P2136Throttle/Pedal Position Sensor/Switch A/C Voltage Correlation
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2136 reports that position signals A and C disagree. On engines with two electronic throttles, C typically belongs to the second throttle body: GM's 2023 table 23OBDG07 assigns C to sensor 1 of the bank 2 throttle. Mercedes-Benz documents P2136 for its M177 twin-turbo V8 in AMG C63, GLC63, SL63 and related models: bulletin LI07.10-P-080384 lists it with P2135, the A/G and B/G checks and actuator faults, traces the set to increased electrical resistance in the connector pins of both throttle actuators, and replaces the connector sockets with coated terminals. FCA also lists the code in emissions recall T21 for the 2004-2006 Dodge Sprinter. Expect a warning lamp and possibly reduced power.
- What you may notice
- Engine warning lamp on
- Possible loss of power
- Often stored together with P2135
- Likely causes
- LikelyIncreased resistance in the throttle actuator connector pins
- PossiblePosition sensor in one throttle body drifted or worn
- RareCarbon or ice making one throttle lag behind the other
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.