Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Cruise control system / Stop light switch circuit / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Check operation(stop lamp swtich assy)
- Check that the stop light comes on when the brake pedal is depressed, and turns off when the brake pedal is released.
2 Input signal check
- See input signal check on page 05–745.
- check the indicator light when the brake pedal is depressed.
Ok: the indicator light goes off when the brake pedal is depressed.
3 Inspect terminal voltage(stp–)
- Remove the cruise control ecu assy with connectors still connected.
- turn the ignition switch to on.
- measure voltage between terminal 3 (stp–) of cruise
control ecu assy connector and body ground, when the
brake pedal is depressed and released.
Ok:
4 Check harness and connector(between cruise control ecu assy and stop lamp switch assy)
- Check for open and short circuit in harness and connector between cruise control ecu assy and stop lamp switch assy
Check and replace cruise control ecu assy
Other materials:
Rear wheel alignment
Inspection
1. Inspect tire
2. Measure vehicle height
Notice:
before inspecting the wheel alignment, adjust the vehicle height to the
specified value.
3. Inspect toe–in
Toe–in:
usa, canada:
Mexico:
If the toe–in is not within the specified value, inspect and replace
the susp ...
Circuit description
While driving uphill with cruise control activated, in order to minimize gear
shifting and provide smooth cruising
overdrive may be prohibited temporarily under some conditions.
The cruise control ecu sends o/d cut signals to the ecm as necessary and the ecm
cancels overdrive
shifting until ...
Inspection procedure
1 Check d squib circuit(airbag sensor assy center – horn button
assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the horn button assy
and the airbag sensor assy center.
for the oran ...