Toyota RAV4 Service Manual: Front fog light circuit
Description
The main body ecu controls the front fog light relay (marking: fr fog) when a
signal is received from
the headlight dimmer switch.
Wiring diagram
Inspection procedure
- Perform active test by intelligent tester
- Connect the intelligent tester (with can vim) to the
dlc3.
- Turn the ignition switch to the on position and press the
intelligent tester main switch on.
- Select the item below in the active test and then
check the relay operation.
Ok:
front fog light comes on.
- Check taillight
- Check that the taillight comes on when the light control
switch is on (tail).
Ok:
taillight comes on.
- Inspect fuse (fr fog)
- Remove the fr fog fuse from the instrument panel
junction block.
- Measure the resistance of the fuses.
Standard resistance:
below 1
- Inspect fog light bulb
- Remove the fog light bulb.
- Connect the positive (+) lead from the battery to terminal
2 and the negative (-) lead to terminal 1, then check that
the bulb illuminates.
Ok:
bulb illuminates.
- Inspect front fog light relay (marking: fr fog)
- Remove the front fog light relay from the no. 6 Relay
block.
- Measure the resistance of the relay.
Standard resistance
- Check wire harness (battery - main body ecu)
- Disconnect the e17 ecu connector.
- Measure the voltage of the wire harness side connector.
Standard voltage
- Check wire harness (front fog light relay - battery)
- Remove the front fog light relay from the no. 6 Relay
block.
- Measure the voltage of the relay block.
Standard voltage
- Check wire harness (front fog light relay - front fog light and body
ground)
- Remove the front fog light relay from the no. 6 Relay
block.
- Disconnect the a11 and a28 front fog light connectors.
- Measure the resistance of the wire harness side
connectors.
Standard resistance
Replace instrument panel junction block (main body ecu)
- Check wire harness (dimmer switch - main body ecu and body ground)
- Disconnect the e12 headlight dimmer switch connector.
- Disconnect the e17 main body ecu connector.
- Measure the resistance of the wire harness side
connectors.
Standard resistance
- Inspect fog light switch
- Remove the headlight dimmer switch.
- Measure the resistance of the switch.
Standard resistance
Repair or replace harness and connector (headlight dimmer switch - body
ground)
Description
The body ecu controls the headlight relay, no. 2 Daytime running light relay
(marking: drl no. 2) And
no. 4 Daytime running light relay (marking: drl no. 4).
Wiring diagram
I ...
Description
The turn signal flasher relay (marking: flsh) in the main body ecu turns on
when it receives signals
from the headlight dimmer switch integrated with the turn signal switch, causing
...
Other materials:
System diagram
System diagram (2005/11-2006/01)
System diagram (2006/01- )
...
Spiral cable
Components
Removal
Caution:
Be sure to read the precautionary notices concerning the
srs airbag system before servicing it (see page rs-1).
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery ...
Installation
Hint:
Use the same procedures for the rh side and lh side.
The procedures listed below are for the lh side.
When replacing the clip, heat the clip and body using a
heat light.
Standard heating temperature
Notice:
Do not heat the clip and vehicle body excessively.
Replace roof dri ...