Electronic Throttle Monitor Malfunction

What this code means

The ECU detected a discrepancy in the electronic throttle monitoring circuit. The throttle monitoring system has identified that the throttle position does not match expectations, triggering a safety intervention.

Symptoms

• Check Engine Light
• Reduced power mode
• Throttle limited
• ETC warning light
• Engine may shut down at high speed

Common causes

• Throttle body sensor discrepancy
• Throttle body actuator wear
• ECU monitoring circuit fault
• Wiring interference
• Voltage supply issue to throttle body

Diagnostic steps

1. Compare both throttle position sensor readings
2. Inspect throttle body for mechanical wear
3. Check wiring for interference or damage
4. Test voltage supply to throttle body
5. Perform throttle adaptation

Repair notes

Replace the throttle body assembly if sensor discrepancy cannot be resolved by adaptation.

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