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Home >> Cadillac >> 2009 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Hybrid Engine Controls - DTC P181C To DTC P2797) >> DTC P1AC6 or P1AC7 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different variant/trim than selected.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
5-Volt Reference Circuit (ECM) ECM P0641, P0651 / HPCM P1AC6 ECM P0335 / HPCM P1AC6 ECM P0651, P2135 / HPCM P1AC6 -
CKP Sensor Signal Circuit1 ECM P0335 / HPCM P1AC6 ECM P0335 / HPCM P1AC7 ECM P0335 / HPCM P1AC6 ECM P0336 / HPCM P1AC7
Low Reference Circuit1 - ECM P0335 / HPCM P1AC7 ECM P0335 / HPCM P1AC6 -
1 ECM DTCs will not set with an open circuit condition between the circuit splice and the HPCM.