DTC 25

Codes 25 & 26: TRAC Sub-Throttle Valve, DTC Chart:

[P] Remove the Air Cleaner duct.

Open And Close The Sub-Throttle Valve Manually:

[C] Open and close the Sub-Throttle Valve manually and check the condition during operation.

[OK] The valve should operate smoothly without catching.

NOTE: If Sub-Throttle actuator, Sub-Throttle Valve and Sub-Throttle Position Sensor and Sub-Throttle Position Sensor circuit are free from any mechanical defect, the ECM may be defective.
If ECM is free from any defect, TRAC ECU may be defective.