OBD Codes List

Diagnostic reference · P0973

P0973

Shift Solenoid A Control Circuit Low

System
Transmission (P code)
Lamp
Check Engine Light
Category
Powertrain - Transmission

What it means

P0973 means Shift Solenoid A Control Circuit Low.

Where it lives

For P0973, the solenoid sits on the circuit this code reports. The description of P0973 reports a fault at the solenoid.

Check these first

  • A short to ground in the shift solenoid A circuit
  • A shift solenoid A coil that is failing
  • A chafed wire in the shift solenoid A harness
  • A backed out pin at the solenoid A connector

What to do next

  1. Read shift solenoid A voltage on a scan tool
  2. Check the circuit for a short to ground
  3. Measure shift solenoid A resistance
  4. Inspect the connector pins
  5. Replace the solenoid if the coil is off spec
  6. Clear the code and retest

Look up another code

Enter a full code or a symptom. Press / to search. How to read a code

Type a code above, or start from a symptom or a common code.

Updated

Generic SAE J2012 definition. Last updated 2026-10-10.