Toyota RAV4 Service Manual: Check and replace ecu
Notice:
- The connector should not be disconnected from the ecu. Perform the inspection from the backside of the connector on the wire harness side.
- When no measuring condition is specified, perform the inspection with the engine stopped and the ignition switch on.
- Check that the connectors are fully seated. Check for loose, corroded or broken wires.
- First, check the ecu ground circuit. If it is faulty,
repair it. If it is normal, the ecu could be faulty.
Temporarily replace the ecu with a normally functioning one and check if the problem symptoms occur. If the problem symptoms disappear, replace the original ecu.
- Measure the resistance between the ecu
ground terminal and body ground.
Standard resistance: Below 1 ù
- Disconnect the ecu connector. Check the ground terminal on the ecu side and wire harness side for bending, corrosion or foreign matter. Lastly, check the contact pressure of the female terminals.
Check for short circuit
If the wire harness is ground shorted (fig. 5), Locate
the section by conducting a resistance check with
the body ground (below).
Check the resistance with the body ground.
Disconne ...
Terms
...
Other materials:
Turning the high beam on/off manually
Switching to low beam
Pull the lever to original position.
Switching to high beam
Turn the light switch to
position.
The automatic high beam indicator
will turn off and the high
beam indicator will turn on.
The automatic high beam can be operated when
Vehicles without a smart ke ...
Back-up light circuit
Description
The park / neutral position switch turns on when the shift lever is moved
into the r position, causing the
back-up lights to illuminate.
Wiring diagram
Inspection procedure
Inspect fuse (gauge1)
Remove the gauge1 fuse from the instrument panel
junction block.
Meas ...
Reassembly
Install piston
Using a small screwdriver, install a new snap ring
onto one end of the piston pin hole.
Hint:
Make sure that the end gap of the snap ring is not
aligned with the pin hole cutout portion of the piston.
Gradually heat the piston up to 80 to 90°c (176 to
194°f ...