DTC 45

Codes 45 & 46: Main Throttle Position Sensor Circuit, DTC Chart:

Main Throttle Position Sensor Circuit, Wiring Diagram:

Main Throttle Position Sensor Circuit, Inspection Procedure Part 1 Of 4:

Main Throttle Position Sensor Circuit, Inspection Procedure Part 2 Of 4:

Main Throttle Position Sensor Circuit, Inspection Procedure Part 3 Of 4:

Main Throttle Position Sensor Circuit, Inspection Procedure Part 4 Of 4:

CIRCUIT DESCRIPTION
This circuit is not directly related to the TRAC control, but as it has an influence on TRAC control when trouble occurs in this circuit, it is used to switch off the TRAC system as a fail safe function.

NOTE:
^ After the inspection, clear the DTC.
^ The main Throttle Position Sensor signal is transmitted to the TRAC ECU from ECM, so if an error occurs at the engine side, the TRAC ECU also detects it.
If DTC No. P0120 or P0121 is being output for the engine, troubleshoot the engine first.