{"id":8906,"date":"2022-03-10T20:30:43","date_gmt":"2022-03-10T20:30:43","guid":{"rendered":"https:\/\/www.hexorcism.com\/19BP\/sm2334489\/"},"modified":"2022-03-10T20:30:43","modified_gmt":"2022-03-10T20:30:43","slug":"sm2334489","status":"publish","type":"page","link":"https:\/\/www.hexorcism.com\/19BP\/sm2334489\/","title":{"rendered":"DTC P3498:00 OR P349B:00 [PCM (SKYACTIV-G)]"},"content":{"rendered":"
\n

DTC P3498:00 OR P349B:00 [PCM (SKYACTIV-G)]<\/h3>\n<\/div>\n

SM2334489<\/p>\n

<\/p>\n
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id0102t4500400<\/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 \u201cFunction Inspection Using M-MDS\u201d.<\/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

Cylinder deactivation control system:<\/p>\n

\u2022 P3498:00: No.1 cylinder valve is stuck closed<\/div>\n
\u2022 P349B:00: No.4 cylinder valve is stuck closed<\/div>\n<\/th>\n<\/tr>\n<\/thead>\n
\n
Detection condition<\/span><\/div>\n<\/td>\n
\n
Determination conditions<\/div>\n<\/td>\n
\n
\u2022 The crankshaft fluctuation rate exceeds the specified value for every 200 rotations<\/span> of the crankshaft after recovery from cylinder deactivation control.<\/div>\n<\/td>\n<\/tr>\n
\n
Preconditions<\/div>\n<\/td>\n
\n
\u2022 Battery voltage: 9\u201418 V<\/span> *1<\/sup><\/div>\n
\u2022 Engine speed: 500\u20146,500 rpm<\/span> *1<\/sup><\/div>\n
\u2022 Engine coolant temperature: 20 \u00b0C {68 \u00b0F} or more<\/span> *1<\/sup><\/div>\n
\u2022 Fuel-cut control not implemented<\/div>\n
\u2022 Crankshaft installation tolerance learning completed<\/div>\n
\u2022 Engine condition is stabilized (not directly after gear change)<\/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 200 rotations<\/span> of crankshaft (misfire which may damage catalytic converter)<\/div>\n<\/td>\n<\/tr>\n
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Drive cycle<\/div>\n<\/td>\n
\n
\u2022 1<\/div>\n<\/td>\n<\/tr>\n
\n
Self test type<\/div>\n<\/td>\n
\n
\u2022 CMDTC self test<\/div>\n<\/td>\n<\/tr>\n
\n
Sensor used<\/div>\n<\/td>\n
\n
\u2022 CKP sensor<\/div>\n
\u2022 MAF sensor<\/div>\n
\u2022 MAP sensor<\/div>\n<\/td>\n<\/tr>\n
\n
Fail-safe function<\/span><\/div>\n<\/td>\n
\n
\u2022 Limits intake air amount<\/div>\n
\u2022 Implement fuel-cut control (If cylinder is filled with fuel when valve is stuck closed, fuel-cut on No.1 or No.4 cylinder is performed because engine could be damaged at compression stroke).<\/div>\n<\/td>\n<\/tr>\n
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Vehicle status when DTCs are output<\/span><\/div>\n<\/td>\n
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\u2022 Possibility of engine damage occurring.<\/div>\n
\n
\n
\u2015 Pending code is recorded<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Rough idling, poor acceleration, stalling<\/div>\n<\/td>\n<\/tr>\n
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Possible cause<\/span><\/div>\n<\/td>\n
\n
\u2022 Improper operation of ignition system<\/div>\n
\n
\n
\u2015 Spark plug malfunction<\/div>\n
\u2015 Ignition coil related wiring harness or connector malfunction<\/div>\n
\u2015 Ignition coil malfunction<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Fuel injector malfunction<\/div>\n
\n
\n
\u2015 Improper operation of fuel injector<\/div>\n
\u2015 Fuel injector related wiring harness malfunction<\/div>\n<\/dd>\n<\/dl>\n
\u2022 OCV for No.1 cylinder deactivation malfunction<\/div>\n
\n
\n
\u2015 Poor operation of OCV for No.1 cylinder deactivation<\/div>\n
\u2015 Related wiring harness malfunction<\/div>\n<\/dd>\n<\/dl>\n
\u2022 OCV for No.4 cylinder deactivation malfunction<\/div>\n
\n
\n
\u2015 Poor operation of OCV for No.4 cylinder deactivation<\/div>\n
\u2015 Related wiring harness malfunction<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Switchable HLA malfunction<\/div>\n
\u2022 Engine oil solenoid valve malfunction<\/div>\n
\n
\n
\u2015 Poor operation of engine oil solenoid valve<\/div>\n
\u2015 Related wiring harness malfunction<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Erratic signal to PCM<\/div>\n
\n
\n
\u2015 CKP sensor signal malfunction<\/div>\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.1 signal malfunction<\/div>\n
\u2015 APP sensor signal malfunction<\/div>\n
\u2015 TP sensor signal malfunction<\/div>\n
\u2015 VSS signal malfunction<\/div>\n
\u2015 Related connector or terminals malfunction<\/div>\n
\u2015 Related wiring harness malfunction<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Air leakage from intake air system (between intake manifold and cylinder head)<\/div>\n
\u2022 Poor drive belt assembly or adhesion of oil<\/div>\n
\u2022 Decoupling ring tensioner malfunction (With Mazda M Hybrid)<\/div>\n
\u2022 Drive belt auto tensioner malfunction (Without Mazda M Hybrid)<\/div>\n
\u2022 Engine malfunction<\/div>\n
\n
\n
\u2015 Insufficient engine compression<\/div>\n
\u2015 Engine coolant leakage to combustion chamber<\/div>\n
\u2015 Internal engine wear, damage<\/div>\n
\u2015 No.1 or No.4 cylinder intake\/exhaust valve (stuck closed) malfunction<\/div>\n<\/dd>\n<\/dl>\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 crankshaft rotation speed based on the crankshaft position sensor signal. While the engine is running, the crankshaft rotation speed varies slightly by the effect of combustion at each cylinder, however, the rotation speed changes rapidly if a valve is stuck closed after recovery from cylinder deactivation control. (If valve is stuck closed, engine oil and fuel accumulates in cylinder, and by its ignition there, there is possibility of engine damage) The PCM calculates the frequency of changes (fluctuation rate) in rapid rotation speed for every specified number of crankshaft rotations. When the crankshaft fluctuation rate exceeds a certain value after recovery from cylinder deactivation, the PCM determines that No.1 or 4 cylinder valve is stuck and stores a DTC.<\/p>\n

P3498:00<\/p>\n\n\n\n
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<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
am3zzw00033566<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

P349B:00<\/p>\n\n\n\n
\n\n\n\n
<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
am3zzw00033567<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n



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

Repeatability Verification Procedure<\/p>\n

\u2022 Not applicable<\/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
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PIDs<\/p>\n<\/th>\n

\n

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

\n
APP1<\/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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APP2<\/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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IAT<\/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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ENG_RPM<\/div>\n<\/td>\n<\/tr>\n
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TP_RELAT<\/div>\n<\/td>\n<\/tr>\n
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VSS<\/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
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STEP<\/p>\n<\/th>\n

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INSPECTION<\/p>\n<\/th>\n

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RESULTS<\/p>\n<\/th>\n

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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
\n
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 P3498:00 or P349B: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
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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
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\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: 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
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Yes<\/div>\n<\/td>\n
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Repair the malfunctioning location according to the applicable DTC troubleshooting.<\/div>\n
(See DTC TABLE [PCM (SKYACTIV-G (US))]<\/a>.)<\/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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5<\/div>\n<\/td>\n
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PURPOSE: VERIFY IF THERE IS PID ITEM CAUSING DRASTIC CHANGES OF ACCELERATION FLUCTUATION BY INPUT SIGNAL TO PCM<\/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
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\u2015 APP1<\/div>\n
\u2015 APP2<\/div>\n
\u2015 ECT<\/div>\n
\u2015 ECT_VOLT<\/div>\n
\u2015 IAT<\/div>\n
\u2015 MAF<\/div>\n
\u2015 MAP<\/div>\n
\u2015 MAP_VOLT<\/div>\n
\u2015 ENG_RPM<\/div>\n
\u2015 TP_RELAT<\/div>\n
\u2015 VSS<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Is there a PID item affected by acceleration fluctuation?<\/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
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No<\/div>\n<\/td>\n
\n
Go to the next step.<\/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\u20142<\/div>\n
\n
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\u2015 Perform an ignition system parts inspection.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Step 3\u20146<\/div>\n
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\u2015 Perform an engine oil related inspection.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Step 7<\/div>\n
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\u2015 Perform a fuel injector control system inspection.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Step 8\u201414<\/div>\n
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\u2015 Perform an inspection of parts which may be affected by misfire except for ignition-related parts and fuel injection control-related parts.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Repair completion verification<\/div>\n
\n
\n
\u2015 Verify that 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\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 SPARK PLUG FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See SPARK PLUG INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is the part normal?<\/div>\n<\/td>\n
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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 SPARK PLUG REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
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2<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT IGNITION COIL FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See IGNITION COIL 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 IGNITION COIL\/ION SENSOR REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
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3<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT OCV FOR No.1 CYLINDER DEACTIVATION FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See OIL CONTROL VALVE (OCV) FOR CYLINDER DEACTIVATION 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 OIL CONTROL VALVE (OCV) FOR CYLINDER DEACTIVATION REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
4<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT OCV FOR No.4 CYLINDER DEACTIVATION FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See OIL CONTROL VALVE (OCV) FOR CYLINDER DEACTIVATION 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 OIL CONTROL VALVE (OCV) FOR CYLINDER DEACTIVATION REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
5<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT SWITCHABLE HLA FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See HYDRAULIC LASH ADJUSTER (HLA) 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 HYDRAULIC LASH ADJUSTER (HLA) REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
6<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT ENGINE OIL SOLENOID VALVE FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See ENGINE OIL 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 ENGINE OIL SOLENOID VALVE REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
7<\/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
8<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY IF MALFUNCTION RELATED TO INTAKE-AIR SYSTEM IS CAUSE OF VALVE BEING STUCK CLOSED<\/div>\n
\u2022 Visually inspect for loose, cracked or damaged hoses on intake air system.<\/div>\n
\u2022 Is there any malfunction?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and 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
9<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY IF POOR DRIVE BELT ASSEMBLY IS CAUSE OF VALVE BEING STUCK CLOSED<\/div>\n
\u2022 Verify the condition of the drive belt assembly. (See DRIVE BELT INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Is there any malfunction?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Assemble drive belt correctly and perform the repair completion verification.<\/div>\n
(See DRIVE BELT REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/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
10<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY IF FOREIGN MATTER ON DRIVE BELT IS CAUSE OF VALVE BEING STUCK CLOSED<\/div>\n
\u2022 Verify if oil is on the drive belt.<\/div>\n
\u2022 Is there foreign matter on the drive belt?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Remove the foreign matter on the drive belt and perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Vehicles with Mazda M Hybrid:<\/div>\n
\u2022 Go to the next step.<\/div>\n
Vehicles without Mazda M Hybrid:<\/div>\n
\u2022 Go to Step 12.<\/div>\n<\/td>\n<\/tr>\n
\n
11<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT DECOUPLING RING TENSIONER FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part.<\/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<\/td>\n<\/tr>\n
\n
12<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT DRIVE BELT AUTO TENSIONER FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable part. (See DRIVE BELT AUTO TENSIONER 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 DRIVE BELT AUTO TENSIONER REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
13<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY IF MALFUNCTION RELATED TO ENGINE COMPRESSION IS CAUSE OF VALVE BEING STUCK CLOSED<\/div>\n
\u2022 Inspect the engine compression. (See COMPRESSION INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Are compression pressures within specification?<\/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
Replace or overhaul the engine and perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
14<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY IF MALFUNCTION RELATED TO SEALING OF ENGINE UNIT (COMBUSTION CHAMBER AND ENGINE COOLANT PASSAGE) IS CAUSE OF MISFIRE<\/div>\n
\u2022 Perform the \u201cENGINE COOLANT LEAKAGE INSPECTION\u201d. (See ENGINE COOLANT LEAKAGE INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/div>\n
\u2022 Does the radiator cap tester needle drop even though there is no engine coolant leakage from the radiator or the hoses?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Engine coolant leakage from the engine (between the combustion chamber and the engine coolant passage) may have occurred.<\/div>\n
\u2022 Verify the conditions of the gasket and the cylinder head.<\/div>\n
\n
\n
\u2015 If there is any malfunction:<\/div>\n
\n
\n
\u2022 Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n<\/dd>\n<\/dl>\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
15<\/div>\n<\/td>\n
\n
PURPOSE: INSPECT FOR MALFUNCTION DUE TO INTERNAL ENGINE WEAR, DAMAGE<\/div>\n
\u2022 Inspect for the following engine internal parts:<\/div>\n
\n
\n
\u2015 Cylinder<\/div>\n
\u2015 Piston ring<\/div>\n
\u2015 No.1 or No.4 cylinder intake\/exhaust valve (stuck closed)<\/div>\n
\u2015 Such as cylinder head gasket<\/div>\n<\/dd>\n<\/dl>\n
\u2022 Are all items normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Engine internal parts are normal.<\/div>\n
\u2022 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<\/td>\n<\/tr>\n
\n
Repair completion verification 1<\/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 Start the engine and warm it up completely.<\/p>\n
\n
\n
Warning<\/div>\n<\/dd>\n
\n
\n
\u2022 While performing this step, always operate the vehicle in a safe and lawful manner.<\/div>\n
\u2022 When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID\/DATA MONITOR AND RECORD capturing function and inspect later.<\/div>\n<\/div>\n<\/dd>\n<\/dl>\n<\/div>\n
\u2015 Drive the vehicle under the snapshot data condition.<\/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, then go to the next step. (See PCM REMOVAL\/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))]<\/a>.)<\/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
Repair completion verification 2<\/div>\n<\/td>\n
\n
PURPOSE: VERIFY IF OTHER DTCs DISPLAYED<\/div>\n
\u2022 Perform the DTC inspection. (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<\/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 P3498:00 OR P349B:00 [PCM (SKYACTIV-G)] SM2334489 id0102t4500400 Note \u2022 To determine the malfunctioning part, proceed with the diagnostics from \u201cFunction Inspection Using M-MDS\u201d. Details On DTCs Description Cylinder deactivation control system: \u2022 P3498:00: No.1 cylinder valve is stuck closed \u2022 P349B:00: No.4 cylinder valve is stuck closed Detection condition Determination conditions \u2022 The crankshaft fluctuation rate exceeds the specified value for every 200 rotations of the crankshaft after recovery from cylinder deactivation control. Preconditions […]<\/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-8906","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages\/8906","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=8906"}],"version-history":[{"count":0,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages\/8906\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/media?parent=8906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}