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:

Key lock-in prevention function does not work properly
Description When the key is in the ignition key cylinder or the door courtesy light on signal is output to the main body ecu, performing the door lock operation with the lock switch does not lock the door. Wiring diagram Inspection procedure Read value of intelligent tester (unlock w ...

Purpose of readiness tests
The on-board diagnostic (obd ii) system is designed to monitor the performance of emission related components, and indicate any detected abnormalities with dtc (diagnostic trouble codes). Since various components need to be monitored during different driving conditions, the obd ii syste ...

Lost communication with driver side - side airbag sensor assembly
Description The side airbag sensor lh consists of part including the diagnostic circuit and the lateral deceleration sensor. When the center airbag sensor receives signals from the lateral deceleration sensor, it determines whether or not the srs should be activated. Dtc b1622/81 is ...