Telematics Control Module (TCU) Fails Activation And DTC U2109 Flagged (SSM73298)

TELEMATICS CONTROL MODULE (TCU) FAILS ACTIVATION AND DTC U2109 FLAGGED

TECHNICAL SERVICE BULLETIN

SERVICE INFORMATION

Symptom  207000 Entertainment Systems

ISSUE

Technician may report one of the following conditions during or post PDI:

DTC U2109-09 (Back up Battery Component Failures)

During PDI it may not be possible to activate Telematics services

Vehicle message centre may display "SOS Limited functionality", coupled with a DTC U2109-09

CAUSE

Telematic Control Module(TCU) backup batteries have lower state of charge than design intent.

ACTION

Update the TCU software using SDD_150.05.001 or Pathfinder 96

Switch ignition to on for continuous 40 minutes. (Battery support will be required if the engine is not running)

The vehicle can be used/driven whilst this happening, as the TCU battery will charge in this vehicle usage condition

After 40 minutes have elapsed clear the DTC.

If the DTC or warning message persists please submit an EPQR and attach a session file

Technicians - Please rate this SSM and provide comments so that future communications can be improved.

1 = Poor - Basic information provided - The SSM does not help me resolve the customer concern.

3 = Average - Adequate information provided - The SSM partially helps me resolve the customer concern.

5 = Excellent - All required information provided to resolve the customer concern.