Engine Error
P2135
Throttle/Pedal Position Sensor/Switch 'A' / 'B' Voltage Correlation
Severity
High
Symptoms
Limp mode, no throttle response, sudden stalling
Common Causes
- Failed throttle body
- Faulty Accelerator Pedal Position (APP) sensor
- Corroded wiring
- PCM software issue
How to Fix
- 1 Replace electronic throttle body
- 2 Replace accelerator pedal assembly
- 3 Clean throttle body connector
- 4 Perform PCM update
Estimated Repair Cost
USD
$250
–
$700
Throttle body: $300 - $600; Pedal assembly: $250 - $400