DTC P0123: TP Sensor Circuit High Voltage

1. Turn the ignition switch ON (II).

1. Check the TP SENSOR in the DATA LIST with the HDS.

Is there about 0.5 V when the throttle is fully closed and about 4.5 V when the throttle is fully opened?

YES | - | Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the TP sensor and the ECM/PCM.■
NO | - | Go to Step 3 .

1. Turn the ignition switch OFF.

1. Disconnect the TP sensor 3P connector.

1. Turn the ignition switch ON (II).

1. At wire harness side, measure voltage between TP sensor 3P connector terminals No. 1 and No. 3.

Is there about 5 V?

YES | - | Go to Step 8 .
NO | - | Go to Step 7 .