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Home >> Acura >> 2019 >> TLX SH-AWD >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> VSA System - Diagnostics (1 Of 2) >> VSA DTC Advanced Diagnostics >> DTC Advanced Diagnostics: VSA related DTCs (2015-17) >> DTC 86-16: F-CAN Communication With VTM-4 Control Unit/F-CAN Communication With SH-AWD Control Unit
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DTC 86-16: F-CAN Communication With VTM-4 Control Unit/F-CAN Communication With SH-AWD Control Unit

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage 9.6 - 16.5 V

Operating Condition:

  • 1.

    Turn the vehicle to the ON mode.

Execution Regular Diagnosis
Duration About 1 second
DTC Type
  • 1 drive cycle
  • None
Fail Safe Action
  • None
Possible Cause
  • Open between the VSA modulator-control unit and the SH-AWD control unit (F-CAN A_L, F-CAN A_H lines)* 1
  • Open between the SH-AWD control unit and the CAN gateway (F-CAN B_L, F-CAN B_H lines)* 2
  • Open between the VSA modulator-control unit and the CAN gateway (F-CAN A_L, F-CAN A_H lines)* 2
  • Open between the VSA modulator-control unit and the CAN gateway (F-CAN B_L, F-CAN B_H lines)* 2
  • SH-AWD control unit failure
  • VSA modulator-control unit internal failure

*1: V6 engine without CAN gateway

*2: V6 engine with CAN gateway