P2135 Hummer Code - Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation
Quick Answer
The throttle Position (TP) sensors 1 and 2 are potentiometer type sensors each with 3 circuits. Common causes include Faulty electric throttle control actuator (TP sensor 1 and 2), Throttle Position Sensor harness is open or shorted, Throttle Position Sensor circuit poor connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2135 Hummer indicates Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation.
- Common causes
- Common causes include Faulty electric throttle control actuator (TP sensor 1 and 2), Throttle Position Sensor harness is open or shorted, Throttle Position Sensor circuit poor connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P2135 Hummer Description
- 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.
What are the Possible Causes of the DTC P2135 Hummer?
- 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 to Fix the DTC P2135 Hummer?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
2008-2009 HUMMER H2
2008-2010 HUMMER H3
HUMMER Factory Service Bulletin OBDII Code P2135
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2135 Hummer code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P2135 Hummer Code
1. What are the common symptoms of OBDII code P2135 in a Hummer?
- Common symptoms include engine stalling, lack of acceleration, rough idling, and the vehicle going into limp mode.
2. What does OBDII code P2135 on a Hummer indicate?
- The code P2135 indicates a Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation issue.
3. What are the possible causes of OBDII code P2135 in a Hummer?
- Possible causes include a faulty throttle position sensor, pedal position sensor malfunction, wiring issues, or a problem with the electronic throttle control system.
4. How can I diagnose the OBDII code P2135 in my Hummer?
- Diagnose the code by checking the throttle position and pedal position sensors for proper operation, inspecting the wiring for any damage, and using a scan tool to monitor sensor readings.
5. Can I continue driving my Hummer with OBDII code P2135?
- It is not recommended to drive the vehicle with code P2135 as it can lead to unsafe driving conditions and potential damage to the engine.
6. How can I repair OBDII code P2135 in my Hummer?
- Repair options include replacing the faulty throttle position sensor, fixing any wiring issues, or recalibrating the electronic throttle control system.
7. Are there any DIY tips for fixing OBDII code P2135 in a Hummer?
- DIY tips include checking and cleaning the throttle body, inspecting the connectors for corrosion, and ensuring proper sensor alignment during replacement.
8. How much does it typically cost to repair OBDII code P2135 in a Hummer?
- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $500 for parts and labor.
9. Can a mechanic reset the OBDII code P2135 in my Hummer without fixing the underlying issue?
- While a mechanic can clear the code, it is important to address the underlying problem to prevent the code from reoccurring and causing further issues.
10. Is it common for the Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation issue to occur in Hummer vehicles?
- This issue is relatively common in Hummer vehicles, especially in older models or those with high mileage due to sensor wear and wiring degradation over time.
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