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Home >> Buick >> 1994 >> Roadmaster Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Engine Controls - Tests W/Codes) >> ECM/Pcm Code Charts >> Code 67, A/C Pressure Sensor >> Diagnostic Aids
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Diagnostic Aids

WARNING: This page is about a different car, the 1994 Cadillac Fleetwood. However, it is still accessible from the selected car via links, so may be relevant.

A Code 67 will store in PCM memory but will not turn on the SERVICE ENGINE SOON light. An A/C system low on charge could cause a Code 67 to set.

Fig 1: Code 67 Schematic (Fleetwood) A/C Pressure Sensor
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Fig 2: Code 67 Flow Chart (Fleetwood) A/C Pressure Sensor
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