DTC P2096:00 OR P2097:00 [PCM (SKYACTIV-G)]
DTC P2096:00 OR P2097:00 [PCM (SKYACTIV-G)]
SM2334488
id0102t4500300
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Note
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• To determine the malfunctioning part, proceed with the diagnostics from “Function Inspection Using M-MDS”.
Details On DTCs
Description |
HO2S fuel injection control system: • P2096:00: Air fuel too lean
• P2097:00: Air fuel too rich
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Detection condition
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Determination conditions
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• P2096:00: Depending on the correction deviation of the A/F sensor, a condition in which the fuel feedback correction amount (SHRT_FUEL_TRIM_HO2S_SEN) for the HO2S is the specified value ( 2 %) or more and the sum (SHRT_FUEL_TRIM_HO2S_SEN+LONG_FUEL_TRIM_HO2S_SEN) of the fuel feedback correction amount and the fuel learning correction amount is the specified value ( 2.2 %) or more continues for a period of 25 s.
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• P2097:00: Depending on the correction deviation of the A/F sensor, a condition in which the fuel feedback correction amount (SHRT_FUEL_TRIM_HO2S_SEN) for the HO2S is the specified value ( −2 %) or less and the sum (SHRT_FUEL_TRIM_HO2S_SEN+LONG_FUEL_TRIM_HO2S_SEN) of the fuel feedback correction amount and the fuel learning correction amount is the specified value ( −2.2 %) or less continues for a period of 25 s.
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Preconditions
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• HO2S estimated temperature: above 450 °C {842 °F}
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Malfunction determination period
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• 25 s period
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Drive cycle
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• 2
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Self test type
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• CMDTC self test
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Sensor used
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• HO2S
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Fail-safe function
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• Not applicable
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Vehicle status when DTCs are output
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• Not applicable
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Possible cause
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• Erratic signal to PCM
• Improper operation of electric variable valve timing control system
• Improper operation of hydraulic variable valve timing control system
• Air suction in intake air system
• Poor fuel quality
• HO2S malfunction
• A/F sensor malfunction
• Fuel injector malfunction
• Improper operation of purge control system
• Fuel leakage or restriction in fuel line
• MAP sensor malfunction
• MAF sensor malfunction
• Air cleaner element restricted
• PCM malfunction
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System Wiring Diagram
Function Explanation (DTC Detection Outline)
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Repeatability Verification Procedure
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Note
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• 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.
PID Item/Simulation Item Used In Diagnosis
PID/DATA monitor item table
PIDs |
Reference |
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EQUIVALENCE_RATIO_COMD
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A/F_SEN_CUR
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HO2S_OUT_VOLT
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Simulation item table
Simulation items |
Reference |
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PRG_DUTY
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INJ
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Function Inspection Using M-MDS
Step |
Inspection |
Results |
Action |
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1
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PURPOSE: VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY
• Verify related Service Bulletins, on-line repair information, or Service Information availability.
• Is any related Information available?
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Yes
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Perform repair or diagnosis according to the available information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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2
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PURPOSE: IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
• Is the DTC P2096:00 or P2097:00 on freeze frame data?
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Yes
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Go to the next step.
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No
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Go to the troubleshooting procedure for DTC on freeze frame data.
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3
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PURPOSE: RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
• Record the freeze frame data/snapshot data.
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—
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Go to the next step.
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4
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PURPOSE: VERIFICATION IF MALFUNCTION CAUSED BY LACK OF FUEL
• Verify the snapshot data FLI. (See SNAPSHOT DATA TABLE [PCM (SKYACTIV-G)].)
• Is the snapshot data FLI 5% or less?
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Yes
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Refill the fuel.
Go to Troubleshooting Diagnostic Procedure to perform the repair completion verification.
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No
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Go to the next step.
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5
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PURPOSE: VERIFY DTCs FOR FUEL PRESSURE SENSOR
• Perform the DTC inspection for the PCM. (See DTC INSPECTION.)
• Are any of the following DTCs displayed?
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Yes
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Repair the malfunctioning location according to the applicable DTC troubleshooting.
Go to the next step.
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No
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Go to the next step.
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6
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PURPOSE: VERIFY DTCs FOR ELECTRIC VARIABLE VALVE TIMING CONTROL SYSTEM AND HYDRAULIC VARIABLE VALVE TIMING
• Perform the DTC inspection for the PCM. (See DTC INSPECTION.)
• Are any of the following DTCs displayed?
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Yes
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Repair the malfunctioning location according to the applicable DTC troubleshooting.
Go to the next step.
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No
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Go to the next step.
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7
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PURPOSE: VERIFY DTCs FOR MISFIRE
• Perform the DTC inspection for the PCM. (See DTC INSPECTION.)
• Are any of the following DTCs displayed?
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Yes
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Repair the malfunctioning location according to the applicable DTC troubleshooting.
Go to the next step.
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No
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Go to the next step.
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8
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PURPOSE: VERIFY A/F SENSOR AND HO2S INPUT SIGNAL
• Start the engine and warm it up completely.
• Access the following PIDs using the M-MDS: (See PID/DATA MONITOR INSPECTION.)
• Drive the vehicle under the following conditions.
• Is the displayed PID value as follows?
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Yes
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Go to Step 10.
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No
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Go to the next step.
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9
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PURPOSE: INSPECT RELATED SENSOR WIRING HARNESS AND CONNECTOR
• Access the following PIDs using the M-MDS: (See PID/DATA MONITOR INSPECTION.)
• When the PCM, A/F sensor and HO2S are shaken, does the PID value include a PID item which has changed?
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Yes
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Inspect the related wiring harness and connector.
• Repair or replace the malfunctioning location.
Go to Troubleshooting Diagnostic Procedure to perform the repair completion verification.
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No
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Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
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10
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PURPOSE: VERIFY IF MALFUNCTION CAUSED BY FUEL INJECTOR IMPROPER OPERATION
• Start the engine and idle it.
• Access the following simulation items using the M-MDS: (See SIMULATION INSPECTION.)
• Using the simulation function, can the change in engine speed be verified when operation of each of the fuel injectors is stopped?
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Yes
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Go to the next step.
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No
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Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 3.
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11
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PURPOSE: VERIFY IF MALFUNCTION CAUSED BY PURGE SOLENOID VALVE IMPROPER OPERATION
• Start the engine and idle it.
• Access the EQUIVALENCE_RATIO_COMD PID and simulation item PRG_DUTY using the M-MDS. (See PID/DATA MONITOR INSPECTION.) (See SIMULATION INSPECTION.)
• Using the simulation function, does the EQUIVALENCE_RATIO_COMD PID value change when the purge solenoid valve is opened/closed?
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Yes
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Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 5.
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No
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Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 4.
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Troubleshooting Diagnostic Procedure
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― Perform inspection of HO2S and A/F sensor signal related parts.
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― Perform a fuel injector control system inspection.
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― Perform a purge control system inspection.
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― Perform inspection of fuel line.
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― Perform inspection of each separate part.
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― Verify that the primary malfunction is resolved and there are no other malfunctions.
Step |
Inspection |
Results |
Action |
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1
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PURPOSE: VERIFY IF HO2S IS INSTALLED CORRECTLY
• Verify the HO2S installation condition. (See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].) (See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is the installation condition normal?
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Yes
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Go to the next step.
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No
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Correctly install the HO2S and perform the repair completion verification.
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2
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PURPOSE: VERIFY IF A/F SENSOR IS INSTALLED CORRECTLY
• Verify the A/F sensor installation condition. (See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].) (See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is the installation condition normal?
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Yes
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Replace the A/F sensor and/or HO2S and perform the repair completion verification.
(See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].)
(See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
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No
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Correctly install the A/F sensor and perform the repair completion verification.
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3
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PURPOSE: INSPECT FUEL INJECTOR OPERATION
• In Step 10 of the function inspection using the M-MDS, perform a fail-safe injector operation inspection on the cylinders in which engine speed fluctuation could not be verified. (See FUEL INJECTOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].) (See FUEL INJECTOR INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is there any malfunction?
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Yes
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Repair or replace the malfunctioning location and perform the repair completion verification.
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No
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Go to the next step.
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4
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PURPOSE: INSPECT PURGE SOLENOID VALVE FOR MALFUNCTION
• Inspect the applicable part. (See PURGE SOLENOID VALVE INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].) (See PURGE SOLENOID VALVE INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is the part normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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5
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PURPOSE: VERIFY IF MALFUNCTION RELATED TO FUEL LEAK FROM FUEL SYSTEM AFFECTS DIAGNOSTIC RESULTS
• Visually inspect for leakage from fuel line between fuel distributor and fuel pump.
• Is there any leakage?
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Yes
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Repair or replace the malfunctioning location and perform the repair completion verification.
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No
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Go to the next step.
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6
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PURPOSE: INSPECT FUEL LINE (LOW-SIDE)
• Inspect for leakage or restriction in the fuel line (low-side).
• Is there any malfunction?
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Yes
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Repair or replace the malfunctioning location and perform the repair completion verification.
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No
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Go to the next step.
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7
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PURPOSE: VERIFY IF HO2S IS INSTALLED CORRECTLY
• Verify the HO2S installation condition. (See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].) (See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is the installation condition normal?
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Yes
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Go to the next step.
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No
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Correctly install the HO2S and perform the repair completion verification.
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8
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PURPOSE: VERIFY IF A/F SENSOR IS INSTALLED CORRECTLY
• Verify the A/F sensor installation condition. (See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].) (See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is the installation condition normal?
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Yes
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Go to the next step.
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No
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Correctly install the A/F sensor and perform the repair completion verification.
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9
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PURPOSE: INSPECT EXHAUST SYSTEM FOR LEAKAGE
• Verify the exhaust gas leakage from the exhaust system. (between A/F sensor and HO2S)
• Is there any malfunction?
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Yes
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Repair or replace the malfunctioning location and perform the repair completion verification.
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No
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Go to the next step.
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10
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PURPOSE: INSPECT MAP SENSOR FOR MALFUNCTION
• Inspect the applicable part. (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].) (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is the part normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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11
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PURPOSE: INSPECT MAF SENSOR FOR MALFUNCTION
• Inspect the applicable part. (See MASS AIR FLOW (MAF) SENSOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].) (See MASS AIR FLOW (MAF) SENSOR INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is the part normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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12
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PURPOSE: INSPECT AIR CLEANER ELEMENT FOR MALFUNCTION
• Remove the air cleaner element with the engine is running. (See AIR CLEANER ELEMENT REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].) (See AIR CLEANER ELEMENT REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Does the engine speed increase?
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Yes
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Inspect the air cleaner element.
• If there is any malfunction:
• If there is no malfunction:
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No
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Go to the next step.
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Repair completion verification 1
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PURPOSE: VERIFY THAT VEHICLE IS REPAIRED
• Install/connect the part removed/disconnected during the troubleshooting procedure.
• Clear the DTC recorded in the memory. (See CLEARING DTC.)
• Replicate the vehicle conditions at the time the DTC was detected using the following procedure.
• Perform the DTC inspection for the PCM. (See DTC INSPECTION.)
• Is the same Pending DTC present?
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Yes
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Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1.
• If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].) (See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
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No
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Go to the next step.
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Repair completion verification 2
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PURPOSE: VERIFY IF OTHER DTCs DISPLAYED
• Perform the DTC inspection. (See DTC INSPECTION.)
• Are any other DTCs displayed?
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Yes
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Repair the malfunctioning location according to the applicable DTC troubleshooting.
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No
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DTC troubleshooting completed.
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