Engine-Codes - Infiniti - P1229 Infiniti

P1229 Infiniti Code - Sensor Power Supply Circuit Shorted

- Code Popularity: 13,428 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P1229 Infiniti?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Check harness body ground
  • Faulty Accelerator Pedal Position (APP) sensor
  • Faulty Power Steering Pressure (PSP) sensor
  • Faulty Refrigerant Pressure sensor
  • Faulty EVAP Control System Pressure sensor

Code Tech Notes

Start by inspecting the connections of the harness to the body grounds.

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How to Fix the DTC P1229 Infiniti?

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 P1229 Infiniti 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.

What are Code Possible Symptoms?

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

What Does the P1229 Infiniti Code Mean?

The Engine Control Module (ECM) detects the voltage of the power source for the sensor is excessively low or high. The ECM stops the electric throttle control actuator control, and the throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the voltage of the power source for the sensor is excessively low or high.

P1229 Infiniti Code - Sensor Power Supply Circuit Shorted

Need more Information on the Code?

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Information for Specific Infiniti Models

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