Trouble Diagnosis
[2] TROUBLE DIAGNOSISIf the trouble display shows that there is an abnormality in the MD-TICS system, carry out trouble diagnosis according to the following procedure.
1. TURN THE DIAGNOSTIC SWITCH OFF.
2. IGNITION KEY SWITCH
1. OFF -> ON: Do not run the engine.
2. After cranking, stop the engine.
With the ignition key switch ON.
3. Run the engine.
Carry out diagnosis under the above three conditions.
NOTE:
The reason for using these three positions of the ignition key switch is to allow diagnosis to be carries out under all three conditions so that all troubles can be located.
Refer to Diagnosis Display Code and Trouble Location table.
3. DISPLAY OF RESULT OF TROUBLE DIAGNOSIS
The result of the trouble diagnosis is displayed by the flashing (Diagnosis Display Code) of the diagnosis light (Engine Control warning light and Overheat warning light)
NOTE: This is called the "Dealer mode". The dealer mode is displayed when the diagnostic switch is OFF (released).
NOTE (*):
- The diagnostic memory of the control unit has a memory that stores the past trouble conditions, and displays them. When the diagnostic switch is released, it does not show the engine overheating condition; instead of this, it displays the results of diagnosis of past troubles.
- If the trouble that occurred in the past is the same as the trouble that is occurring at the present, only the present condition (Engine Control warning light) is displayed.
Diagnosis Display Code and Location of Trouble
Explanation of Diagnosis Display Code
Actual Display Method for Diagnosis Display Code
The diagnosis light displays the diagnosis continuously as follows.
Example: Compound trouble (1-2 and 1-3 occur together)
After displaying 1-2 three times, 1-3 is displayed three times. After this, 1-2 and 1-3 are displayed three times each in turn.