What this code means

The Electronic Throttle Control (ETC) system has entered power limiting (limp) mode. The PCM has restricted throttle opening due to a detected fault in the ETC system, limiting vehicle speed and acceleration for safety.

Symptoms

• Severely reduced engine power
• Throttle response very limited
• Vehicle may only idle or drive slowly
• Check Engine Light
• Possible ETC warning light

Common causes

• ETC system fault detected
• Throttle body malfunction
• Accelerator pedal position sensor fault
• Wiring issue in ETC circuit
• PCM detected conflicting throttle signals

Diagnostic steps

1. Check for other ETC-related DTCs first
2. Inspect accelerator pedal position sensor
3. Check throttle body operation
4. Inspect all ETC wiring for damage
5. Key off/on cycle may temporarily restore normal operation

Repair notes

Diagnose and repair the root ETC fault. May require throttle body or pedal sensor replacement.

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