Step 8: Check The Auto-Cruise Control Switch
- Remove the auto-cruise control switch.
- Measure the resistance between the terminals when each of the SET, RESUME, CANCEL and MAIN switch is pressed. See Fig 1 and Fig 2 .
Do the measured values correspond?
- YES
Check that diagnostic trouble code 15 is not output. If diagnostic trouble code 15 is output, replace the auto-cruise control-ECU. Then check that diagnostic trouble code 15 is not output. - NO
Replace the auto-cruise control switch. Then check that diagnostic trouble code 15 is not output.