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:
Problem symptoms table
Hint:
proceed with troubleshooting of each circuit in the table below.
Symptom
Suspect area
When the ignition switch is in the on position, the srs warning
light sometimes comes on after approximately 6 seconds.
Srs warning light ci ...
Replacement
1. Work for preventing gasoline from spilling out
2. Remove cylinder head cover no.2
Remove the 2 nuts, 2 clips and cylinder head cover.
3. Disconnect ventilation hose
Disconnect the ventilation hose from the cylinder head
cover.
4. Disconnect engine wire
Disconnect ...
Inspection procedure
1 Check side squib(rh) circuit(airbag sensor assy center – front
seat airbag assy rh)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the front seat airbag assy ...