Diagnostic Procedure Template

DTC 41 Throttle Position Sensor Circuit

DIAGNOSTIC PROCEDURE

HINT:
- If diagnostic trouble code 41 is displayed, check throttle position sensor circuit,
- If diagnostic trouble code 47 is displayed, check sub-throttle position sensor circuit.
- If diagnostic trouble code 22 (engine coolant temperature sensor circuit), 24 (intake air temperature sensor circuit) and 41 (throttle position sensor circuit) are output simultaneously, E2 (sensor ground) may be open.

1. CHECK VOLTAGE OF THROTTLE POSITION SENSOR.
- If OK check for momentary (intermittent) interruption.
- If not OK proceed to step 2.
2. CHECK OPERATION FOR THROTTLE POSITION SENSOR.
- If OK proceed to step 3.
- If not OK adjust or replace throttle position sensor.
3. CHECK FOR OPEN AND SHORT IN HARNESS AND CONNECTOR BETWEEN THROTTLE POSITION SENSOR AND ECM.
^. If OK check and replace ECM.
- If not OK repair or replace harness or connector.