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Home › Cadillac › 2006 › STS Base, 4.6 A, AWD › Repair and Diagnosis › Engine Performance › System › Engine Control System - 4.6L (LH2) - DTC P0420 To P0689 › DTC P0686 › DTC Descriptor

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0686 Engine Controls Ignition Relay Control Circuit