Toyota RAV4 Quiz
Tire and wheel

Ecu power source circuit

In this manual: Tire and wheel
Introduction — 37Interior — 12Exterior — 432Az-fe engine mechanical — 1552Az-fe ignition — 182Az-fe charging — 232Az-fe emission control — 82az-fe exhaust — 32Az-fe fuel — 72Az-fe lubrication — 4Brake — 17Brake control — 63U140f automatic transaxle — 59Instrument panel — 8Suspension — 18Drive shaft — 23Axle — 6Tire and wheel — 30Air conditioning — 93Lighting — 45Cruise control — 21Differential — 12Door lock — 31Engine immobiliser — 21Horn — 5Can communication — 27Mirror — 5Parking brake — 5Power steering — 27Propeller shaft — 3Seat — 29Seat belt — 27Sliding roof — 25Steering column — 6Wiper and washer — 11Supplemental restraint system — 95Other system — 5Maintenance — 14
7steps
~42min
2/5difficulty
Done 0 of 7
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)
  2. Remove the ecu-ig1 fuse from the instrument panel junction block.
  3. 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

Test yourself

A quick Toyota RAV4 quiz: every answer comes with an explanation and a link to the manual page.