P0972 moderate

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.

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Keep driving?: Short distances only
DIY difficulty: hard
Estimated cost: $150 - $800 (parts and labor)

Check Your Fluid First

ANCEL AD310 OBD-II Scanner

Read and clear transmission codes. Many trans codes are caused by low or burnt fluid -- check level and color before assuming the worst.

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Read Transmission Codes

LAUNCH CRP123X (Reads All Systems)

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

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

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.