DTC U007B:88 [VEHICLE CONTROL MODULE]

id1502c5034100

Outline

System malfunction location

Unit communication error (HS-CAN)

Detection condition

•  The vehicle control module (VCM) determines a BUS OFF condition for the CAN BUS No.4 communication line for 5 s.

Fail-safe

(See DTC TABLE [VEHICLE CONTROL MODULE (E)].)

Possible cause

•  Malfunction in CAN BUS No.4 communication line

•  Malfunction in modules on CAN BUS No.4 communication line

•  Vehicle control module (VCM) malfunction (built into body control module (BCM))

•  Body control module (BCM) malfunction

System wiring diagram

Not applicable

System malfunction location	Unit communication error (HS-CAN)
Detection condition	• The vehicle control module (VCM) determines a BUS OFF condition for the CAN BUS No.4 communication line for 5 s.
Fail-safe	(See DTC TABLE [VEHICLE CONTROL MODULE (E)].)
Possible cause	• Malfunction in CAN BUS No.4 communication line • Malfunction in modules on CAN BUS No.4 communication line • Vehicle control module (VCM) malfunction (built into body control module (BCM)) • Body control module (BCM) malfunction
System wiring diagram	Not applicable

Diagnostic Procedure

• Perform an inspection in accordance with the multiplex communication system diagnostic procedure.(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [L.H.D. (E)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].)