P1128 – Throttle Control Motor Circuit (Nissan)
Description
The ECM detected an electrical malfunction in the throttle control motor circuit.
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Compare Diagnostic ScannersSymptoms
- Limp mode
- Poor acceleration
- Unstable idle
- Throttle not responding
- Check engine light
Causes
- Open or shorted wiring
- Faulty throttle motor
- Connector corrosion
- ECM driver fault
Diagnosis
- Test wiring continuity
- Inspect motor
- Check connectors
- Scan live data
Repair
- Repair wiring
- Replace throttle motor
- Clean connectors
