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:
Idle control system malfunction
Description
The idling speed is controlled by the etcs (electronic throttle control
system). The etcs is comprised
of: 1) the one valve type throttle body; 2) the throttle actuator, which
operates the throttle valve; 3) the
throttle position (tp) sensor, which detects the opening angle of ...
Checking the coolant
The coolant level is satisfactory
if it is between the "FULL" and
"LOW" lines on the reservoir
when the engine is cold.
Reservoir cap
"FULL" line
"LOW" line
If the level is on or below the "LOW" line, add coolant up to the "FULL"
line.
â– Coolant selection
Only use "Toyota Super Long Life
Cool ...
Auto lsd indicator light remains on
Description
This is the auto lsd switch for 2wd. When the auto lsd switch is pushed on,
the auto lsd function is
available and the auto lsd indicator light illuminates.
Hint:
The auto lsd does not operate even if the auto lsd switch is pressed under
the following conditions:
The trc or v ...
