Diagnostic procedure

DTC P2196 DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAVE BEEN RECORDED Have the FREEZE FRAME DATA and DIAGNOSTIC MONITORING TEST RESULTS (HO2S related) been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA and DIAGNOSTIC MONITORING TEST RESULTS on the repair order, then go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Verify related Service Bulletins and/or on-line repair information availability. Is any related repair information available?	Yes	Perform the repair or diagnosis according to the available repair information. If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	VERIFY RELATED PENDING CODE OR STORED DTC Turn the ignition switch to off, then ON position (Engine off). Verify the related PENDING CODE or stored DTCs. Is the DTC P2177 or P2187 also present?	Yes	Go to the appropriate DTC inspection. (See DTC TABLE ).
3		No	Go to the next step.
4	IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA Is DTC P2196 on FREEZE FRAME DATA?	Yes	Go to the next step.
4		No	Go to FREEZE FRAME DATA DTC inspection. (See DTC TABLE ).
5	VERIFY CURRENT INPUT SIGNAL STATUS Connect the WDS or equivalent to the DLC-2. Verify the following PIDs. (See PCM INSPECTION ). APP1 APP2 ECT MAF TP VSS Are the PIDs normal?	Yes	Go to the next step.
5		No	Inspect the malfunctioning part according to the inspection results. Then go to Step 15.
6	VERIFY CURRENT INPUT SIGNAL STATUS UNDER FREEZE FRAME DATA CONDITION Connect the WDS or equivalent to the DLC-2. Verify the following PIDs under the FREEZE FRAME DATA condition. APP1 APP2 ECT MAF TP VSS Are the PIDs normal?	Yes	Go to the next step.
6		No	Inspect the malfunctioning part according to the inspection results. Then go to Step 15.
7	VERIFY CURRENT INPUT SIGNAL STATUS OF MAF SENSOR Connect the WDS or equivalent to the DLC-2. Start the engine. Access the MAF PI D. Verify that the MAF PID changes quickly according to engine speed. Is the PID normal?	Yes	Go to the next step.
7		No	Replace the MAF/IAT sensor, then go to Step 15.
8	INSPECT FRONT HO2S Inspect the front HO2S. (See HEATED OXYGEN SENSOR (HO2S) INSPECTION ). Is there any malfunction?	Yes	Replace the front HO2S, then go to Step 15. (See HO2S REMOVAL NOTE ).
8		No	Go to the next step.
9	INSPECT FUEL INJECTOR Inspect the fuel injector. (See FUEL INJECTOR INSPECTION ). Is there any malfunction?	Yes	Replace the suspected fuel injector, then go to Step 15. (See FUEL INJECTOR REMOVAL/INSTALLATION ).
9		No	Go to the next step.
10	INSPECT FUEL PRESSURE (HIGH-SIDE) Access and monitor FRP PID. Is the FRP PID value within the specified? (See USING THE WDS OR EQUIVALENT ).	Yes	Go to Step 14.
10		No	Go to the next step.
11	IDENTIFY CAUSE BY FUEL PRESSURE SENSOR OR HIGH PRESSURE FUEL PUMP Is the vehicle accelerate performance normally?	Yes	Go to the next step.
11		No	Go to Step 16.
12	INSPECT FUEL PRESSURE SENSOR Inspect the fuel pressure sensor. (See FUEL PRESSURE SENSOR INSPECTION ). Is the fuel pressure sensor normal?	Yes	Go to Step 14.
12		No	Replace the fuel delivery pipe, then go to Step 15.
13	INSPECT HIGH PRESSURE FUEL PUMP Replace the high pressure fuel pump Monitor FUEL_PRES PID Is the FUEL_PRES PID value within the specified? (See USING THE WDS OR EQUIVALENT ).	Yes	Go to Step 15.
13		No	Go to the next step.
14	INSPECT FUEL PRESSURE (LOW-SIDE) Connect the fuel pressure gauge between fuel pump and high pressure fuel pump. Measure the low side fuel pressure. (See FUEL LINE PRESSURE INSPECTION ). Is the low side fuel pressure within the specified?	Yes	Go to the next step.
14		No	Inspect for following: Fuel line restriction Fuel filter clogging If okay replace the fuel pump. Then go to the next step.
15	VERIFY TROUBLESHOOTING OF DTC P2196 COMPLETED Make sure to reconnect all disconnected connectors. Clear the DTC from the PCM memory using the WDS or equivalent. Perform the PCM Adopted Memory Produce Drive Mode and HO2S heater, and TWC Repair Verification Drive Mode. (See OBD-II DRIVE MODE ). Is the PENDING CODE for this DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION ).
15		No	Go to the next step.
16	VERIFY AFTER REPAIR PROCEDURE Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE ). Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE ).
16		No	Troubleshooting completed.