Toyota RAV4 (XA40) 2013-2018 Service Manual: Customer problem analysis

Toyota RAV4 (XA40) 2013-2018 Service Manual / Introduction / How to troubleshoot ecu controlled systems / How to proceed with troubleshooting / 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:

Toyota RAV4. How to proceed with troubleshooting

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:

Check for intermittent problems
Check for intermittent problems Hint: A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ecus can be detected by using the ecu data list function of an intelligent tester. Turn the ignition switch off and connect the intelligent test ...

Stop & Start system
The Stop & Start system stops and starts the engine according to brake pedal or shift lever operation when the vehicle is stopped, such as at a stoplight, intersection, etc., in order to improve fuel economy and reduce noise pollution caused by the engine idling. Stop & Start system operatio ...

Occupant classification sensor power supply circuit malfunction
Description The occupant classification sensor power supply circuit consists of the occupant classification ecu and the occupant classification sensors. Dtc b1793 is recorded when a malfunction is detected in the occupant classification sensor power supply circuit. Wiring diagram ...