Downhill assist control indicator light does not come on

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

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

1. 1
   Check can communication system
2. 2
   Check if the can communication system dtc is output (see page ca-34)

Result

1. 1
   Read value of intelligent tester (downhill assist control switch)
2. 2
   Check the data list for proper functioning of the downhill assist control switch.

   

1. 1
   Perform active test by intelligent tester (dac indicator light)
2. 2
   Select the active test, generate a control command, and then check that the downhill assist control indicator light operates.

   

1. 1
   Inspect combination meter
2. 2
   Inspect the combination meter (see page me-15).

   

   

1. 1
   Inspect downhill assist control switch
2. 2
   Remove the downhill assist control switch.
3. 3
   Measure the resistance of the switch.

Standard resistance

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

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

Standard resistance