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Home >> Buick >> 1994 >> Roadmaster Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 5.7L >> ECM/Pcm Code Charts >> Code 70, A/C Compressor Relay Driver >> Diagnostic Aids
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Diagnostic Aids

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

Fig 1: Code 70 Schematic (5.7L) Compressor Relay Driver
G94A37150
Fig 2: Code 70 Flow Chart (5.7L) Compressor Relay Driver
G94I35152
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