Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. With the scan tool, read Global Telematics Box Module (TBM2) DTCs and record on the repair order.
2. With the scan tool, erase DTCs.
3. With the scan tool, read TBM2 DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK THE INSIDE REARVIEW MIRROR
1. Turn the ignition off.
2. Disconnect the Inside Rearview Mirror harness connector.
3. Turn the ignition on.
4. Wait 10 seconds.
5. With the scan tool, read DTCs.
  Is the DTC active?
  
  Yes
  - Go To 3
  No
  - Replace the Inside Rearview Mirror in accordance with the Service Information. Refer to MIRROR, REARVIEW, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (X804) EMERGENCY BACKLIGHT CONTROL CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the TBM2 C1 harness connector.
3. Check for continuity between ground and the (X804) Emergency Backlight Control circuit at the TBM2 C1 harness connector.
  Is there continuity between ground and the (X804) Emergency Backlight Control circuit?
  
  Yes
  - Repair the (X804) Emergency Backlight Control circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all TBM2 harness connectors.
2. Disconnect all related in-line harness connections (if equipped).
3. Disconnect the related component harness connectors.
4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
  - Proper connector installation.
  - Damaged connector locks.
  - Corrosion.
  - Other signs of water intrusion.
  - Weather seal damage (if equipped).
  - Bent terminals.
  - Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
  - Terminals that have been pushed back into the connector cavity.
  - Perform a terminal drag test on each connector terminal to verify proper terminal tension.
  Repair any conditions that are found.
5. Reconnect all TBM2 harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. With the scan tool, erase DTCs.
9. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
10. With the scan tool, read TBM2 DTCs.
  Did the DTC return?
  
  Yes
  - Replace the TBM2 in accordance with the Service information. Refer to MODULE, EMERGENCY ASSISTANCE (EAM), REMOVAL AND INSTALLATION or MODULE, GLOBAL TELEMATICS BOX, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  - Test complete.