Diagnostic procedure

DTC P0463 - DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED Has FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		No	Record FREEZE FRAME DATA on repair order, then go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Check for related Service Bulletins and/or online repair information availability. Is any related repair information available?	Yes	Perform 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 CURRENT INPUT SIGNAL STATUS-IS CONCERN INTERMITTENT OR CONSTANT Connect breakout box with PCM disconnected. Turn key to ON (Engine off). Check voltage at breakout box terminal 12. Is voltage above 4.9 V?	Yes	Go to the next step.
3		No	Intermittent concern exists. Go to INTERMITTENT CONCERNS TROUBLESHOOTING procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING .)
4	INSPECT POOR CONNECTION OF FUEL GAUGE SENDER UNIT CONNECTOR Turn the ignition switch off. Disconnect fuel gauge sender unit connector. Check for poor connection (damaged, pulled-out terminals, corrosion, etc.). Is there any malfunction?	Yes	Repair suspected terminal, then go to Step 9.
4		No	Go to the next step.
5	CLASSIFY FUEL GAUGE SENDER UNIT OR HARNESS MALFUNCTION Turn key to ON (Engine off). Check voltage at breakout box terminal 12. Is voltage below 0.1 V?	Yes	Inspect fuel gauge sender unit and repair or replace if necessary, then go to Step 9.
5		No	Go to the next step.
6	INSPECT FTL SIGNAL CIRCUIT FOR OPEN Turn key to ON (Engine off). Measure voltage between fuel gauge sender unit terminal A (harness-side) and body ground. Is voltage above 4.5-5.5 V?	Yes	Go to step 8.
6		No	Go to the next step.
7	INSPECT POOR CONNECTION OF PCM CONNECTOR Turn the ignition switch off. Disconnect PCM connector. Check for poor connection (damaged, pulled-out terminals, corrosion, etc.). Is there any malfunction?	Yes	Repair suspected terminal, then go to Step 9.
7		No	Repair or replace open circuit between fuel gauge sender unit terminal A (harness-side) and PCM terminal 12 (harness-side), then go to Step 9.
8	INSPECT FUEL GAUGE SENDER UNIT GROUND CIRCUIT FOR OPEN Turn the ignition switch off. Check continuity between fuel gauge sender unit terminal C (harness-side) and body ground. Is there continuity?	Yes	Go to the next step.
8		No	Repair or replace harness for open, then go to the next step.
9	VERIFY TROUBLESHOOTING OF DTC P0463 COMPLETED Make sure to reconnect all disconnected connectors. Turn key to ON (Engine off). Clear the DTC from the memory using the WDS or equivalent. Is pending code of same DTC present?	Yes	Replace PCM, then go to the next step.
9		No	Go to the next step.
10	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 .)
10		No	Troubleshooting completed.