Toyota RAV4 manuals

Toyota RAV4 (XA40) 2013-2018 Service Manual: Control module communication bus off

Toyota RAV4. Control module communication bus off


Description

The power steering ecu receives signals from the ecm and the skid control ecu via the can communication system.


Hint:

Wiring diagram

Toyota RAV4. Control module communication bus off


Inspection procedure

  1. Reconfirm dtc

  1. Check for dtc.

Ok: dtc is not output.



Go to can communication system

Assist map number un-writing
Description The power steering ecu outputs this dtc when it determines that the assist map is not written in the ecu. Hint: The assist map data is written in the power steering ecu to contro ...

Eps warning light circuit
Description If the power steering ecu detects a malfunction, the p/s warning light comes on. At this time, the power steering ecu stores a dtc in its memory. Wiring diagram Inspection proced ...

Other materials:

Short in driver side curtain shield squib circuit
Description The driver side curtain shield squib circuit consists of the center airbag sensor and the curtain shield airbag lh. The circuit instructs the srs to deploy when the deployment conditions are met. These dtcs are recorded when a malfunction is detected in the driver side cu ...

Internal control module random access memory (ram) error
Description The ecm continuously monitors its own internal memory status, internal circuits, and output signals transmitted to the throttle actuator. This self-check ensures that the ecm is functioning properly. If any malfunction is detected, the ecm sets the appropriate dtc and illumina ...

System description
Lighting system Illumination control system (illuminated entry system): When the doors are unlocked by a key or transmitter operation, or when a door is opened or closed, the illuminated entry system turns on the room light, map light, foot light and ignition key cylinder light*1 o ...

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