G37 Sedan V6-3.7L (VQ37VHR) (2010)
Information Bus: Initial Inspection and Diagnostic Overview
Condition of Error Detection
TROUBLE DIAGNOSIS
Condition of Error Detection
DTC of CAN communication is indicated on SELF-DIAG RESULTS on CONSULT-III if a CAN communication signal is not transmitted or received
between units for 2 seconds or more.
NOTE:
DTCs of CAN communication are as follows:
-
U0101
-
U0140
-
U0164
-
U1000
-
U1001
CAN COMMUNICATION SYSTEM ERROR
-
CAN communication line open (CAN-H, CAN-L, or both)
-
CAN communication line short (ground, between CAN communication lines, other harnesses)
-
Error of CAN communication control circuit of the unit connected to CAN communication line
WHEN DTC OF CAN COMMUNICATION IS INDICATED EVEN THOUGH CAN COMMUNICATION
SYSTEM IS NORMAL
-
Removal/installation of parts: Error may be detected when removing and installing CAN communication unit and related parts while turning the
ignition switch ON. (A DTC except for CAN communication may be detected.)
-
Fuse blown out (removed): CAN communication of the unit may cease.
-
Voltage drop: Error may be detected if voltage drops due to discharged battery when turning the ignition switch ON (Depending on the control
unit which carries out CAN communication).
-
Error may be detected if the power supply circuit of the control unit, which carries out CAN communication, malfunctions (Depending on the
control unit which carries out CAN communication).
-
Error may be detected if reprogramming is not completed normally.
CAUTION:
CAN communication system is normal if DTC of CAN communication is indicated on SELF-DIAG
RESULTS of CONSULT-III under the above conditions. Erase the memory of the self-diagnosis of each unit.
CAN Diagnostic Support Monitor
TROUBLE DIAGNOSIS
CAN Diagnostic Support Monitor
MONITOR ITEM (CONSULT-III)
Example: CAN DIAG SUPPORT MNTR indication