P1A78 CHEVROLET - Starter/Generator Control Module Coolant Temperature Sensor 3 Performance
P1A78 CHEVROLET Possible Causes
- Faulty Starter/Generator Control Module (SGCM)
- Starter/Generator Control Module (SGCM) harness is open or shorted
- Starter/Generator Control Module (SGCM) circuit poor electrical connection
First diagnose P1A78 CHEVROLET 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 P1A78 CHEVROLET code
Labor: 1.0The cost of diagnosing the P1A78 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.
P1A78 CHEVROLET Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1a78 Chevrolet DescriptionThe Starter/Generator Control Module (SGCM) monitors its internal fluid temperature sensors to control the SGCM coolant pump and SGCM cooling fan. The internal fluid temperature sensors of the SGCM are thermistors and are not serviceable. When the internal fluid temperatures are cold, the resistances of the sensors are high and the voltage signals are high. When the internal fluid temperatures are hot, the resistances of the sensors are low and the voltage signals are low. The input parameters are not displayed on the scan tool.
P1A78 CHEVROLET More InformationNeed more information on how to fix the P1A78 CHEVROLET code?
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