DTC U0129: Lost Communication with Brake System Control Module [08/2013 - 08/2014]: Procedure

1. Clear the DTCs.

   Powertrain > Engine and ECT > Clear DTCs 

   HINT: 

   Write down the currently output DTCs before clearing them.

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

   Result

   Proceed to
   NEXT

Result:  1

NEXT 

See step  2

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 / Engine and ECT / Trouble Codes.

   Powertrain > Engine and ECT > Trouble Codes 

5. Read the DTCs using the Techstream.

   Result

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

Result:  1

A 

CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [08/2013 - ] 

Result:  2

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  DIAGNOSIS SYSTEM [08/2013 - 04/2014]  Refer to  DIAGNOSIS SYSTEM [04/2014 - 08/2015]