Without Scan Tool
DIAGNOSTIC TROUBLE CODE CHECK
HINT: If a malfunction occurs in the vehicle 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 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 to ON.
2. Using SST, connect terminals Tc and E1 of DLC2. SST 09843-18020
3. Read the diagnostic trouble code on the CRUISE MAIN indicator light.
HINT: If the diagnostic trouble code is not output, inspect the diagnosis circuit.
As an example, the blinking patterns for codes; normal, 11 and 21 are shown in the illustration.
4. Check for the problem using the diagnostic trouble code table.
5. After completing the check, disconnect terminals Tc and E1, and turn off the display.