CHECK OF ELECTRONIC CONTROL COUPLING



SIMPLE OPERATION CHECK OF ELECTRONIC CONTROL COUPLING


1.Raise the vehicle.

2.Mark the front and rear tyres for easy identification of tyre rotation.
3.Adjust the parking brake lever to the normal conditions. (Refer to GROUP 36 - On-vehicle Service, Parking Brake Pedal Travel Check and Adjustment .)
4.Pull the parking brake pedal by two notches.
note Activating the parking brake slightly prevents the drive force transferring to the rear wheels by a friction in the electronic control coupling. If the following 2WD mode is checked without the parking brake activation, the drive force is transferred to the rear wheels by a friction in the electronic control coupling.
5.Start the engine, and move the shift lever into the D position (1st speed).
6.Depress the accelerator pedal gradually, and maintain the vehicle speed at approximately 10 km/h.
7.Switch the drive mode selector to the 2WD mode, and check that the rear wheels are under 2WD control. (At this time, the 4WD/LOCK indicators in the combination meter do not illuminate.)
8.Stop the engine.
9.Start the engine again, and move the shift lever into the D position (1st speed).
10.Depress the accelerator pedal gradually, and maintain the vehicle speed at approximately 10 km/h.
11.
caution The following checks in the 4WD mode must be completed within one minute in total to protect the 4WD drive system components and parking brake.
Switch the drive mode selector to the 4WD mode, and check that the rear wheels are rotating. (At this time, the 4WD indicator in the combination meter illuminates.)
After the above checks are completed, if the rear wheel rotation satisfies the above conditions, it is judged that the electronic control coupling operates correctly. If the rear wheel rotation does not satisfy the above conditions, replace the electronic control coupling. (Refer to .)

RESISTANCE MEASUREMENT BETWEEN ELECTRONIC CONTROL COUPLING SOLENOID CONNECTOR TERMINALS




Disconnect the D-113 connector, and measure the resistance value between the connector terminals on the electronic control coupling side. If the measured resistance value is out of the standard value range, replace the electronic control coupling. (Refer to .)
Standard value: 2.2 - 4.0 Ω