Displaying & Reading Trouble Codes

Extracting Diagnostic Trouble Codes

Indicator Check

1. Turn the ignition switch to 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.

Note: If the indicator check result is not normal, proceed to troubleshooting for the combination meter section.


Diagnostic Trouble Code Check






Note: If a malfunction occurs in the speed sensors or actuator, etc. during cruise control driving, the ECU actuates AUTO CANCEL of the cruise control and blinks the CRUISE MAIN indicator light 5 times to inform the driver of a malfunction. At the same time, the malfunction is stored in memory as a diagnostic trouble code.

Output of Diagnostic Trouble Code

1. Turn the ignition switch ON.






2. Using SST, connect terminals Tc and E, of DLC2. SST 09843-18020.






3. Read the diagnostic trouble code on the CRUISE MAIN indicator light. As an example, the blinking patterns for codes; normal, 11 and 21 are shown in the illustration.

Note: If the diagnostic trouble code is not output, inspect the Tc circuit.

4. Check for the problem using the Fault Code Descriptions.
5. After completing the check, disconnect terminals Tc and Ei, and turn off the display.