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)

1. 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)

1. Disconnect the skid control ecu connector.
2.  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)

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

   Ok: continuity

4 Inspect skid control ecu connector(gnd terminal continuity)

1. 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