Toyota Tacoma manuals

Toyota Corolla Repair Manual: Inspection procedure

1 Reconfirm dtc

  1. Check the dtc

2 Inspect skid control ecu connector securely connected

2 Inspect skid control ecu connector securely connected

3 Inspect skid control ecu connector(ig1 terminal voltage)

3 Inspect skid control ecu connector(ig1 terminal voltage)

In case of using handheld tester:

  1.  check the voltage condition output from the ecu displayed on the handheld tester.

    Ok: normal is displayed.

In case of not using handheld tester:

In case of not using handheld tester:

  1.  disconnect the skid control ecu connector.
  2.  turn the ignition switch to on.
  3. measure voltage between terminals ig1 (3) and gnd (1, 23) of skid control ecu harness side connector.

    Ok: oltage: 10 14 v

4 Inspect skid control ecu connector(gnd terminal continuity)

4 Inspect skid control ecu connector(gnd terminal continuity)

  1. Measure resistance between terminal gnd (s12, 24) of skid control ecu harness side connector and body ground.

    Resistance: 1 Ω or less

Check and repair harness and connector

Check and repair harness and connector

5 Go to combination meter system(abs warning light)

  1. Disconnect the skid control ecu connector.
  2.  using service wire, connect terminals wa (30) and gnd (1, 23) of skid control ecu harness side connector.
  3.  turn the ignition switch to on.

    Ok: abs warning light goes off.

Check and replace brake actuator assy

Check and replace brake actuator assy

Circuit description
Hint: there is a case that handheld tester cannot be used when ecu is abnormal. Wiring diagram ...

Abs warning light circuit (does not light up)
...

Other materials:

Circuit description
When the ignition switch is turned on, battery positive voltage is applied to the coilwhich closes the contacts of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm. This signal causes current to flow to the coil, closing the contacts of the efi relay and supplyin ...

Basic inspection
Resistance measuring condition of electronic parts  unless stated, all resistance is measured at an ambient temperature of 20 c (68 F). As the resistance may be outside the specifications if measured at high temperatures immediately after the vehicle has been running, measur ...

Trip information
■ Switching the display Items displayed can be switched by pressing the display change button. ■ Odometer Displays the total distance the vehicle has been driven. ■ Trip meter A/trip meter B Displays the distance the vehicle has been driven since the meter was last reset. ...

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