Toyota RAV4 (XA40) 2013-2018 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
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Other materials:
Throttle actuator control motor circuit
Description
The throttle actuator is operated by the ecm and opens and closes the
throttle valve using gears.
The opening angle of the throttle valve is detected by the throttle position (tp)
sensor, which is mounted
on the throttle body. The tp sensor provides feedback to the ecm. This ...
Opening and closing procedures
The power windows can be opened and closed using the switches.
Operating the switch moves the windows as follows:
Closing
One-touch closing (driver’s window
only) (if equipped)*
Opening
One-touch opening (driver’s
window only)*
*: To stop the window partway, operate
the ...
Short in front driver side - side squib circuit
Description
The driver side - side squib circuit consists of the center airbag sensor and
the front seat side airbag lh.
This circuit instructs the srs to deploy when the deployment conditions are met.
These dtcs are recorded when a malfunction is detected in the driver side - side
sq ...
