Engine-Codes - Infiniti - P1128 2004 Infiniti G35

P1128 2004 Infiniti G35 Code - Throttle Control Motor Circuit Short

- Code Popularity: 2,063 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents
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What are the Possible Causes of the DTC P1128 2004 Infiniti G35?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Throttle Control Motor
  • Throttle Control Motor harness is open or shorted
  • Throttle Control Motor circuit poor electrical connection
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How to Fix the DTC P1128 2004 Infiniti G35?

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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1128 2004 Infiniti G35 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

Engine Control Module (ECM) detects short both circuits between ECM and throttle control motor.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P1128 2004 Infiniti G35 Code Mean?

The 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 2004 Infiniti G35 Code - Throttle Control Motor Circuit Short

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