Engine-Codes - Chevrolet - P2135 Chevrolet

P2135 Chevrolet Code - Throttle Position Sensors 1-2 Not Plausible

- Code Popularity: 174,438 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents

What are the Possible Causes of the Code P2135 Chevrolet?

  • Faulty Throttle Body Assembly
  • Throttle Body harness is open or shorted
  • Throttle Body circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the P2135 Chevrolet Code?

Start by checking 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.

Code P2135 Chevrolet Tech Notes

There is a factory service bulletin for the following Chevrolet models:
2008-2009 Chevrolet TrailBlazer
2008-2011 Chevrolet Avalanche
2008-2011 Chevrolet Colorado
2008-2011 Chevrolet Express
2008-2011 Chevrolet Silverado
2008-2011 Chevrolet Suburban
2008-2011 Chevrolet Tahoe
2008-2011 Chevrolet Tahoe Two-Mode Hybrid
2009-2011 Chevrolet Silverado Two-Mode Hybrid
Chevrolet Factory Service Bulletin OBDII Code P2135

Chevy / GMC Code P2135 TPS Problems

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What is the Cost to Diagnose the Code P2135 Chevrolet?

Labor: 1.0

The cost to diagnose the P2135 Chevrolet code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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What are Code P2135 Chevrolet Possible Symptoms?

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

What Does the P2135 Chevrolet Code Mean?

The Throttle Body Assembly contains a contact-less inductive throttle position sensing element that is managed by a customized integrated circuit. The throttle position sensor is mounted within the throttle body assembly and is not serviceable. The Engine Control Module (ECM) supplies the throttle body with a 5 V reference circuit, a low reference circuit. The asynchronous signal means communication is only going from the throttle body to the ECM. The throttle body cannot receive data from the ECM over the signal/serial data circuit. The throttle position sensor provides a signal voltage that changes relative to throttle blade angle. The throttle position sensor information is transmitted between the throttle body and the ECM on the signal/serial data circuit. The ECM decodes the serial data signal and is used as voltages for throttle position sensor 1 and 2. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that throttle position sensors 1 and 2 disagree greater than 7 - 10 percent for greater than 1 s.
P2135 Chevrolet Code - Throttle Position Sensors 1-2 Not Plausible

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