About These Tests

Reading Codes:

Inspection Using Scan Tool - Sensor Read Test Input State Test, Output State Test And Actuator Test And Special Function

1. Carry out inspection by means of the data list and the actuator test function.
- If there is a malfunction, check and repair the chassis harnesses and components.
2. Recheck using the scan tool and check that the malfunction has been eliminated as a result of the repairs.
3. Erase the diagnostic trouble code from memory.
4. Remove the scan tool.
5. Start the engine again and carry out a road test to confirm that the problem has disappeared.

Refer to:
- Sensor Read Tests
- State Display Test Mode
- Actuator Tests

CAUTIONS: If in the following condition, access the SPECIAL FUNCTION screen to reset the IAC.
- The throttle body or Idle Air Control (IAC) motor has been replaced.
- The IAC motor related circuit has been opened during engine running or IAC motor operation test.