What this code means

The ECM has limited engine RPM due to a throttle control malfunction.

Symptoms

• Engine won't rev past low RPM
• Check engine light
• Limited acceleration

Common causes

• Throttle body fault
• APP sensor issue
• Wiring problem

Diagnostic steps

1. Scan for companion codes
2. Check throttle body operation
3. Verify APP sensor signals

Repair notes

Fix underlying throttle system fault.

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