DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI))]

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Caution

• If the malfunctioning part is detected in the communication line, before disconnecting the related connector for inspection, press the connector in the connection direction to verify that there is no looseness or disconnection.

• When disconnecting the connector, verify that there is no damage, deformation, or corrosion of the connector terminals.

1. Verify the CAN system-related module DTCs and the failed module using the (M-MDS).

2. Look for a DTC display pattern and failed module display pattern in tandem which match.

Note

• A hyphen (-) in the DTC output pattern table indicates that the DTC may be displayed depending on the malfunction detection conditions. If only an (×) is indicated, it means the DTC will not be displayed.

• If any of the following DTCs is displayed alone, perform the applicable DTC inspection. (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI))].)

― EPS control module: U0300:00, U0401:00, U2100:00, U3000:85

― TCM: U0401:00, U0415:00

― DSC HU/CM: U0401:00, U0401:68, U0402:00

― Rear vehicle monitoring control module (RH): U0401:68, U0402:68, U0415:68

― BCM: U0401:68, U0402:68

― AFS control module: U0401:00, U0422:00

― Instrument cluster: U0100:87, U0401:68, U0401:92, U0402:68, U0402:92U, 0415:68, U0415:92, U0452:92, U0483:68, U0483:92, U0515:68, U0515:92, U0533:68, U2005:86

3. Refer to the matching tandem diagnostic results (A to Q) and inspect the possible cause and inspection item.

4. Perform the DTC inspection after the repair procedure.

• If any DTC is displayed, return to FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI))].

DTC Output Pattern and Malfunctioning Part

Cross (×): Displayed

Hyphen (-): May or may not be displayed

M-MDS display		DTC display pattern
DTC output module	DTC	DTC display pattern
PCM (PCM)	U0101:00				×
	U0121:00						×
	U0131:00		×
	U0140:00												×
	U0151:00																×
	U0155:00																	×
EPS (EHPAS control module)	U0100:00	×
	U0300:00	-
	U0401:00	-
	U2100:00	-
	U3000:85	-
TCM^*1 (TCM)	U0100:00	×
	U0121:00						×
	U0401:00	-
	U0415:00						-
ABS^*2 (DSC HU/CM)	U0100:00	×		×		×
	U0101:00				×	×
	U0140:00												×
	U0155:00																	×
	U0214:00								×
	U0401:00	-		-		-
	U0401:68	-		-		-
	U0402:00	-^*7		-	-	-
ABS^*3 (ABS HU/CM)	U0214:00								×
RKE^*4 (Keyless control module)	U0100:00	×		×		×		×
	U0101:00				×	×		×
	U0121:00						×	×
RVM^*5 (Rear vehicle monitoring control module (RH))	U0100:00	×		×		×		×		×
	U0101:00				×	×		×		×
	U0121:00						×	×		×
	U0140:00												×
	U0155:00																	×
	U0401:68	-		-		-		-		-
	U0402:68				-	-		-		-
	U0415:68						-	-		-
GEM (BCM)	U0100:00	×		×		×		×		×		×
	U0101:00				×	×		×		×		×
	U0121:00						×	×		×		×
	U0151:00																×
	U0214:00								×	×		×
	U0401:68	-		-		-		-		-		-
	U0402:68				-	-		-		-		-
AFS^*6 (AFS control module)	U0100:00	×		×		×		×		×		×		×
	U0140:00												×	×
	U0155:00																	×
	U0401:00	-		-		-		-		-		-		-
	U0422:00												-	-
RCM (SAS control module)	U0155:00																	×
IC (Instrument cluster)	U0100:00	×		×		×		×		×		×		×		×
	U0100:87	-		-		-		-		-		-		-		-
	U0101:00				×	×		×		×		×		×		×
	U0121:00						×	×		×		×		×		×
	U0140:00												×	×		×
	U0151:00																×
	U0182:00														×	×
	U0214:00								×	×		×		×		×
	U0232:00										×	×		×		×
	U0401:68	-		-		-		-		-		-		-		-
	U0401:92	-		-		-		-		-		-		-		-
	U0402:68				-	-		-		-		-		-		-
	U0402:92				-	-		-		-		-		-		-
	U0415:68						-	-		-		-		-		-
	U0415:92						-	-		-		-		-		-
	U0452:92																-
	U0483:68														-	-
	U0483:92														-	-
	U0515:68								-	-		-		-		-
	U0515:92								-	-		-		-		-
	U0533:68										-	-		-		-
	U2005:86	-		-		-		-		-		-		-		-
M-MDS display module		“Fail” display pattern
PCM		×		×		×		×		×		×		×		×
EPS			×	×		×		×		×		×		×		×
TCM^*1					×	×		×		×		×		×		×
ABS^{2, 3}							×	×		×		×		×		×
RKE^*4									×	×		×		×		×
RVM^*5											×	×		×		×
BCM/GEM													×	×		×
AFS^*6															×	×
RCM																	×
IC																		×
Item		Diagnostic result
Possible cause and inspection item		A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q
Reference page		A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q

*1 :ATX

*2 :with DSC

*3 :with ABS

*4 :with advanced keyless entry and push button start system

*5 :with rear vehicle monitoring system

*6 :With AFS (adaptive front lighting system)

*7 :MTX

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between PCM and branch A

• PCM malfunction

System wiring diagram

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Inspection item

• PCM connector

• Wiring harness between PCM terminal 1AM and branch A

• Wiring harness between PCM terminal 1AI and branch A

• PCM

ATX

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between EPS control module and connector C-09

• Connector C-09 malfunction

• EPS control module malfunction

System wiring diagram

am6zzw00006611

Inspection item

• EPS control module connector

• Connector C-09

• Wiring harness between EPS control module terminal 2B and connector C-09

• Wiring harness between EPS control module terminal 2C and connector C-09

• EPS control module

MTX

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between EPS control module and branch A

• EPS control module malfunction

System wiring diagram

am6zzw00006609

Inspection item

• EPS control module connector

• Wiring harness between EPS control module terminal 2B and branch A

• Wiring harness between EPS control module terminal 2C and branch A

• EPS control module

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between branch A and connector C-09

• Open circuit in wiring harness between connector C-09 and branch B

• Connector C-09 malfunction

System wiring diagram

am6zzw00006610

Inspection item

• Connector C-09

• Wiring harness between branch A and connector C-09

• Wiring harness between connector C-09 and branch B

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between TCM and connector C-09

• Connector C-09 malfunction

• TCM malfunction

System wiring diagram

am6zzw00006612

Inspection item

• TCM connector

• Connector C-09

• Wiring harness between TCM terminal 2W and connector C-09

• Wiring harness between TCM terminal 2X and connector C-09

• TCM

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between connector C-09 and branch A

• Connector C-09 malfunction

System wiring diagram

am6zzw00006613

Inspection item

• Connector C-09

• Wiring harness between connector C-09 and branch A

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between DSC HU/CM and branch B (with DSC)

• Open circuit in wiring harness between ABS HU/CM and branch B (with ABS)

• DSC HU/CM malfunction (with DSC)

• ABS HU/CM malfunction (with ABS)

System wiring diagram

am6zzw00006614

Inspection item

• DSC HU/CM connector (with DSC)

• ABS HU/CM connector (with ABS)

• Wiring harness between DSC HU/CM terminal E and branch B (with DSC)

• Wiring harness between DSC HU/CM terminal D and branch B (with DSC)

• Wiring harness between ABS HU/CM terminal E and branch B (with ABS)

• Wiring harness between ABS HU/CM terminal D and branch B (with ABS)

• DSC HU/CM (with DSC)

• ABS HU/CM (with ABS)

With advanced keyless entry and push button start system

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between branch B and connector C-06

• Open circuit in wiring harness between connector C-06 and connector C-33

• Connector C-06 malfunction

• Connector C-33 malfunction

System wiring diagram

am6zzw00006616

Inspection item

• Connector C-06

• Connector C-33

• Wiring harness between branch B and connector C-06

• Wiring harness between connector C-06 and connector C-33

Without advanced keyless entry and push button start system

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between branch B and connector C-06

• Open circuit in wiring harness between connector C-06 and connector C-27

• Open circuit in wiring harness between connector C-27 and connector branch C

• Connector C-06 malfunction

• Connector C-27 malfunction

System wiring diagram

am6zzw00006620

Inspection item

• Connector C-06

• Connector C-27

• Wiring harness between branch B and connector C-06

• Wiring harness between connector C-06 and connector C-27

• Wiring harness between connector C-27 and branch C

Without advanced keyless entry and push button start system and rear vehicle monitoring system

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between branch B and connector C-06

• Open circuit in wiring harness between connector C-06 and BCM

• Connector C-06 malfunction

System wiring diagram

am6zzw00006623

Inspection item

• BCM connector

• Connector C-06

• Wiring harness between branch B and connector C-06

• Wiring harness between connector C-06 and BCM terminal 6D

• Wiring harness between connector C-06 and BCM terminal 6B

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between keyless control module and connector C-33

• Connector C-33 malfunction

• Keyless control module malfunction

System wiring diagram

am6zzw00006617

Inspection item

• Keyless control module connector

• Connector C-33

• Wiring harness between keyless control module terminal 2G and connector C-33

• Wiring harness between keyless control module terminal 2I and connector C-33

• Keyless control module

With rear vehicle monitoring system

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between connector C-33 and connector C-27

• Open circuit in wiring harness between connector C-27 and branch C

• Connector C-33 malfunction

• Connector C-27 malfunction

System wiring diagram

am6zzw00006618

Inspection item

• Connector C-33

• Connector C-27

• Wiring harness between connector C-33 and connector C-27

• Wiring harness between connector C-27 and branch C

Without rear vehicle monitoring system

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between connector C-33 and BCM

• Connector C-33 malfunction

System wiring diagram

am6zzw00006622

Inspection item

• BCM connector

• Connector C-33

• Wiring harness between connector C-33 and BCM terminal 6D

• Wiring harness between connector C-33 and BCM terminal 6B

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between rear vehicle monitoring control module (RH) and branch C

• Rear vehicle monitoring control module (RH) malfunction

System wiring diagram

am6zzw00006619

Inspection item

• Rear vehicle monitoring control module (RH) connector

• Wiring harness between rear vehicle monitoring control module (RH) terminal L and branch C

• Wiring harness between rear vehicle monitoring control module (RH) terminal I and branch C

• Rear vehicle monitoring control module (RH)

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between branch C and connector C-27

• Open circuit in wiring harness between connector C-27 and BCM

• Connector C-27 malfunction

System wiring diagram

am6zzw00006621

Inspection item

• BCM connector

• Connector C-27

• Wiring harness between branch C and connector C-27

• Wiring harness between connector C-27 and BCM terminal 6D

• Wiring harness between connector C-27 and BCM terminal 6B

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• BCM malfunction

System wiring diagram

am6zzw00006624

Inspection item

• BCM

With AFS system

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between BCM and connector C-19

• Connector C-19 malfunction

System wiring diagram

am6zzw00006625

Inspection item

• BCM connector

• Connector C-19

• Wiring harness between BCM terminal 3S and connector C-19

• Wiring harness between BCM terminal 3P and connector C-19

Without AFS system

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between BCM and connector C-18

• Connector C-18 malfunction

System wiring diagram

am6zzw00006628

Inspection item

• BCM connector

• Connector C-18

• Wiring harness between BCM terminal 3S and connector C-18

• Wiring harness between BCM terminal 3P and connector C-18

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between AFS control module and connector C-19

• Connector C-19 malfunction

• AFS control module malfunction

System wiring diagram

am6zzw00006626

Inspection item

• AFS control module connector

• Connector C-19

• Wiring harness between AFS control module terminal B and connector C-19

• Wiring harness between AFS control module terminal A and connector C-19

• AFS control module

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between connector C-19 and connector C-18

• Connector C-19 malfunction

• Connector C-18 malfunction

System wiring diagram

am6zzw00006627

Inspection item

• Connector C-19

• Connector C-18

• Wiring harness between connector C-19 and connector C-18

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between SAS control module and connector C-18

• Connector C-18 malfunction

• SAS control module malfunction

System wiring diagram

am6zzw00006629

Inspection item

• SAS control module connector

• Connector C-18

• Wiring harness between SAS control module terminal 3C and connector C-18

• Wiring harness between SAS control module terminal 3D and connector C-18

• SAS control module

Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion

• Open circuit in wiring harness between instrument cluster and connector C-18

• Connector C-18 malfunction

• Instrument cluster malfunction

System wiring diagram

am6zzw00006630

Inspection item

• Instrument cluster connector

• Connector C-18

• Wiring harness between instrument cluster terminal 2X and connector C-18

• Wiring harness between instrument cluster terminal 2W and connector C-18

• Instrument cluster