Diagnostic Procedure

DTC P0462:00 PCM (SKYACTIV-G 2.5 - WITH CYLINDER DEACTIVATION) DIAGNOSTIC PROCEDURE

STEP	INSPECTION	RESULTS	ACTION
1	RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION NOTE: Recording can be facilitated using the screen capture function of the PC. Record the snapshot data on the repair order.	-	Go to the next step.
2	VERIFY RELATED SERVICE INFORMATION AVAILABILITY Verify related Service Information availability. Is any related Service Information available?	Yes	Perform repair or diagnosis according to the available Service Information. If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	INSPECT FUEL GAUGE SENDER UNIT CONNECTOR CONDITION Switch the ignition off. Disconnect the fuel gauge sender unit connector. Inspect for poor connection (such as damaged/pulled-out pins, corrosion). Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 10.
3		No	Go to the next step.
4	INSPECT REAR BODY CONTROL MODULE (RBCM) CONNECTOR CONDITION Disconnect the rear body control module (RBCM) connector. Inspect for poor connection (such as damaged/pulled-out pins, corrosion). Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 10.
4		No	Go to the next step.
5	INSPECT FUEL GAUGE SENDER UNIT SIGNAL CIRCUIT FOR SHORT TO GROUND Verify that the fuel gauge sender unit and rear body control module (RBCM) connectors are disconnected. Inspect for continuity between fuel gauge sender unit terminal D (wiring harness-side) and body ground. Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between fuel gauge sender unit terminal D and rear body control module (RBCM) terminal 3I. If there is a common connector: Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground. Repair or replace the malfunctioning part. If there is no common connector: Repair or replace the wiring harness which has a short to ground. Go to Step 10.
5		No	Go to the next step.
6	INSPECT FUEL GAUGE SENDER UNIT SIGNAL CIRCUIT AND GROUND CIRCUIT FOR SHORT TO EACH OTHER Verify that the fuel gauge sender unit and rear body control module (RBCM) connectors are disconnected. Inspect for continuity between fuel gauge sender unit terminals D and C (wiring harness-side). Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: Fuel gauge sender unit terminal D-Rear body control module (RBCM) terminal 3I Fuel gauge sender unit terminal C-Rear body control module (RBCM) terminal 3C If there is a common connector: Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to each other. Repair or replace the malfunctioning part. If there is no common connector: Repair or replace the wiring harness which has a short to each other. Go to Step 10.
6		No	Go to the next step.
7	INSPECT FUEL GAUGE SENDER UNIT Inspect the fuel gauge sender unit. (See FUEL GAUGE SENDER UNIT INSPECTION [2WD] .) Is there any malfunction?	Yes	Replace the fuel gauge sender unit, then go to Step 10. (See FUEL PUMP UNIT DISASSEMBLY/ASSEMBLY [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)] .)
7		No	Go to the next step.
8	INSPECT REAR BODY CONTROL MODULE (RBCM) Inspect the rear body control module (RBCM). (See REAR BODY CONTROL MODULE (RBCM) INSPECTION .) Is there any malfunction?	Yes	Replace the rear body control module (RBCM), then go to Step 10. (See REAR BODY CONTROL MODULE (RBCM) REMOVAL/INSTALLATION .)
8		No	Go to the next step.
9	INSPECT INSTRUMENT CLUSTER Inspect the instrument cluster. (See INSTRUMENT CLUSTER INSPECTION .) Is there any malfunction?	Yes	Replace the instrument cluster, then go to the next step. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
9		No	Go to the next step.
10	VERIFY DTC TROUBLESHOOTING COMPLETED Always reconnect all disconnected connectors. Clear the DTC from the PCM memory using the M-MDS. (See CLEARING DTC [PCM (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))] .) Perform the KOEO or KOER self test. (See KOEO/KOER SELF TEST [PCM (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))] .) Is the PENDING CODE for this DTC present?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)] .) Go to the next step.
10		No	Go to the next step.
11	VERIFY AFTER REPAIR PROCEDURE Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE [PCM (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))] .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [PCM (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))] .)
11		No	DTC troubleshooting completed.