P1128 LEXUS Possible Causes
- Faulty Throttle Control Motor
- Throttle Control Motor harness is open or shorted
- Throttle Control Motor circuit poor electrical connection
How do I fix code P1128 LEXUS
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
Cost of diagnosing the P1128 LEXUS code
Labor: 1.0The cost of diagnosing the P1128 LEXUS code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
When is the P1128 LEXUS code detected?Engine Control Module (ECM) detects short both circuits between ECM and throttle control motor.
P1128 LEXUS Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1128 LEXUS MeaningThe throttle control motor is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle control motor to make the throttle valve opening angle properly in response to driving condition.
P1128 LEXUS More InformationNeed more information on how to fix the P1128 LEXUS code?
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