Reading and Clearing Diagnostic Trouble Codes

DIAGNOSIS FUNCTION





1. N (Neutral) range light
The N range light flashes at a frequency of approximately 1 Hz (once per second) if there is an abnormality in any of the items in the table which are related to the A/T system. Note that the N range light will flash only when the shift lever position is at the advance range (D, 3, 2 or L). Check for diagnostic trouble codes if the N range light is flashing at a frequency of approximately 1 Hz.





N range light flashing items

CAUTION: If the N range light is flashing at a frequency of approximately 2 Hz (two flashes per second), it means that the automatic transmission fluid temperature is too high. Stop the vehicle in a safe place and wait until the N range light switches off.

2. Method of reading the diagnostic trouble code
Use the Scan tool (MUT-II) or the N range light to take a reading of the diagnostic trouble codes.