OBDII Code List

P2135 CHEVROLET - Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3   
Comments  |  Add Comment

Possible causes

  • Faulty electric throttle control actuator (TP sensor 1 and 2)
  • Throttle Position Sensor harness is open or shorted
  • Throttle Position Sensor circuit poor connection
  • Faulty accelerator pedal position sensor

Tech notes

There is service bulletin from GM for
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
Factory Service bulletin P2135

Chevy / GMC Code P2135 TPS Problems

User Submitted Videos

Possible symptoms

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

P2135 Chevrolet Description

The throttle Position (TP) sensors 1 and 2 are potentiometer type sensors each with 3 circuits.

- A 5 - volt reference circuit.

- A low reference circuit.

- A signal circuit

The TP sensors are used to determine the throttle plate angle for various engine management systems. The control module provides each TP sensor a 5-volt reference circuit and a low reference circuit. The TP sensors then provide the control module with signal voltage proportional to the throttle plate movement. Both TP sensors signal voltage are low at the close throttle and increase as the throttle opens. When the control module detects that the TP sensor 1 signal and TP sensor 2 signals disagree or the signal voltages are outside the predetermined range, the P2135 code is set.

OBDII Code P2135 Chevrolet - Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation -

Need more help?

Get the P2135 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Related Information

P2135 CHEVROLET Comments

Help us improve Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P2135 Chevrolet code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧