Mazda Mazda6 - Page 818

MULTIPLEX COMMUNICATION SYSTEM
T–7
T
Self-Malfunction Diagnostic Function
• The self-malfunction diagnostic function determines that there is a malfunction, and outputs a signal, as a DTC,
to the DLC-2. The DTC can be read out using an SST (WDS or equivalent).
DTC table
PID/Data Monitoring Function
• The PID/data monitoring function is used to freely select and read out, in real time, the monitored items for the
input/output signals of the TCM, ABS (ABS/TCS) HU/CM, DSC HU/CM and instrument cluster.
• An SST (WDS or equivalent) is used to read out the PID/data monitor information.
End Of Sie
DTC Malfunction location Related module
U0073 CAN system communication error
• PCM
• TCM
U0100 Communication error to PCM
• TCM
• 4WD control module
U0101 Communication error to TCM
• PCM
• 4WD control module
U0121 Communication error to ABS (ABS/TCS) HU/CM or DSC HU/CM
U0155 Communication error to instrument cluster PCM
U1900 CAN system communication error
• ABS (ABS/TCS) HU/CM (with ABS (ABS/
TCS))
• DSC HU/CM (with DSC)
• Instrument cluster
U2511 Communication error to 4WD control module
• ABS (ABS/TCS) HU/CM (with ABS (ABS/
TCS))
• DSC HU/CM (with DSC)
U2516 CAN system wiring harness open and short circuit
• ABS (ABS/TCS) HU/CM (with ABS (ABS/
TCS))
• DSC HU/CM (with DSC)
• Instrument cluster
PID name
(definition)
Condition Specification Related module Terminal
PCM_MSG
(Missing message
from the PCM)
Present Circuit in the PCM is normal • TCM
• ABS (ABS/TCS)
HU/CM or DSC
HU/CM
• Instrument cluster
• TCM: 2J, 2M
• ABS (ABS/TCS) HU/CM
(with ABS (ABS/TCS)): O,
R
• DSC HU/CM (with DSC):
AF, AG
• Instrument cluster: 2W, 2X
Not Present Circuit in the PCM is abnormal
TCM_MSG
(Missing message
from the TCM)
Present Circuit in the TCM is normal • ABS (ABS/TCS)
HU/CM or DSC
HU/CM
• Instrument cluster
Not Present Circuit in the TCM is abnormal
ABS_MSG
(Missing message
from the ABS
(ABS/TCS) HU/
CM or DSC HU/
CM)
Present
Circuit in the ABS (ABS/TCS)
HU/CM or DSC HU/CM is
normal
• TCM
• Instrument cluster
Not Present
Circuit in the ABS (ABS/TCS)
HU/CM or DSC HU/CM is
abnormal
AWD_MSG
(Missing message
from the 4WD
control module)
Present
Circuit in the 4WD control
module is normal
• TCM
• ABS (ABS/TCS)
HU/CM or DSC
HU/CM
• Instrument cluster
Not Present
Circuit in the 4WD control
module is abnormal
IC_MSG
(Missing message
from the
instrument
cluster)
Present
Circuit in the instrument cluster
is normal
• TCM
• ABS (ABS/TCS)
HU/CM or DSC
HU/CM
Not Present
Circuit in the instrument cluster
is abnormal