Toyota RAV4 (XA40) 2013-2018 Service Manual: Check for short circuit
- If the wire harness is ground shorted (fig. 5), Locate the section by conducting a resistance check with the body ground (below).
- Check the resistance with the body ground.
- Disconnect connectors a and c, and measure the resistance
Standard resistance (fig. 6)
Hint:
Measure the resistance while lightly shaking the wire harness vertically and horizontally.
If the results match the examples above, a short circuit exists between terminal 1 of connector a and terminal 1 of connector c.
- Disconnect connector b and measure the resistance.
Standard resistance (fig. 7)
If the results match the examples
above, a short
circuit exists between terminal 1 of connector b2
and terminal 1 of connector c.
If the results match the examples above, a short circuit exists between terminal 1 of connector b2 and terminal 1 of connector c.
Check for open circuit
For an open circuit in the wire harness in fig. 1,
Check the resistance or voltage, as described below.
Check the resistance.
Disconnect connectors a and c, and measure
the resi ...
Check and replace ecu
Notice:
The connector should not be disconnected from
the ecu. Perform the inspection from the
backside of the connector on the wire harness
side.
When no measuring condition is specified, ...
Other materials:
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 ar ...
Monitor drive pattern
Test monitor drive pattern for ect
Caution:
Perform this drive pattern on a level surface and
strictly observe the posted speed limits and traffic
laws while driving.
Hint:
Performing this drive pattern is one method to simulate
the ect's malfunction detection conditions.
The dtcs may ...
Emission inspection and maintenance (I/M) programs
Some states have vehicle
emission inspection programs
which include OBD
(On Board Diagnostics)
checks. The OBD system
monitors the operation of
the emission control system.
If the malfunction indicator
lamp comes on
The OBD system determines
that a problem exists somewhere
in the emission control
sy ...
