Toyota RAV4 (XA40) 2013-2018 Service Manual: Diagnosis system
- Diagnosis
If the skid control ecu detects a malfunction, the abs, vsc and brake warning lights and the slip, downhill assist control and auto lsd indicator lights come on in accordance with the trouble area to warn the driver.
The table below indicates which lights come on when there are malfunctions in particular functions.
Light on
Light on (blinking)
Light off
Hint:
- *1: W/ downhill assist control
- *2: W/ hill-start assist control
- *3: For 2wd w/ auto lsd
- *4: W/ 16-inch disc
- The dtcs can be read by connecting sst (09843- 18040) between the tc and cg terminals of the dlc3 and observing the blinking pattern of the abs and vsc warning lights, or by using an intelligent tester (see page bc-47).
- This system has a sensor signal check function (see page bc-28).
- Check warning light and indicator light
- Release the parking brake lever.
Notice:
Before releasing the parking brake lever, set chocks to hold the vehicle for safety.
Hint:
When the parking brake is applied or the brake fluid level is low, the brake warning light comes on.
- When the ignition switch is turned on, check that the abs, vsc and brake warning lights and the slip, downhill assist control and auto lsd indicator lights come on and go off in about 3 seconds.
Hint:
If the warning lights do not illuminate, confirm whether the bulbs have burned out, and also check for can communication system dtcs, since the skid control ecu and combination meter are connected by the can communication line.
If the warning light remains on, perform relevant
troubleshooting procedures. The relevant
troubleshooting procedures are in the sections listed
in the table below.
Terminals of ecu
Skid control ecu
Hint:
*1: W/ 16-inch disc
*2: W/ downhill assist control
*3: For 2wd (w/ auto lsd)
Check skid control ecu
Disconnect the a19 ecu connector.
Measure the vo ...
Dtc check / clear
Check dtc (when using intelligent tester)
Connect the intelligent tester (with can vim) to the
dlc3.
Turn the ignition switch on.
Turn the tester on.
Read the dtcs by following the pr ...
Other materials:
Suspension system
Problem symptoms table
Hint:
Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms are
listed in order of probability in the "suspected area" column of
the table. Check each symptom by checking the suspected
areas in the order th ...
Engine immobilizer system
The vehicle's keys have
built-in transponder chips
that prevent the engine from
starting if a key has not
been previously registered
in the vehicle's on-board
computer.
Never leave the keys inside
the vehicle when you leave
the vehicle.
This system is designed to
help prevent vehicle theft but
does ...
Can bus line
Description
When any dtc for the can communication system is output, first measure the
resistance between the
terminals of the dlc3 to specify the trouble area, and check that there is not a
short in the can main wire,
between the main wire, to +b, or to gnd.
Wiring diagram
Inspecti ...
