DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0151-87: Lost Communication with Restraints Control Module Missing Message; DTC U0164-87: Lost Communication with HVAC Control Module Missing Message [10/2023 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Stop and Start / Trouble Codes.
5. Clear the DTCs.

   Powertrain > Stop and Start > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Turn the ignition switch off and wait for 30 seconds or more.
2. Start the engine.
3. Perform a road test.
4. Enter the following menus: Powertrain / Stop and Start / Trouble Codes.
5. Read the DTCs.

   Powertrain > Stop and Start > Trouble Codes 

   Result

   Result	Proceed to
   DTC U0100-87, U0126-87, U0129-87, U0131-87, U0140-87, U0151-87, U0164-87, U023A-87 or U1110-87 is output	A
   DTC U0100-87, U0126-87, U0129-87, U0131-87, U0140-87, U0151-87, U0164-87, U023A-87 or U1110-87 is not output	B

Result: 

A 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ] 

Result: 

B 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]