General Motors Powertrain

415

UnclassifiedGeneral

What This Code Means

MIL illuminated (remains on for 5 seconds post-fault); Adaptive fuel learning disabled for the remaining key-on duration; Closed Loop operation disabled while fault persists

Possible Causes

  • •Abnormally low feedback voltage on driver circuit (under 4 volts for 10 injector firings while battery voltage exceeds 9 volts)
  • •Open injector coil for cylinder #3
  • •Shorted driver circuit for Injector Driver #3

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