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Home >> Geo >> 1995 >> Prizm Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 1.6L >> Diagnostic DTC Charts >> DTC 31, Map Sensor, Open Or Shorted Circuit >> Diagnostic Procedures

Diagnostic Procedures

If DTCs 22, 24 and 41 are also set, may be an open in sensor ground circuit. 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: DTC 31 Schematic (Prizm 1.6L VIN 6) MAP Sensor, Open Or Shorted Circuit
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Fig 2: DTC 31 Diagnostic Flow Chart (Prizm 1.6L VIN 6) MAP Sensor, Open Or Shorted Circuit
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