Throttle/Pedal Position Sensor/Switch ‘A’/’B’ Voltage Correlation
Table of contents
P2135 HUMMER 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
How do I fix code P2135 HUMMER?
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.
Tech Notes
- There is a factory service bulletin for the following HUMMER models:
- 2008-2009 HUMMER H2
- 2008-2010 HUMMER H3
- HUMMER Factory Service Bulletin OBDII Code P2135
Cost of diagnosing the P2135 HUMMER code
The cost of diagnosing the P2135 HUMMER code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P2135 HUMMER 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.
