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:

Reassembly (2005/11-2006/01)
Install front drive shaft bearing Using sst and a press, press in the drive shaft bearing to the inboard joint rh. Sst 09527-10011, 09710-04081 Notice: The bearing should be installed completely. Using a snap ring expander, install a new drive shaft hole snap ring. ...

Air inlet control servo motor
Components Removal Remove blower assembly Remove the blower (see page ac-203). Remove air inlet control servo motor (see page ac-210) Inspection Inspect air inlet control servo motor (for automatic air conditioning system) Inspect the servo motor operation. ...

Short in can bus lines
Description There may be a short circuit between the can bus lines when the resistance between terminals 6 (canh) and 14 (canl) of the dlc3 is below 54 . Wiring diagram Inspection procedure Notice: Turn the ignition switch off before measuring the resistances of the main ...

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