Toyota Tacoma manuals

Toyota Corolla Repair Manual: Inspection procedure

1 Check ignition or starter switch assy

  1. Check the ignition switch, as shown in the illustration and table.

Standard:

2 Check fuse (ecub)

2 Check fuse (ecub)

  1. Remove the fuse from the instrument panel j/b.
  2.  check the continuity of the fuse.

Standard: continuity

3 Check relay (marking: ig1)

3 Check relay (marking: ig1)

  1. Remove the relay from the instrument j/b.
  2.  inspect the relay continuity, as shown in the illustration and table.

Standard:

4 Check tvip ecu

4 Check tvip ecu

  1. Disconnect the tvip ecu connector.
  2.  turn the ignition switch on.
  3.  measure the voltage between the terminal of the ecu connector and the body ground, as shown in the illustration and table.

Standard:

Check and replace tvip ecu

Check and replace tvip ecu

Circuit description
If the ignition switch is turned to the on position, battery positive voltage is applied to the switches, such as terminal ig of the ecu. Wiring diagram ...

Horn relay circuit
...

Other materials:

Precheck
1. Diagnosis check Starting diagnosis mode (service check mode)  turn off the audio system and turn the ig switch to acc. While pressing the preset switches 1 and 6 at the same time, press cd 3 times. Reference: beep sound is given 3 times and the system enters ...

Inspection procedure
1 Check security indicator light Remove the security indicator.  check the indicator light, as shown in the illustration and table. Standard: 2 Check wire harness (tvip ecu  security indicator) Disconnect the tvip ecu and security indicator connectors.   ...

Canceling and resuming the constant speed control
1 Pulling the lever toward you cancels the constant speed control. The speed setting is also canceled when the brakes are applied or the clutch pedal (manual transmission) is depressed. 2 Pushing the lever up resumes the constant speed control. Resuming is available when the vehicle speed is mo ...

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