DTC U0100-00: CAN Communication Failure With ECM/ISU

• 12 volt battery voltage 9.6 - 16.5 V

Operating Condition:

• 1.

  Start the engine.

• 2.

  Test-drive the vehicle at 7 mph (10 km/h) or more. (Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)

• 1 drive cycle
• VSA indicator on

• Degrade ABS performance
• Stop engine drag torque control function
• Stop TCS function or fade out (Dependent upon the conditions)
• Stop VSA function
• Stop brake assist function (Dependent upon the conditions)
• Stop hill start assist function

• Open between the VSA modulator-control unit and the PCM (F-CAN_L, F-CAN_H lines)
• PCM program not the latest
• PCM failure
• VSA modulator-control unit program not the latest
• VSA modulator-control unit internal failure