DTC U0100-00: Lost Communication with ECM/PCM "A" Missing Message (Powertrain Bus); DTC U0140-00: Lost Communication with Body Control Module (Sub) Missing Message; DTC U1107-00: Lost Communication with Power Management Module (Gear Shift Control Module "A"); DTC U1170-00: Lost Communication with Brake System Control Module (Gear Shift Control Module "A") [12/2017 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Enter the following menus: Health Check.
4. Check for DTCs.

   Result

   Result	Proceed to
   DTC P176D-12 does not output.	A
   DTC P176D-12 is output.	B

5. Turn the engine switch off.

Result: 

A 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 09/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 10/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2020 - 10/2023]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2023 - ] 

Result: 

B 

GO TO DTC CHART (P176D-12). Refer to  DTC P176D-12: IG2 Signal (Gear Shift Control Module "A") Circuit Short to Battery [12/2017 - 10/2023]  , or refer to  DTC P176D-12: IG2 Signal (Gear Shift Control Module "A") Circuit Short to Battery [10/2023 - ]