Trouble Code Diagnostic Mode
- Locate Total Diagnostic Communication Link (TDCL) under left side of instrument cluster. See Figure. Connect a jumper wire between TDCL terminals No. 3 and 4. Read diagnostic codes by observing cruise control indicator light on instrument cluster. Codes are displayed from lowest (11) to highest (41).
- If codes are present, use trouble code diagnostic mode test procedures chart to test system. See Figure. If no codes are present, enter input signal diagnostic mode.
- To exit trouble code diagnostic mode, remove jumper wire from TDCL connector. Trouble codes are cleared from ECU memory when ignition (battery power) is cut off.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002