DTC P2120, DTC P2122, DTC P2123, DTC P2125, DTC P2127, DTC P2128 & DTC P2138: Notes
WARNING: This page is about a different car, the 2003 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
If ECM replacement is instructed in following testing, always ensure ECM harness connector and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction. If ECM is replaced, ECM must be programmed with proper ignition key code for engine immobilizer system. For programming procedures, see COMPUTER RELEARN PROCEDURES - LEXUS
article in GENERAL INFORMATION.
Code Definition
- DTC P2120: Throttle/Pedal Position Sensor/Switch "D" Circuit
- DTC P2122: Throttle/Pedal Position Sensor/Switch "D" Circuit Low Input
- DTC P2123: Throttle/Pedal Position Sensor/Switch "D" Circuit High Input
- DTC P2125: Throttle/Pedal Position Sensor/Switch "E" Circuit
- DTC P2127: Throttle/Pedal Position Sensor/Switch "E" Circuit Low Input
- DTC P2128: Throttle/Pedal Position Sensor/Switch "E" Circuit High Input
- DTC P2138: Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation