conditions \u2022 Any one of the following conditions is met: \u2015 The sum of the fuel feedback correction amount (SHRT_FUEL_TRIM) and the fuel learning correction amount (LONG_FUEL_TRIM) is the specified value ( \u221231 %) or less, and 10 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-8975","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages\/8975","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/comments?post=8975"}],"version-history":[{"count":0,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages\/8975\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/media?parent=8975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}