Error code
OBD2 P0976
OBD2P0976
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Shift Solenoid 'B' Control Circuit Low.
Severity
moderateCan drive but may experience shifting issues.
Summary
P0976 indicates a low control circuit issue with Shift Solenoid B in the transmission.
Symptoms
- Poor acceleration
- High-revving before shifting
- Harsh shifting
Common Causes
- Rodent damage to wiring harness
- Poorly routed or damaged wiring harness after repairs
Diagnosis
- Check the wiring harness for damage and proper connections.
- Perform a resistance check between TCM and Shift Solenoid B.
- Test the solenoid itself if necessary.
Fixes
- Repair or replace damaged wiring harness
- Replace faulty shift solenoid
FAQ
What causes P0976?
Common causes include rodent damage to wiring harness and poor repairs leading to damaged or misrouted wiring.
How do I diagnose P0976?
Use a DVOM to check resistance in the circuit between TCM and Shift Solenoid B, and inspect for any physical damage to the harness.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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