ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM]
T–43
T
4WD
X: Normal
—: Communication error
TCM
1. Access and monitor the “PCM_MSG”, “ABS_MSG”, “AWD_MSG” and “IC_MSG” of PID using the SST (WDS
or equivalent).
2. Referring to the PID/DATA MONITOR, confirm the display status of the PID. (See T–41 PID/DATA MONITOR
TABLE.)
3. Referring to the following table, determine the malfunctioning part of the CAN system.
X: Normal
—: Communication error
ABS (ABS/TCS) HU/CM or DSC HU/CM
1. Access and monitor the “PCM_MSG”, “TCM_MSG”, “AWD_MSG” and “IC_MSG” of PID using the SST (WDS
or equivalent).
2. Referring to the PID/DATA MONITOR, confirm the display status of the PID. (See T–41 PID/DATA MONITOR
TABLE.)
3. Referring to the following table, determine the malfunctioning part of the CAN system.
2WD
X: Normal
—: Communication error
Module
Communication status
Malfunction location
TCM
ABS (ABS/TCS) HU/CM
DSC HU/CM
Instrument cluster
PCM
———
• Wiring harness A
• PCM
— XX
• Wiring harness B
• TCM
X — X
• Wiring harness D
• ABS (ABS/TCS) HU/CM
• DSC HU/CM
XX—
• Wiring harness E
• Wiring harness G
• Instrument cluster
X ——• Wiring harness C
Module
Communication status
Malfunction location
PCM
ABS (ABS/TCS)
HU/CM
DSC HU/CM
4WD control
module
Instrument cluster
TCM
————
• Wiring harness B
• TCM
— XXX
• Wiring harness A
• PCM
X — XX
• Wiring harness D
• ABS (ABS/TCS)
HU/CM
• DSC HU/CM
XX— X
• Wiring harness F
• 4WD control
module
XXX—
• Wiring harness G
• Instrument cluster
X ———• Wiring harness C
XX——• Wiring harness E
Module
Communication status
Malfunction location
PCM Instrument cluster
• ABS (ABS/TCS) HU/CM
• DSC HU/CM
——
• Wiring harness B
• ABS (ABS/TCS) HU/CM
• DSC HU/CM
— X
• Wiring harness A
• PCM
X —
• Wiring harness C
• Instrument cluster
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