Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / ABS with EBD system / Open/B+ short circuit in abs motor relay
circuit / Inspection procedure
Toyota Corolla (E120): 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 motor relay)
- Check the operation sound of the abs motor individually when operaing it
with the hand–held tester.
Ok: the operation sound of the abs motor should be heard.


2 Inspect skid control ecu connector(+bm terminal voltage)

- Disconnect the skid control ecu connector.
- measure the voltage between terminals +bm (24) and
gnd (1, 23) of skid control ecu harness side connector.
Voltage: 10 – 14 v


3 Inspect fuse(abs no.2 Fuse)

- Remove abs no.2 Fuse from the engine room r/b.
- check continuity of abs no.2 Fuse.
Ok: continuity


4 Inspect skid control ecu connector(gnd terminal continuity)

- Measure resistance between terminal gnd (1,23) of skid
control ecu harness side connector and body ground.
Resistance: 1 Ω or less


Check and replace brake actuator assy
Other materials:
Inspection procedure
Hint:
hand–held tester only:
narrowing down the trouble area is possible by performing ”a/f control” active
test (heated oxygen
sensor or other trouble areas can be distinguished).
perform active test using hand–held tester (a/f control).
Hint:
”a/f control” is the act ...
Battery
Check the battery as follows.
■ Battery exterior
Make sure that the battery terminals are not corroded and that there are no
loose connections, cracks, or loose clamps.
1 Terminals
2 Hold-down clamp
■Before recharging
When recharging, the battery produces hydrogen gas which is ...
Check mode procedure
1. Dtc check (check mode)
Hint:
hand–held tester only:
compared to the normal mode, the check mode has more sensing
ability to detect malfunctions. Furthermore, the same diagnostic
items which are detected in the normal mode can also be
detected in the check mode.
Procedure for check m ...


