Diagnostic Aids

Verify clean, tight connection on G202 (Brown wire).

An intermittent condition may be caused by poor connection, rubbed-through insulation, or a broken wire inside insulation. Check ECM harness connectors for backed-out terminals, improper mating, broken locks, improperly formed or damaged terminals, and poor terminal-to-wire connections before component replacement.

Fig 1: CODE 42 - Schematic (Prizm) Vehicle Speed Sensor Circuit, Open Or Shorted Circuit

Fig 2: CODE 42 - Flow Chart (Prizm) (1 OF 2) Vehicle Speed Sensor Circuit, Open Or Shorted Circuit

Fig 3: CODE 42 - Flow Chart (Prizm) (2 OF 2) Vehicle Speed Sensor Circuit, Open Or Shorted Circuit