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Home >> Toyota >> 2018 >> Avalon XLE >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can Communication System (W/ Central Gateway Ecu) - Diagnostic Codes - Circuit & Symptom Tests - (Except Hybrid) >> CAN COMMUNICATION SYSTEM (w/ Central Gateway ECU) >> Symptom Tests >> Check Bus 2 Line for Short to GND [10/2015 - ] >> Description

Check Bus 2 Line for Short to GND [10/2015 - ]: Description

There may be a short circuit between one of the CAN bus lines and GND when no resistance exists between terminal 18 (CA4H) of the central gateway ECU and terminal 4 (CG) of the DLC3, or terminal 17 (CA4L) of the central gateway ECU and terminal 4 (CG) of the DLC3.

Symptom Trouble Area
No resistance exists between terminal 18 (CA4H) of the central gateway ECU and terminal 4 (CG) of the DLC3, or terminal 17 (CA4L) of the central gateway ECU and terminal 4 (CG) of the DLC3.
  • Short to ground in bus 2 main line
  • Short to ground in bus 2 branch line
  • Central gateway ECU
  • ECM
  • Air conditioning amplifier assembly
  • Certification ECU (smart key ECU assembly)
  • Skid control ECU (brake actuator assembly)
  • Power steering ECU assembly
  • Airbag ECU assembly
  • Tire pressure warning ECU and receiver
  • Combination meter assembly
  • Main body ECU (multiplex network body ECU)
  • Steering sensor
  • No. 1 CAN junction connector
  • No. 2 CAN junction connector