P2121 Diagnostic Trouble Code Discussion for October 2011
Accelerator Pedal Position Sensor 1 Performance
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P2121
| Help Request | Posted | |
| 2003 Lexus GS300 3.0L MIL Lamp on VIN: JT8BD69S73 P2121: Throttle Pedal Position Sensor/Switch 'D' Circuit Malfunction. ... ck engine lights on. Code was a P2121, which I determined to be caused by the TPS. Replaced the TPS, cleared the codes and now it comes back with this C1201 which is an engine control malfunction. The P2121 has not retur... |
October 19, 2011 | |
| 2003 Lexus GS300 3.0L MIL Lamp on VIN: JT8BD69S73 P2121: Throttle Pedal Position Sensor/Switch 'D' Circuit Malfunction. ... ck engine lights on. Code was a P2121, which I determined to be caused by the TPS. Replaced the TPS, cleared the codes and now it comes back with this C1201 which is an engine control malfunction. The P2121 has not retur... |
October 20, 2011 |
