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:

Fuel system
Precaution Before working on fuel system Do not work near an open flame. Keep gasoline away from rubber and leather parts. Discharge the fuel pressure before disconnecting the fuel line to prevent gasoline from spilling out. Refer to the following procedure. Discharge fuel ...

Reassembly
Install front oil pump oil seal Using sst and a hammer, install a new oil seal to the pump. Sst 09350-32014 (09351-32140) Hint: The seal end should be flat with the outer edge of the oil pump. Coat the lip of the oil seal with petroleum jelly. Install front oil pump bo ...

Console box
Lift the lid while pulling up the lever to release the lock. When using the console box lid as an armrest (vehicles with slide function) Slide the console box lid forward as needed. Pull the lid forward by holding the front of the lid. Caution Console box adjustment precaution D ...

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