DTC U0129-87: Lost Communication With Brake System Control Module Missing Message [12/2021 - 11/2022]: Procedure

Pre-procedure1

1. Clear the DTCs.

   Powertrain > Transmission > Clear DTCs 

   HINT: 

   Write down the currently output DTCs before clearing them.

   Procedure1

2. Start the engine and drive the vehicle at a low speed.

   Result

   Proceed to
   NEXT

   Post-procedure1

3. None.

Result: 

NEXT 

See step  2

1. Read the DTCs using the GTS.

   Powertrain > Transmission > Trouble Codes 

   Result

   Result	Proceed to
   DTC U0129-87 is not output	A
   DTC U0129-87 is output	B

Result: 

A 

CHECK FOR INTERMITTENT PROBLEMS 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2021 - ]

Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [12/2021 - ]

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  DIAGNOSIS SYSTEM [12/2021 - ]