RM35X0E _54 Brake _078667 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0383093 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/o VSC OFF Switch) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/o VSC OFF Switch)  U007488  Control Module Communication Bus "B" Off Bus Off  


DESCRIPTION

The skid control ECU (brake actuator assembly) receives signals from the ECM via CAN communication.

DTC No. Detection Item DTC Detection Condition Trouble Area
U007488 Control Module Communication Bus "B" Off Bus Off The +BS terminal voltage is between 9.6 and a 16.5 V and a bus OFF state occurs for 0.1 seconds or more. CAN communication system

PROCEDURE

1.CHECK DTC OUTPUT (HEALTH CHECK)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Operate the GTS to clear the codes. Enter the following menus: Chassis / Brake / Trouble Codes.

Chassis > Brake > Clear DTCs
50002 435

d.

Press the DTC clear button.


e.

Turn the ignition switch off.


f.

Turn the ignition switch to ON.


g.

Enter the following menus: System Select / Health Check.


h.

Check for DTCs.

Result:
Result Proceed to
DTCs for related systems are output together with DTC U007488. A
U007488 is output. B
DTCs are not output. C




A

GO TO DIAGNOSTIC TROUBLE CODE CHART (RELATED SYSTEM)

B

INSPECT CAN COMMUNICATION SYSTEM

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


C

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING