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DTC P0232 - Fuel Pump Relay: Condition

Fuel pump primary circuit fault has been indicated. Possible causes are as follows:

1) KOEO & KOER DTC P0232  If engine starts, go to next step. If engine does not start, go to step 6). For Continuous Memory DTC P0232, go to step 11).

2) Check Fuel Pump  Turn ignition on for 5 seconds. Listen for operational noise from fuel pump. If fuel pump can be heard, go to next step. If fuel pump cannot be heard, go to step 4).

3) Check Fuel Pump Relay  Turn ignition off. Disconnect fuel pump relay. Turn ignition on. Listen for operational noise from fuel pump. If fuel pump operates, repair short to power in FPM or POWER-TO-PUMP circuit and repeat QUICK TEST. If fuel pump still does not operate, replace fuel pump relay and repeat QUICK TEST.

4) Check FPM Circuit  Turn ignition off. Leave fuel pump relay disconnected. Disconnect PCM wiring harness connector. Inspect pins for damage and repair as necessary. Install Breakout Box (014-00950), leaving PCM disconnected. Measure resistance between test pin No. 40 and POWER-TO-PUMP terminal at fuel pump relay wiring harness connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open circuit and repeat QUICK TEST.

5) Check PCM Fuel Pump Circuit  Leave ignition off. Reconnect PCM and fuel pump relay. Connect scan tool to DLC. Turn ignition on. Using scan tool, access FPM PID. If scan tool indicates OFF, fuel pump primary circuit is okay and testing is complete. If scan tool does not indicate OFF, replace PCM and repeat QUICK TEST.

6) Check IFS Switch  Turn ignition off. Locate IFS switch in trunk near left hinge. Measure resistance between terminals "C" and NC of IFS switch. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, reset or replace IFS switch and repeat QUICK TEST.

7)  Leave ignition off and IFS switch disconnected. Disconnect fuel pump relay. Measure resistance between POWER-TO-PUMP terminal at fuel pump relay connector and POWER-TO-PUMP terminal at IFS connector. If resistance is less than 7 ohms, go to next step. If resistance is 7 ohms or more, repair open in POWER-TO-PUMP circuit and repeat QUICK TEST.

8)  Leave ignition off, and fuel pump relay and IFS switch disconnected. Measure resistance between fuel pump motor ground circuit at connector and chassis ground. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in fuel pump motor ground circuit and repeat QUICK TEST.

9)  Leave ignition off, and fuel pump relay and IFS switch disconnected. Measure resistance between POWER-TO-PUMP terminal at fuel pump connector and POWER-TO-PUMP terminal at IFS connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in POWER-TO-PUMP circuit and repeat QUICK TEST.

10)  Leave ignition off, fuel pump relay and IFS switch disconnected. Measure resistance between fuel pump motor terminals. If resistance is less than 10 ohms, fuel pump circuits are okay and testing is complete. If resistance is 10 ohms or more, replace fuel pump and repeat QUICK TEST.

11) Continuous Memory DTC P0232  Turn ignition off. Connect scan tool to Data Link Connector. Using scan tool, access FRM PID. Observe PID for indication of fault while wiggling and bending POWER-TO-PUMP circuit between fuel pump relay and fuel pump. Fault will be indicated by FPM PID turning on. Wiggle and bend FPM circuit between PCM and POWER-TO-PUMP circuit splice. Wiggle and bend fuel pump ground circuit. fuel pump. Check connectors for clean tight connection. If any faults are found, isolate and repair as necessary. If no faults are found, fault cannot be duplicated at this time. Go to CIRCUIT TEST Z (INTERMITTENT) .

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