P2135
High SeverityThrottle/Pedal Position Sensor Voltage Correlation
Fuel System
What Does P2135 Mean?
TPS sensor A and B voltages do not agree. The ECM cannot trust throttle position.
Common Fix
Replace throttle body
Estimated Cost (DIY)
$100 - $300
Symptoms
- ⚠️Reduced power mode
- ⚠️Limp mode
- ⚠️Check engine light
- ⚠️No acceleration
Common Causes
Faulty TPS (inside throttle body)likely
Wiring issue to throttle bodypossible
Corroded connectorpossible
How to Diagnose P2135
- 1Check throttle body connector
- 2Compare TPS A and B readings
- 3Check for wiring damage
- 4Replace throttle body
Need to read or clear this code?
Shop OBD2 Scanners on Amazon →Frequently Asked Questions
- Is P2135 expensive?
- Throttle body replacement is $100-$300 DIY. Often needs a relearn procedure after installation.
- Can I just replace the TPS?
- On most modern vehicles, the TPS is integrated into the throttle body. The whole assembly must be replaced.