P1129 – Throttle Control Motor Stuck (Nissan)

Description

The ECM detected a stuck throttle control motor affecting throttle plate movement.

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Symptoms

Limp mode
Poor acceleration
Unstable idle
Throttle not responding
Check engine light

Causes

Stuck throttle motor
Throttle body carbon buildup
Wiring issues
Connector corrosion

Diagnosis

Inspect throttle body
Test motor movement
Check wiring
Scan live data

Repair

Clean throttle body
Replace throttle motor
Repair wiring
Clean connectors