DTC U1129: Lost Communication With Brake System Control Module PU-Can

Failure detection pattern:

"Primary" (high-priority diagnosis)

Warning light/indicator light:

The combination of DTC and warning light display may differ from the list depending on vehicle conditions and driving conditions at the time of failure detection.

ABS warning light -
VDC warning light & VDC operation indicator light -
Electronic parking brake warning light (red) -
Brake warning light (EBD warning light) (red) -

NOTE: Refer to "LAN SYSTEM (DIAGNOSTICS)" for diagnostic procedure. Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .