P16F9 CHEVROLET – Control Module Shutdown Performance

P16F9 CHEVROLET Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P16F9 CHEVROLET Possible Causes

Faulty Hybrid Powertrain Control Module (HPCM),Hybrid Powertrain Control Module (HPCM) harness is open or shorted,Hybrid Powertrain Control Module (HPCM) circuit poor electrical connection

P16F9 CHEVROLET Description

This diagnostic applies to internal microprocessor integrity conditions within the Hybrid Powertrain Control Module (HPCM). The HPCM and each Motor Control Module (MCM) utilize a programmable logic device (PLD) to perform certain input and output functions. The HPCM monitors the ability of the PLD to perform these functions.