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:

Inspection procedure
Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...

Inspection procedure
Hint: handheld 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 handheld tester (a/f control). Hint: a/f control is the active test which cha ...

How to proceed with troubleshooting
1 Vehicle brought to workshop 2 Customer problem analysis 3 Check and clear dtcs and freeze frame data 4 Problem symptom confirmation Symptom does not occur: go to step 5 Symptom occurs: go to step 6 5 Symptom simulation 6 Dtc check There is no output: go to step 7 There is outp ...

2011-2020 Copyright www.tcorolla.net