Toyota Tacoma manuals

Toyota Corolla Repair Manual: Ecu power source circuit

Circuit description

This circuit provides power to operate the tvip ecu.

Wiring diagram

Inspection procedure

Inspection procedure

1 Check fuse (ecub)

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

Standard: continuity

2 Check tvip ecu

2 Check tvip ecu

  1. Disconnect the tvip ecu connector.
  2.  measure the voltage between the terminals of the ecu connector, as shown in the illustration and table.

Standard:

3 Check wire harness (tvip ecu  body ground)

3 Check wire harness (tvip ecu  body ground)

  1. Disconnect the tvip ecu connector.
  2. check the connector on the harness side, as shown in the illustration and table.

Standard:

Check and replace tvip ecu

Check and replace tvip ecu

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& ...

Ignition switch circuit
...

Other materials:

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Carry out the following procedures if the tires spin or the vehicle becomes stuck in mud, dirt or snow: 1 Stop the engine. Set the parking brake and shift the shift lever to P (automatic transmission or continuously variable transmission) or N (manual transmission). 2 Remove the mud, snow or s ...

Circuit description
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Circuit description
The side airbag sensor assy (lh) circuit consists of the diagnosis circuit and lateral deceleration sensor, etc. It receives signals from the lateral deceleration sensor, judges whether or not the srs must be activated, and detects diagnosis system malfunction. Dtc b1141/33 is recorded wh ...

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