Toyota RAV4 (XA40) 2013-2018 Service Manual: Downhill assist control indicator light remains on
Description
When the downhill assist control switch is pushed on, the downhill assist control function is available and the downhill assist control indicator light illuminates.
Hint:
Even if the downhill assist control switch is pressed, the downhill assist control indicator light will blink and downhill assist control will not be activated under the following conditions:
- Gear position is not l or r.
- The system is malfunctioning.
- Temperature of the hydraulic brake booster increases and downhill assist control is temporarily canceled.
- The vehicle speed is 25 km/h (15 mph) or more.
Wiring diagram
Inspection procedure
Check can communication system
- Check if the can communication system dtc is output (see page ca-34).
Result 
- Check skid control ecu connector
- Check if the skid control ecu connector is securely connected.
Ok: the connector is securely connected.
- Check wire harness (skid control ecu - body ground)
- Disconnect the a19 ecu connector.
- Measure the resistance of the wire harness side connector.
Standard resistance 
- Inspect downhill assist control switch
- Remove the downhill assist control switch.
- Measure the resistance of the switch.
Standard resistance 
- Check wire harness (control switch - skid control ecu and body ground)
- Disconnect the a19 ecu connector.
- Disconnect the e31 switch connector.
- Measure the resistance of the wire harness side connectors.
Standard resistance 
- Check combination meter
- Check the combination meter (see page me-15).
Replace abs and traction actuator assemb
ly
Slip indicator light does not come on
Description
Refer to the description of "slip indicator light remains on" (see page
bc-152).
Wiring diagram
Refer to the slip indicator light circuit (see page bc-152).
Inspection proc ...
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 circu ...
Other materials:
Data list / active test
Read data list
Hint:
Using the intelligent tester's data list allows switch,
sensor, actuator and other item values to be read without
removing any parts. Reading the data list early in
troubleshooting is one way to save time.
Connect the intelligent tester (with can vim) to the
...
Hood
Release the lock from the inside of the vehicle to open the hood
Pull the hood lock release lever.
The hood will pop up slightly.
Push the auxiliary catch lever to
the left and lift the hood.
Hold the hood open by inserting
the supporting rod into the slot.
Cautio ...
Precaution
Notice:
Perform the reset memory procedures (a/t
initialization) when replacing the automatic transaxle
assembly, engine assembly or ecm (see page ax-18).
Hint:
Reset memory cannot be completed by only reconnecting
the cable to the negative (-) battery terminal.
Caution:
When using compresse ...
