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Home >> Buick >> 1994 >> Roadmaster Base >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 5 (Engine Controls - Tests W/Codes) >> ECM/Pcm Code Charts >> Code 70, A/C Compressor Relay Driver >> 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.

Check related harness connectors, including PCM harness. Check for damaged or pushed out terminals.

Fig 1: Code 70 Schematic (Fleetwood) A/C Compressor Relay Driver
G94H37231
Fig 2: Code 70 Flow Chart (Fleetwood) A/C Compressor Relay Driver
G94I35152
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