Diagnostic Aids

An intermittent may be caused by a poor connection, rubbed through wire insulation, or a wire broken inside the insulation. Inspect ECM harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, poor terminal to wire connection and damaged harness.

Fig 1: Code 41 Schematic, Ignition Signal Ckt., No Signal

Fig 2: Code 41 Flow Chart (1 of 2), Ignition Signal Ckt., No Signal

Fig 3: Code 41 Flow Chart (2 of 2), Ignition Signal Ckt., No Signal