DTC P0230: Fuel Pump Primary Circuit Malfunction
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P0230 - FUEL PUMP PRIMARY CIRCUIT MALFUNCTION
| Description: | The powertrain control module (PCM) monitors the fuel pump (FP) circuit output from the PCM. The test fails if the FP output is commanded ON (grounded), excessive current draw is detected on the FP circuit, or with the FP output commanded OFF, voltage is not detected on the FP circuit and the PCM expects to detect VPWR voltage coming through the fuel pump relay coil to the FP circuit. | ||
| Possible Causes: |
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| Diagnostic Aids: | When the FPF PID reads YES, a fault is currently present. An open circuit or short to ground can only be detected with the fuel pump commanded OFF. A short to voltage can only be detected with the fuel pump commanded on. During the key on engine off (KOEO) and key on engine running (KOER) self-test, the fuel pump output command is cycled on and off. |
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| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| Excursion | GO to KA: Fuel Pump (FP) Relay STEP KA31. | GO to KA: Fuel Pump (FP) Relay STEP KA31. | GO to KA: Fuel Pump (FP) Relay STEP KA60. |
| All others | GO to KA: Fuel Pump (FP) Relay STEP KA1. | GO to KA: Fuel Pump (FP) Relay STEP KA1. | GO to KA: Fuel Pump (FP) Relay STEP KA30. |