1. Check the display of DTC U0121 or U0155 or both, using the WDS or equivalent. (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM]..)
2. Referring to the following table, determine the malfunctioning part of the CAN system.
Module
|
Communication status
|
Malfunction location
|
|
---|---|---|---|
ABS HU/CM
|
Instrument cluster
|
||
PCM
|
-
|
-
|
• Wiring harness A
• PCM
|
-
|
X
|
• Wiring harness B
• ABS HU/CM
|
|
X
|
-
|
• Wiring harness C
• Instrument cluster
|
1. Check the display of DTC U2523 or both, using the WDS or equivalent. (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM].)
2. Referring to the following table, determine the malfunctioning part of the CAN system.
Module
|
Communication status
|
Malfunction location
|
|
---|---|---|---|
PCM
|
Instrument cluster
|
||
ABS HU/CM
|
-
|
-
|
• Wiring harness B
• ABS HU/CM
|
-
|
X
|
• Wiring harness A
• PCM
|
|
X
|
-
|
• Wiring harness C
• Instrument cluster
|
1. Access and monitor the "PCM MSG" and "ABS MSG" of the PID using the WDS or equivalent.
2. Referring to the PID/DATA MONITOR, confirm the display status of the PID. (See PID/DATA MONITOR TABLE.)
3. Referring to the following table, determine the malfunctioning part of the CAN system.
Module
|
Communication status
|
Malfunction location
|
|
---|---|---|---|
PCM
|
ABS HU/CM
|
||
Instrument cluster
|
-
|
-
|
• Wiring harness C
• Instrument cluster
|
-
|
X
|
• Wiring harness A
• PCM
|
|
X
|
-
|
• Wiring harness B
• ABS HU/CM
|