General Motors Powertrain

431

UnclassifiedGeneral

What This Code Means

Malfunction Indicator Lamp (MIL) ON for active fault and for 5 seconds after active fault; Adaptive fuel control disabled for the remainder of the key-on cycle; Closed Loop operation disabled during active fault

Possible Causes

  • •Driver circuit short
  • •ECM detects low feedback voltage on internal injector while drive circuit is in off-state (low-side less than 4 volts for 10 injector firings when battery voltage > 9V)
  • •Injector coil open

Related General Motors Powertrain Fault Codes

432651426DTC 112421DTC 122415DTC 416414DTC 422413DTC 423
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