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  • P1284 Fuel Injection Pump Battery Volt Out Of Range

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    DTC P1284: FUEL INJECTOR PUMP BATTERY VOLT OUT-OF-RANGE

    1. Turn ignition on with engine off. Using scan tool, check for DTCs. If DTC SPECIFIC GOOD TRIP counter is not displayed and equal to zero, go to next step. If DTC SPECIFIC GOOD TRIP counter is displayed and equal to zero, replace fuel injection pump. Perform TEST VER-5A .

    2. At this time, conditions required for DTC to be stored are not present. Ensure ignition is on with engine off. Using scan tool, read and record FREEZE FRAME data. Road test vehicle under conditions displayed in FREEZE FRAME data parameters while noting DTC SPECIFIC GOOD TRIP COUNTER. If DTC SPECIFIC GOOD TRIP counter does not change to zero, test is complete. If DTC SPECIFIC GOOD TRIP counter changes to zero, replace fuel injection pump. Perform TEST VER-5A .


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