Toyota Corolla Repair Manual: Inspection procedure
1 Input signal check
- See input signal check on page 05–745.
- check the indicator light operation when each of the set/
coast, resume/accel and cancel is turned on.
Ok: set/coast, resume/accel switch: the signals shown in the table on the left should be output when each switch is on. The signal should disappear when the switch is turned off.
Cancel switch: the indicator light goes off when the cancel switch is turned on.
2 Inspect terminal voltage(ccs)
- Remove the cruise control ecu assy with the connector being connected.
- turn the ignition switch to on.
- measure the voltage between terminals 11 (ccs) of the
cruise control ecu assy connector and the body ground
when each control switch is operated.
Ok:
3 Inspect cruise control main switch assy
- Remove the steering wheel center pad .
- disconnect the control switch assy connector.
- check continuity between terminals 2 (ccs) and 3 (ecc)
of control switch assy connector when cruise control main
switch assy is held on and off.
Ok:
4 Check harness and connector(between cruise control main switch assy and body ground)
- Check for open and short circuit in harness and connector between cruise control main switch assy and body ground
5 Check harness and connector(between cruise control ecu assy and cruise control main switch assy)
- Check for open and short circuit in harness and connector between cruise control ecu assy and cruise control main switch assy
6 Input signal check(see step 1)
Check and replace cruise control ecu assy
Circuit description
This circuit carries the set/coast, res/acc and cancel signals (each voltage)
to the cruise control ecu
assy.
Wiring diagram
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Other materials:
Inside vehicle
General maintenance
Performing these maintenance checks on the vehicle in the owner’s
responsibility. The owner may
perform the maintenance or take the vehicle to a service center.
Check the parts of the vehicle described below on a daily basis. In most cases,
special tool are not
required ...
How to proceed with troubleshooting
1 Vehicle brought in
2 Customer problem analysis check and symptom check
3 Problem symptoms table
Without applicable symptoms, proceed to ”a”
with applicable symptoms, proceed to ”b”
4 Perform troubleshooting in the following method, depending on
malfunction symptom
Ter ...
Uniform Tire Quality Grading
This information has been prepared in accordance with regulations issued by the
National Highway Traffic Safety Administration of the U.S. Department of Transportation.
It provides the purchasers and/or prospective purchasers of Toyota vehicles with
information on uniform tire quality grading.
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