Shift Solenoid A Control Circuit Range/Performance
The P0972 code means the vehicle's onboard diagnostic system has detected: Shift Solenoid A Control Circuit Range/Performance. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $150 - $800 (parts and labor)
Read and clear transmission codes. Many trans codes are caused by low or burnt fluid -- check level and color before assuming the worst.
Basic scanners only read engine codes. This reads transmission, ABS, and airbag too.
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Common Symptoms
- Check Engine Light illuminated
- Harsh or delayed 1-2 shift
- Transmission slipping in low gears
- Vehicle may enter limp mode
Probable Causes (Ranked by Likelihood)
- Shift solenoid A sticking or partially blocked Very High
- Contaminated or degraded transmission fluid High
- Electrical resistance out of spec in solenoid A circuit Moderate
- Valve body wear affecting solenoid A operation Low
Frequently Asked Questions
What does shift solenoid A control?
Shift solenoid A typically controls the 1-2 shift or works with other solenoids to manage gear selection. The exact function varies by transmission model.
Can a fluid change fix P0972?
If the solenoid is sticking due to contaminated fluid, a fluid and filter change may resolve the issue. This is a recommended first step before replacing the solenoid.
Where is shift solenoid A located?
Shift solenoids are typically in the valve body inside the transmission. Accessing them requires removing the transmission pan and sometimes the valve body.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
-
Check transmission fluid level and condition
-
Monitor shift solenoid A duty cycle and response on a scan tool
-
Test solenoid A resistance and compare to specifications
-
Perform a transmission fluid and filter service
Sources 2
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
- Cross-checked against the SAE J2012:2002 DTC table (2026-08-27)archived scan of the SAE standard — readable copy, not SAE’s current edition
Commonly Affected Vehicles
- 2007-2017 Toyota Camry
- 2008-2018 Honda Accord
- 2010-2020 Nissan Altima (CVT)
- 2009-2019 Chevrolet Malibu
Related Codes
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