Toyota RAV4 Service Manual: Downhill assist control indicator light does not come on

Description

Refer to the description of "downhill assist control indicator light remains on" (see page bc-156).

Wiring diagram

Refer to the downhill assist control indicator light circuit (see page bc-157).

Inspection procedure

1. Check can communication system

1. Check if the can communication system dtc is output (see page ca-34)

Result

2. Read value of intelligent tester (downhill assist control switch)

1. Check the data list for proper functioning of the downhill assist control switch.

Ok: on (downhill assist control switch is on) appears on the screen.

3. Perform active test by intelligent tester (dac indicator light)

1. Select the active test, generate a control command, and then check that the downhill assist control indicator light operates.

Ok: the downhill assist control indicator light turns on and off.

4. Inspect combination meter

1. Inspect the combination meter (see page me-15).

Replace abs and traction actuator assembly

5. Inspect downhill assist control switch

1. Remove the downhill assist control switch.
2. Measure the resistance of the switch.

Standard resistance

6. Check wire harness (control switch - skid control ecu and body ground)

1. Disconnect the a19 ecu connector.
2. Disconnect the e31 switch connector.
3. Measure the resistance of the wire harness side connectors.

Standard resistance

Replace abs and traction actuator assembly