P0979 BUICK - Shift Solenoid 'C' Control Circuit Low
P0979 BUICK Possible Causes
- Faulty Shift Solenoid 'C'
- Shift Solenoid 'C' harness is open or shorted
- Shift Solenoid 'C' circuit poor electrical connection
First diagnose P0979 BUICK code
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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 P0979 BUICK code
Labor: 1.0
The cost of diagnosing the P0979 BUICK 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.P0979 BUICK Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of power
- Transmission shifting problems
P0979 Buick Description
The Engine Control Module (ECM) commands gear shifts by turning the shift solenoid valves ON/OFF . When there is an open or short circuit in any shift solenoid valve circuit, the ECM detects the problem and illuminates the engine light and stores the Diagnostic Trouble Code (DTC), and the ECM performs the fail-safe function and turns the other shift solenoids valves in good condition ON/OFF .
P0979 BUICK More Information
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