Toyota RAV4 (XA40) 2013-2018 Service Manual: Abs warning light remains on
Description
If any of the following conditions are detected, the abs warning light remains on:
- The ecu connectors are disconnected from the skid control ecu.
- There is a malfunction in the skid control ecu internal circuit.
- There is an open or short in the wire harness between the combination meter and the skid control ecu.
Hint:
The intelligent tester may not be used when there is a malfunction in the skid control ecu.
Wiring diagram
Inspection procedure
- Check can communication system
- Check if the can communication system dtc is output (see page ca-34).
Result 
- Inspect skid control ecu connector
- Check if the skid control ecu connector is properly installed.
Ok: the skid control ecu connector is properly installed.
- Check wire harness (skid control ecu - battery and body ground)
- Disconnect the a19 ecu connector.
- Measure the resistance of the wire harness side connector.
Standard resistance 
- Measure the voltage of the wire harness side connector.
Standard voltage 
- Perform active test by intelligent tester (abs warning light)
- Select the active test, generate a control command, and then check that the abs warning light operates.
Ok: the abs warning light is turned on or off.
Hint:
When the abs warning light remains illuminated, opens in the wire harness of the combination meters or abnormalities in the meter circuit should be considered.
Replace abs and traction actuator assembly
Control module communication bus off
Description
Inspection procedure
The skid control ecu inputs the signals from the ecm, steering angle sensor,
and yaw rate and
acceleration sensor via can communication system.
Ch ...
Abs warning light does not come on
Wiring diagram
Refer to the abs warning light circuit (see page bc-135).
Inspection procedure
Check can communication system
Check if the can communication system dtc is output
(see page ...
Other materials:
Drl relay circuit
Description
The main body ecu controls the daytime running light no. 2 Relay (marking:
drl no.2).
Wiring diagram
Inspection procedure
Inspect daytime running light relay (marking: drl no. 2, Drl no. 3,
Drl no. 4)
Remove the no. 2 Relay, no. 3 Relay and no. 4 Relay from
th ...
Making a call
Once a bluetooth® phone is registered, you can make a call
using the following procedure:
Dialing
Display the phone screen.
Select the “dial pad” tab and enter a phone number.
To delete the input phone number, select
.
For the first digit, you can enter
by selecting &nb ...
Using the steering wheel audio switches
Some audio features can be controlled using the switches on
the steering wheel.
Operation may differ depending on the type of audio system or
navigation system. For details, refer to the manual provided with
the audio system or navigation system.
Volume
Radio mode:
selects a radio stat ...
