Diagnostic Aids

An open in injector drive or "peak and hold" circuits or ECM drive circuits shorted to voltage will cause a Code 65 to be set and also cause misfire due to an inoperative pair of injectors. "Peak and hold" circuits shorted to ground will cause a Code 65 to set while allowing injectors to pulse. An intermittent problem would have to be present for at least 20 seconds to set Code 65.

Fig 1: Code 65, Schematic, Injector Current Low, "L" Body

Fig 2: Code 65, Schematic, Injector Current Low, "N" Body

Fig 3: Code 65, Flow Chart, Injector Current Low, (1 of 2)

Fig 4: Code 65, Flow Chart, Injector Current Low, (2 of 2)

Fig 5: Code 65