P1AF8 - Drive Motor 1 Control Module Shutdown Performance
P1AF8 Possible Causes
- Faulty Drive Motor Generator
- Drive Motor Generator harness is open or shorted
- Drive Motor Generator circuit poor electrical connection
First diagnose P1AF8 code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the P1AF8 code
Labor: 1.0The cost of diagnosing the P1AF8 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
P1AF8 Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1af8 DescriptionThe drive motor generator Power Inverter Control Module (PIM) contains two Motor Control Modules (MCMs) and the Hybrid Powertrain Control Module (HPCM). Each MCM operates its respective drive motor generator based upon HPCM commands. Each MCM controls the speed, direction and output torque of its respective drive motor generator through the sequencing actuation of high current switching transistors called insulated gate bipolar transistors (IGBTs). Each drive motor generator operates utilizing 3 phase Alternating Current (AC) electricity. Each IGBT operates a single phase of the drive motor generator. Each phase is individually identified as U, V and W. Each MCM monitors the current of each phase in order to detect PIM overcurrent conditions.
When high voltage is enabled, each MCM supplies its respective drive motor generator with just enough current to energize the magnetic field even when no motor generator torque is required. The MCM monitors the phase current sensors for this minimal current to ensure the drive motor phase circuits are functioning properly.
P1AF8 More InformationNeed more information on how to fix the P1AF8 code?
Get Access to Factory Service Manuals
P1AF8 Information for specific makes
- P1AF8 BUICK Drive Motor 1 Control Module Shutdown Performance
- P1AF8 CADILLAC Drive Motor 1 Control Module Shutdown Performance
- P1AF8 CHEVROLET Drive Motor 1 Control Module Shutdown Performance
- P1AF8 GMC Drive Motor 1 Control Module Shutdown Performance
- P1AF8 SATURN Drive Motor 1 Control Module Shutdown Performance
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