ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM]
T–47
T
5 INSPECT INSTRUMENT CLUSTER
CONNECTOR
• Disconnect negative battery cable.
• Disconnect instrument cluster connector.
• Are poor connection detection bars of
instrument cluster connector okay?
Yes Go to next step.
No Replace wiring harness.
6 • Is vehicle equipped with DSC? Yes Go to next step.
No Go to step 8.
7 INSPECT WIRING HARNESS BETWEEN DSC
HU/CM AND INSTRUMENT CLUSTER
• Disconnect DSC HU/CM connector.
• Inspect the following wiring harness between
DSC HU/CM and instrument cluster
terminals for short to ground, short power
supply, and open circuit:
— AF—2W (CAN_L)
— AG—2X (CAN_H)
• Is wiring harness okay?
Yes Replace instrument cluster, then go to Step 17.
No Replace wiring harness.
8 INSPECT WIRING HARNESS BETWEEN ABS
(ABS/TCS) HU/CM AND INSTRUMENT
CLUSTER
• Disconnect ABS (ABS/TCS) HU/CM
connector.
• Inspect the following wiring harness between
ABS (ABS/TCS) HU/CM and instrument
cluster terminals for short to ground, short
power supply, and open circuit:
— R—2W (CAN_L)
— O—2X (CAN_H)
• Is wiring harness okay?
Yes Replace instrument cluster, then go to Step 17.
No Replace wiring harness.
9 INSPECT ABS (ABS/TCS) HU/CM OR DSC
HU/CM CONNECTOR
• Disconnect negative battery cable.
• Disconnect ABS (ABS/TCS) HU/CM or DSC
HU/CM connector.
• Is the connector for the ABS (ABS/TCS) HU/
CM or DSC HU/CM connected correctly?
Yes Go to next step.
No Replace wiring harness.
10 • Is vehicle equipped with DSC? Yes Go to next step.
No Go to step 12.
11 INSPECT WIRING HARNESS BETWEEN DSC
HU/CM AND INSTRUMENT CLUSTER
• Disconnect DSC HU/CM connector.
• Inspect the following wiring harness between
DSC HU/CM and instrument cluster
terminals for short to ground, short power
supply, and open circuit:
— AF—2W (CAN_L)
— AG—2X (CAN_H)
• Is wiring harness okay?
Yes Replace DSC HU/CM, then go to Step 17.
No Replace wiring harness.
12 INSPECT WIRING HARNESS BETWEEN ABS
(ABS/TCS) HU/CM AND INSTRUMENT
CLUSTER
• Disconnect ABS (ABS/TCS) HU/CM
connector.
• Inspect the following wiring harness between
ABS (ABS/TCS) HU/CM and instrument
cluster terminals for short to ground, short
power supply, and open circuit:
— R—2W (CAN_L)
— O—2X (CAN_H)
• Is wiring harness okay?
Yes Replace ABS (ABS/TCS) HU/CM, then go to Step 17.
No Replace wiring harness.
13 INSPECT PCM CONNECTOR
• Disconnect negative battery cable.
• Disconnect TCM connector.
• Is the connector for the TCM connected
correctly?
Yes Go to next step.
No Replace wiring harness.
STEP INSPECTION ACTION
To Next Page