Starter/Generator Field Coil Circuit
Table of contents
P1AA7 CHEVROLET Possible Causes
- Faulty Motor Generator Unit (MGU)
- Motor Generator Unit (MGU) harness is open or shorted
- Motor Generator Unit (MGU) circuit poor electrical connection
How do I fix code P1AA7 CHEVROLET?
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 connector’s pins.
Cost of diagnosing the P1AA7 CHEVROLET code
The cost of diagnosing the P1AA7 CHEVROLET 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.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1AA7 CHEVROLET Description
The Starter/Generator Control Module (SGCM) monitors the Motor Generator Unit (MGU) field coil circuit to see if the field coil current is within tolerance.