P0977 - Shift Solenoid 'B' Control Circuit High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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P0977 Possible Causes

  • Low transmission fluid level
  • Dirty transmission fluid
  • Faulty shift solenoid 'B' valve
  • Shift solenoid 'B' valve harness or connectors
  • Shift solenoid 'B' valve circuit is open or shorted

First diagnose P0977 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 connector's pins.

Cost of diagnosing the P0977 code

    Labor: 1.0

    The cost of diagnosing the P0977 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.

P0977 Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0977 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 .
OBDII Code P0977 - Shift Solenoid 'B' Control Circuit High - AutoCodes.com

P0977 More Information

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