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P2121 Diagnostic Trouble Code Discussion for October 2011

Accelerator Pedal Position Sensor 1 Performance


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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
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