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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1667 (Hybrid Controls - 3.6L (Hp5) - Introduction) >> Description and Operation >> Drive Motor Generator Control Module Description and Operation >> Accessory DC Power Control Module (APM) >> Communication and Hosted Diagnostics

Communication and Hosted Diagnostics

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The APM has internal diagnostic tests that run at both power-up and during operation. All DTCs from the APM are reported to and hosted by the HPCM. The APM communicates directly only with the HPCM and only on the high speed hybrid GMLAN communication circuit.

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