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Home >> Lexus >> 2006 >> RX 330 FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (Can Communication System - Diagnostics) >> Check For An Open In One Side Of Can Sub Bus Line >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

If 2 or more ECUs and/or sensors do not appear on the hand-held tester's "BUS CHECK" screen via the CAN VIM, one side of the CAN sub-bus line may be open. (One side of the CAN-H [sub-bus line]/CAN-L [sub-bus line] of the ECU and/or sensor is open.)

SYMPTOM TABLE

Symptom Trouble Area
2 or more ECUs and/or sensors do not appear on the hand-held tester's "BUS CHECK" screen via the CAN VIM.
  • One side of the CAN sub-bus line is open
  • Skid control ECU
  • Steering angle sensor
  • Yaw rate sensor
  • ECM
  • CAN J/C
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