What this code means

The TCC adaptive learning values have reached their maximum limit, indicating the torque converter clutch can no longer maintain proper engagement within the programmable range.

Symptoms

• Check Engine Light
• TCC shudder worsening over time
• Gradually increasing fuel consumption
• Slip at highway cruise
• TCC may stop engaging
• Occasional limp mode

Common causes

• Severe torque converter clutch wear
• Fluid deterioration beyond service limit
• Piston seal leak in converter
• TCC solenoid degradation
• Extended fluid service intervals

Diagnostic steps

1. Read TCC adaptation values
2. Monitor TCC slip percentage
3. Check transmission fluid age and condition
4. Test TCC apply pressure
5. Review service history for fluid changes

Repair notes

Torque converter replacement required when adaptation limit is reached. This indicates wear beyond what software can compensate for.

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