Toyota RAV4 manuals

Toyota RAV4 Service Manual: Ig power source circuit

Description

This is the main power source supplied to the air conditioning amplifier when the ignition switch is on.

This power source is used for operating components, such as the air conditioning amplifier and servo motors.

Wiring diagram

Toyota RAV4. Ig power source circuit


Inspection procedure

  1. Inspect fuse (ecu-ig2)

  1. Remove the ecu-ig2 fuse from the instrument panel junction block.
  2. Measure the resistance of the fuse.

Standard resistance: below 1




  1. Check wire harness (air conditioning amplifier - battery)

Toyota RAV4. Check wire harness (air conditioning amplifier - battery)


  1. Disconnect the e36 amplifier connector.
  2. Measure the voltage of the wire harness side connector.

Standard voltage




  1. Check wire harness (air conditioning amplifier - body ground)

Toyota RAV4. Check wire harness (air conditioning amplifier - body ground)


  1. Disconnect the e36 amplifier connector.
  2. Measure the resistance of the wire harness side connector.

Standard resistance




Proceed to next circuit inspection shown in problem symptoms table

Compressor circuit
Description When the a/c switch is turned on, the magnetic clutch on signal is sent from the air conditioning amplifier. Then the mg clt relay turns on to operate the magnetic clutch. Wiring diag ...

Refrigerant
...

Other materials:

Inspection
Inspect starter assembly Notice: These tests must be performed within 3 to 5 seconds to avoid burning out the coil. Perform the pull-in test. Disconnect the lead wire from terminal c. Connect the battery to the magnetic switch as shown in the illustration. Check that the clutch ...

Light control switch circuit
Description This circuit detects the state of the headlight dimmer switch. Wiring diagram Inspection procedure Read value of intelligent tester (main body ecu) Connect the intelligent tester to the dlc3. Turn the ignition switch on and press the intelligent tester main switch on ...

Oxygen (a/f) sensor signal stuck
Hint: Although the dtc titles say oxygen sensor, these dtcs relate to the air-fuel ratio (a/f) sensor. Sensor 1 refers to the sensor mounted in front of the three-way catalytic converter (twc) and located near the engine assembly. Description The a/f sensor generates a voltage* ...

В© 2011-2021 Copyright www.trav4.net