Indicator Check

DIAGNOSIS SYSTEM




a. Check the indicator.

1. Turn the ignition switch ON.
2. Check that the CRUISE main indicator light comes on when the cruise control main switch is turned ON, and that the indicator light goes off when the main switch is turned OFF.

HINT: If the indicator check result is not normal, proceed to a troubleshooting of the combination meter.




b. Check the DTC.

HINT: If a malfunction has occured in the No.1 vehicle speed sensor or actuator, etc. during the cruise control driving, the ECU actuates AUTO CANCEL of the cruise control and turns on and off the CRUISE main indicator light to inform the driver of a malfunction. At the same time, the malfunction is stored in the memory as a DTC.




c. Using diagnosis check wire, check the output of the DTC.

1. Turn the ignition switch ON.
2. Using SST, connect terminals Tc and E1 of the DLC1.
SST 09843-18020

3. Read the DTC on the CRUISE MAIN indicator light.






HINT:
- If a DTC is not output, inspect the diagnosis circuit.
- As an example, the blinking patterns for codes; normal, 12 and 21 are shown in the illustration.