Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Cruise control system / Diagnosis circuit / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Inspect dlc3 terminal voltage
- Turn the ignition switch to on.
- measure voltage between terminals 13 (tc) and 4 (cg) of
dlc3.
Ok: voltage: 10 – 16 v
2 Check harness and connector(between cruise control ecu assy and dlc3)
- Check for open and short circuit in harness and connector between cruise control ecu assy and dlc3
Check and replace cruise control ecu assy
Other materials:
Engine rear oil seal
Replacement
1. Remove manual transaxle assy (m/t transaxle)
2. Remove automatic transaxle assy (a/t transaxle)
3. Remove clutch cover assy (m/t transaxle)
remove the 6 bolts and clutch cover.
4. Remove clutch disc assy (m/t transaxle)
5. Remove flywheel sub–assy (m/t transaxle ...
Inspection procedure
Hint:
start the inspection from step 1 in case of using the hand–held tester and start
from step 2 in case of not
using the hand–held tester.
1 Perform active test by hand–held tester(abs warning light)
Check that ”on” and ”off” of the abs warning light can be shown on the
...
Circuit description
The ignition switch provides circuit power and the ecm provides the circuit
ground that illuminates the mil.
Mil operation is checked visually:
it should be illuminated when the ignition is first turned on. If the mil is off
all of the time or on all of the time,
use the procedure below to ...