Toyota RAV4 (XA40) 2013-2018 Service Manual: Customer problem analysis
Hint:
- In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
- Gather as much information as possible for reference.
Past problems that seem unrelated may also help in some cases.
- The following 5 items are important points in the problem analysis:
Operation flow
Hint:
Perform troubleshooting in accordance with the
procedures below. The following is an outline of basic
troubleshooting procedures. Confirm the troubleshooting
procedures for the circuit you a ...
Symptom confirmation and diagnostic trouble code
Hint:
The diagnostic system in the rav4 has various
functions.
The first function is the diagnostic trouble code
(dtc) check. A dtc is a code stored in the ecu
memory whenever a malfunction ...
Other materials:
Pig power supply voltage malfunction
Description
When a problem occurs in the system, the power source relay circuit is shut
off to stop the power assist.
Wiring diagram
Inspection procedure
Read value of intelligent tester (pig power supply)
Connect the intelligent tester (with can vim) to the
dlc3.
Turn ...
For vehicles equipped with mobile communication systems
Install the antenna as far away from the ecu and
sensors of the vehicle electronic systems as
possible.
Install an antenna feeder at least 20 cm (7.87 In.)
Away from the ecu and sensors of the vehicle
electronic systems. For details about ecu and
sensor locations, refer to the sec ...
Cold start
Description
The electronic throttle control system (etcs) controls the engine idling
speed. The etcs operates the
throttle actuator to open and close the throttle valve, and adjusts the intake
air amount to achieve the
target idling speed.
In addition, the ecm retards the ignition timi ...
