Toyota RAV4 manuals

Toyota RAV4 Service Manual: Ecu power source circuit

Description

This is the power source for the tire pressure warning ecu.

Wiring diagram

Toyota RAV4. Wiring diagram


Inspection procedure

Notice:

It is necessary to register an id code after replacing the tire pressure monitor valve and/or the tire pressure warning ecu (see page tw-9).

  1. Inspect fuse (ecu-ig1)

  1. Remove the ecu-ig1 fuse from the instrument panel junction block.
  2. Measure the resistance of the fuse.

Standard resistance: below 1




  1. Inspect ig1 relay

Toyota RAV4. Inspect ig1 relay


  1. Remove the ig1 relay from the instrument panel junction block.
  2. Measure the resistance of the relay.

Standard resistance




  1. Inspect wire harness (ecu - battery and body ground)

Toyota RAV4. Inspect wire harness (ecu - battery and body ground)


  1. Disconnect the e56 ecu connector.
  2. Measure the voltage of the wire harness side connector.

Standard voltage


  1. Measure the resistance of the wire harness side connector.

Standard resistance




Proceed to next circuit inspection shown in problem symptoms table

Tire pressure warning light circuit
Description If the tire pressure warning ecu detects trouble, the tire pressure warning light turns on and tire pressure monitor is canceled at the same time. At this time, the ecu records a dtc i ...

Tire pressure warning receiver (w/ antenna)
Components ...

Other materials:

Front fog light circuit
Description The main body ecu controls the front fog light relay (marking: fr fog) when a signal is received from the headlight dimmer switch. Wiring diagram Inspection procedure Perform active test by intelligent tester Connect the intelligent tester (with can vim) to the dlc3 ...

Tire inflation pressure
Tire inflation pressure The recommended cold tire inflation pressure and tire size are displayed on the tire and loading information label. Inspection and adjustment procedure Tire valve Tire pressure gauge Remove the tire valve cap. Press the tip of the tire pressure gaug ...

Display settings
Settings are available for adjusting the contrast and brightness of the screen. Screen for display settings Press the “setup” button. Select “display” on the “setup” screen. Adjust the screen display Adjust the camera display* Changes to day mode. *: If equipped ...

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