Toyota RAV4 manuals

Toyota RAV4 (XA40) 2013-2018 Service Manual: 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 in memory.

Connect terminals tc and cg of the dlc3 to make the tire pressure warning light blink and output the dtc.

Wiring diagram

Toyota RAV4. Tire pressure warning light circuit


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 (gauge)

  1. Remove the gauge fuse from the instrument panel junction block.
  2. Measure the resistance of the fuse.

Standard resistance: below 1




  1. Check tire pressure warning light circuit

  1. Disconnect the e56 ecu connector.
  2. Using a service wire, connect e56-6 (ind) on the wire harness side and body ground.
  3. Turn the ignition switch on.
  4. Check that the tire pressure warning light turns on.

Toyota RAV4. Check tire pressure warning light circuit


Ok: tire pressure warning light turns on.



  1. Check wire harness (ecu - meter)

Toyota RAV4. Check wire harness (ecu - meter)


  1. Disconnect the e56 ecu connector.
  2. Disconnect the e19 meter connector.
  3. Measure the resistance of the wire harness side connectors.

Standard resistance




Proceed to next circuit inspection shown in problem symptoms table

Vehicle speed signal error (test mode dtc)
Description The tire pressure warning ecu receives a speed signal from the combination meter. This dtc is stored upon entering test mode, and cleared when a vehicle speed signal of 12 mph (20 ...

Ecu power source circuit
Description This is the power source for the tire pressure warning ecu. Wiring diagram Inspection procedure Notice: It is necessary to register an id code after replacing the tire pressure ...

Other materials:

Check for intermittent problems
Check for intermittent problems Hint: A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ecus can be detected by using the ecu data list function of an intelligent tester. Turn the ignition switch off and connect the intelligent test ...

The keys
The following keys are provided with the vehicle. Vehicles without a smart key system (type a) Master keys Operating the wireless remote control function Valet key Key number plate Vehicles without a smart key system (type b) Master keys Operating the wireless r ...

Steering angle sensor zero point malfunction
Description The skid control ecu learns the steering sensor zero point every time the ignition switch is turned on and the vehicle is driven at 35 km/h (22 mph) or more for approximately 5 seconds. The ecu also stores the previous zero point. If front wheel alignment or the steering wh ...

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