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Home >> Saturn >> 1992 >> SC Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 1.9L PFI >> Pcm/BCM Code Charts >> Code 26: Quad-Driver CKT >> Diagnostic Aids

Diagnostic Aids

A shorted or open solenoid, relay or bulb can cause a Code 26. If only one output circuit is bad, PCM will shut down only that circuit and not entire quad-driver. If any corresponding codes exist (i.e., Code 32, EGR), diagnose that quad-driver first.

NOTE: The EGR resistance and Canister Purge Solenoid resistance have been updated per Saturn TSB 96-T-08.
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