Question about 2002 Suzuki Vitara
P0230 The power train control module (PCM) provides ignition positive voltage to the coil side of the fuel pump relay. When the ignition switch is first turned ON, the PCM energizes the fuel pump relay, which applies power to the fuel pump. The PCM enables the fuel pump relay as long as the engine is cranking or running, and crankshaft reference pulses are received. If no crankshaft reference pulses are received, the PCM de-energizes the fuel pump relay after 2 seconds. The PCM monitors the voltage on the fuel pump relay control circuit. If the PCM detects an incorrect voltage on the fuel pump relay control circuit, DTC P0230 sets.
Check the voltage of the battery, and check the fuel pump relay. You can try swapping the relay with another relay like the A/C relay for now and see if the check engine light (MIL) goes away. The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail. Good luck and hope this helps. Keep me posted, be glad to help.
Posted on Jun 19, 2009
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