Diagnostic Procedure

DIAGNOSTIC PROCEDURE

NOTE: 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 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 Engine Control Module.
- If OK check and replace Engine Control Module.
- If not OK repair or replace harness or connector.