Toyota Corolla Repair Manual: 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
Circuit description
The abs motor relay supplies power to the abs pump motor. While the abs is
activated, the ecu switches
the motor relay on and operates the abs pump motor.
Wiring diagram
...
Open/Short circuit in abs solenoid relay
circuit
Dtc c0278/11 open circuit in abs solenoid relay
circuit
Dtc c0279/12 short circuit in abs solenoid relay
circuit ...
Other materials:
Circuit description
1 Check p squib circuit(airbag sensor assy center – instrument
panel passenger airbag assy)
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 instrument panel pas ...
Inspection procedure
1 Check harness and connector(transmission control switch –
body ground)
Disconnect the transmission control switch connector of
shift lever assy.
measure the resistance according to the value(s) in the
table below.
Standard:
2 Inspect transmission control switch
Mea ...
Road test
1. Problem symptom confirmation
Taking into consideration the results of the customer problem analysis,
try to reproduce the symptoms
of the trouble. If the problem is that the transaxle does not shift up,
shift down, or the shift point is too
high or too low conduct the following road ...