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Home >> Dodge and Ram >> 2019 >> ProMaster 2500 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> (Body Control Module (BCM) - Electrical Diagnostics) >> DTC Troubleshooting >> U1736-86-LTM (Low Level TELEMATIC Module) Node On B Can-Signal Invalid >> Diagnostic Test
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Diagnostic Test

  1. VERIFY DTC IS ACTIVE 
    1. Turn the ignition on.
    2. With the scan tool, read active DTCs.

      Is this DTC active?

      Yes 

      • Go To  2

      No 

      • Go To  3
  2. VERIFY IF THIS DTC SET IN OTHER MODULES 
    1. Turn the ignition on.
    2. With the scan tool, read active DTCs.

      Are any other modules on the CAN BUS reporting this DTC?

      Yes 

      • Replace and program the Radio Receiver Module (RRM) in accordance with the Service Information. Refer to RADIO, REMOVAL .
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Replace and program the module that set this DTC in accordance to the Service Information. Perform its respective verification test.
  3. CHECK THE WIRING AND CONNECTORS 
    1. The conditions necessary to set the DTC are not present at this time.
    2. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set.
    3. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
    4. Wiggle the wiring and connectors while checking for shorted and open circuits.

      Were there any problems found?

      Yes 

      No 

      • Test complete.