On-Board Diagnostic [Multiplex Communication System]: Other

FOREWORD [MULTIPLEX COMMUNICATION SYSTEM]

If there is any vehicle malfunction complaint lodged by a customer, perform malfunction diagnosis according to the troubleshooting procedure.

Troubleshooting Procedure Flowchart. Scheme 64

Scheme 64: Troubleshooting Procedure Flowchart

Scheme 65

Scheme 65: Action for Non-Repeatable Malfunction

Scheme 66

If the malfunction does not recur, verify the malfunction cause by performing the following actions: Based on the repair order form, attempt to drive the vehicle or perform tests to replicate the malfunction, record the data (such as CAN circuit voltage) at that time, and detect the malfunction cause. Refer to [Determining Open Circuit Location] based on the recorded DTC, shake the wiring harness or connector of the electrical component which is suspected to be the cause of the malfunction, and inspect for any changes in CAN system voltage or occurrence of any DTCs. (Scheme 65): Shaking Wiring Harness Or Connector Of Electrical Component Inspect the female terminals on the connector of the electric component which is suspected to be the cause of the malfunction for poor connection. (Scheme 66): Inspecting Female Terminals On Connector Of Electric Component

HS-CAN

DTC output module (M-MDS display)	DTC	Malfunction location
PCM [MZR 2.0, MZR 2.5] (PCM)	U0073:00	CAN system communication error
	U0101:00	Communication error to TCM
	U0121:00	Communication error to ABS HU/CM or DSC HU/CM
	U0155:00	Communication error to instrument cluster
PCM [MZR 2.3 DISI Turbo] (PCM)	U0073:00	CAN system communication error
	U0121:00	Communication error to DSC HU/CM
	U0131:00	Communication error to EHPAS control module
	U0140:00	Communication error to BCM
	U0155:00	Communication error to instrument cluster
PCM [SKYACTIV-G 2.0] (PCM)	U0073:00	CAN system communication error
	U0101:00	Communication error to TCM
	U0121:00	Communication error to DSC HU/CM
	U0155:00	Communication error to instrument cluster
TCM [FS5A-EL] (1) (TCM)	U0073:00	CAN system communication error
	U0100:00	Communication error to PCM
	U0121:00	Communication error to ABS HU/CM or DSC HU/CM
TCM [FW6A-EL] (1) (TCM)	U0073:00	CAN system communication error
	U0100:00	Communication error to PCM
	U0121:00	Communication error to DSC HU/CM
	U0131:00	Communication error to EHPAS control module
	U0141:00	Communication error to BCM
	U0155:00	Communication error to instrument cluster
EHPAS control module (EPS)	U0073	CAN system communication error
	U0100	Communication error to PCM
	U0140	Communication error to BCM
	U0155	Communication error to instrument cluster
DSC HU/CM (2) (ABS)	U0001:88	CAN system communication error
	U0100:00	Communication error to PCM
	U0101:00	Communication error to TCM
	U0140:00	Communication error to BCM
	U0155:00	Communication error to instrument cluster
ABS HU/CM (3) (ABS)	U0001:88	CAN system communication error
	U0100:00	Communication error to PCM
	U0155:00	Communication error to instrument cluster
BCM (BCM/GEM)	U0001:88	CAN system communication error
	U0100:00	Communication error to PCM
	U0101:00	Communication error to TCM
	U0151:00	Communication error to SAS control module
	U0214:00	Communication error to keyless control module
BSM control module (RH) (4) (BSMR)	U0001:88	CAN system communication error
	U0100:00	Communication error to PCM
	U0101:00	Communication error to TCM
	U0140:00	Communication error to BCM
	U0232:00	Communication error to BSM control module (LH)
BSM control module (LH) (4) (BSML)	U0001:88	CAN system communication error
	U0100:00	Communication error to PCM
	U0101:00	Communication error to TCM
	U0140:00	Communication error to BCM
	U0233:00	Communication error to BSM control module (RH)
SAS control module (RCM)	U0073	CAN system communication error
SAS control module (RCM)	U0155	Communication error to instrument cluster
Keyless control module (5) (RKE)	U0001:88	CAN system communication error
	U0100:00	Communication error to PCM
	U0101:00	Communication error to TCM
	U0121:00	Communication error to ABS HU/CM or DSC HU/CM
AFS control module (6) (AFS)	U0001:88	CAN system communication error
	U0100:00	Communication error to PCM
	U0140:00	Communication error to BCM
Instrument cluster (IC)	U0001:88	CAN system communication error
	U0100:00	Communication error to PCM
	U0101:00	Communication error to TCM
	U0121:00	Communication error to ABS HU/CM or DSC HU/CM
	U0131:00	Communication error to EHPAS control module
	U0140:00	Communication error to BCM
	U0151:00	Communication error to SAS control module
	U0182:00	Communication error to AFS control module
	U0214:00	Communication error to keyless control module
	U0232:00	Communication error to BSM control module (LH)
	U0233:00	Communication error to BSM control module (RH)
(1) ATX (2) With DSC (3) With ABS (4) With BSM system (5) With advanced keyless entry and push button start system (6) With AFS (adaptive front lighting system)

(1)

ATX

(2)

With DSC

(3)

With ABS

(4)	With BSM system

(5)	With advanced keyless entry and push button start system

(6)	With AFS (adaptive front lighting system)

MS-CAN

DTC output module (M-MDS display)	DTC	Malfunction location
Multi information display (1) (MID)	U0155	Communication error to instrument cluster
	U0164	Communication error to climate control unit
	U0184	Communication error to audio unit
	U2516	Communication error (MS-CAN)
Information display (2)	U0164 EATC	Communication error to climate control unit
	U0181 HEC	Communication error to instrument cluster
	U0184 ACU	Communication error to audio unit
	U2516	Communication error (MS-CAN)
Bluetooth unit (3) (ACU)	U0498:68 (26:Er81)	Communication error (MS-CAN)
Audio unit (ACU)	U0010:88 (16:Er12)	CAN system communication error
	U0155:00 (16:Er11, 17:Er12)	Communication error to instrument cluster
	U0156:00	Communication error to multi information display
	U0193:00	Communication error to SIRIUS satellite radio unit
	U0197:00	Communication error to Bluetooth unit
Climate control unit (4) (EATC)	U0010:88	CAN communication system
	U0155:00	Communication error to instrument cluster
	U0156:00	Communication error to multi information display
Instrument cluster (IC)	U0010:88	Module communication error (MS-CAN)
	U0156:00	Communication error to multi information display
	U0164:00	Communication error to climate control unit
(1) With multi information display (2) Without multi information display (3) With Bluetooth system (HF/TEL system) (4) With full-auto air conditioner

(1)	With multi information display

(2)	Without multi information display

(3)	With Bluetooth system (HF/TEL system)

(4)	With full-auto air conditioner

ATX

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between PCM and branch A (MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo)
Open circuit in wiring harness between PCM and connector C-02 (SKYACTIV-G 2.0)
Open circuit in wiring harness between connector C-02 and branch A (SKYACTIV-G 2.0)
Connector C-02 malfunction (SKYACTIV-G 2.0)
PCM malfunction

System wiring diagram

PCM And Branch A System Wiring Diagram (MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo). Scheme 67

Scheme 67: PCM And Branch A System Wiring Diagram (MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo)

Inspection item

PCM connector
Wiring harness between PCM terminal 1AM and branch A (MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo)
Wiring harness between PCM terminal 1AI and branch A (MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo)
Wiring harness between PCM terminal 2AK and connector C-02 (SKYACTIV-G 2.0)
Wiring harness between PCM terminal 2AL and connector C-02 (SKYACTIV-G 2.0)
Wiring harness between connector C-02 and branch A (SKYACTIV-G 2.0)
Connector C-02 (SKYACTIV-G 2.0)
PCM

MTX

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between PCM and connector C-02
Open circuit in wiring harness between connector C-02 and branch A
Connector C-02 malfunction
PCM malfunction

System wiring diagram

PCM And Connector C-02 (Open Circuit) (Open Circuit) System Wiring Diagram. Scheme 68

Scheme 68: PCM And Connector C-02 (Open Circuit) (Open Circuit) System Wiring Diagram

Inspection item

PCM connector
Connector C-02
Wiring harness between PCM terminal 1AM and connector C-02 (MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo)
Wiring harness between PCM terminal 1AI and connector C-02 (MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo)
Wiring harness between PCM terminal 2AK and connector C-02 (SKYACTIV-G 2.0)
Wiring harness between PCM terminal 2AL and connector C-02 (SKYACTIV-G 2.0)
Wiring harness between connector C-02 and branch A
Connector C-02
PCM

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between TCM and branch A
TCM malfunction

TCM And Branch A (Open Circuit) System Wiring Diagram. Scheme 69

Scheme 69: TCM And Branch A (Open Circuit) System Wiring Diagram

Inspection item

TCM connector
Wiring harness between TCM terminal B and branch A (MZR 2.0, MZR 2.5)
Wiring harness between TCM terminal E and branch A (MZR 2.0, MZR 2.5)
Wiring harness between TCM terminal 1E and branch A (SKYACTIV-G 2.0)
Wiring harness between TCM terminal 1F and branch A (SKYACTIV-G 2.0)
TCM

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between branch A and connector C-02
Open circuit in wiring harness between connector C-02 and branch B
Connector C-02 malfunction

Branch A And Connector C-02 (Open Circuit) System Wiring Diagram. Scheme 70

Scheme 70: Branch A And Connector C-02 (Open Circuit) System Wiring Diagram

Inspection item

Connector C-02
Wiring harness between branch A and connector C-02
Wiring harness between connector C-02 and branch B

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between EHPAS control module and branch B
EHPAS control module malfunction

EHPAS Control Module And Branch B (Open Circuit) System Wiring Diagram. Scheme 71

Scheme 71: EHPAS Control Module And Branch B (Open Circuit) System Wiring Diagram

Inspection item

EHPAS control module connector
Wiring harness between EHPAS control module terminal 2D and branch B
Wiring harness between EHPAS control module terminal 2B and branch B
EHPAS control module

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between branch B and connector C-41

Branch B And Connector C-41 (Open Circuit) System Wiring Diagram. Scheme 72

Scheme 72: Branch B And Connector C-41 (Open Circuit) System Wiring Diagram

Inspection item

Wiring harness between branch B and connector C-41
Connector C-41

F

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between DSC HU/CM and connector C-41
Connector C-41 malfunction
DSC HU/CM malfunction

DSC HU/CM And Connector C-41 (Open Circuit) System Wiring Diagram. Scheme 73

Scheme 73: DSC HU/CM And Connector C-41 (Open Circuit) System Wiring Diagram

Inspection item

DSC HU/CM connector
Wiring harness between DSC HU/CM terminal M and connector C-41
Wiring harness between DSC HU/CM terminal J and connector C-41
Connector C-41
DSC HU/CM

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between ABS HU/CM and connector C-41
Connector C-41 malfunction
ABS HU/CM malfunction

ABS HU/CM And Connector C-41 (Open Circuit) System Wiring Diagram. Scheme 74

Scheme 74: ABS HU/CM And Connector C-41 (Open Circuit) System Wiring Diagram

Inspection item

ABS HU/CM connector
Wiring harness between ABS HU/CM terminal H and connector C-41
Wiring harness between ABS HU/CM terminal L and connector C-41
Connector C-41
ABS HU/CM

H

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between connector C-41 and BCM
BCM malfunction

Connector C-41 And BCM (Open Circuit) System Wiring Diagram. Scheme 75

Scheme 75: Connector C-41 And BCM (Open Circuit) System Wiring Diagram

Inspection item

BCM connector
Wiring harness between connector C-41 and BCM terminal 1A
Wiring harness between connector C-41 and BCM terminal 1B
BCM Between BCM terminals 1A and 2A Between BCM terminals 1B and 2B

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
BCM malfunction

CAN Driver And BCM (Open Circuit) System Wiring Diagram. Scheme 76

Scheme 76: CAN Driver And BCM (Open Circuit) System Wiring Diagram

Inspection item

J

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between BCM and connector C-17
Open circuit in wiring harness between connector C-17 and branch C
Connector C-17 malfunction
BCM malfunction

With BSM system

System wiring diagram

BCM And Connector C-17 (Open Circuit) System Wiring Diagram. Scheme 77

Scheme 77: BCM And Connector C-17 (Open Circuit) System Wiring Diagram

Inspection item

BCM connector
Connector C-17
Wiring harness between BCM terminal 2A and connector C-17
Wiring harness between BCM terminal 2B and connector C-17
Wiring harness between connector C-17 and branch C
BCM Between BCM terminals 1A and 2A Between BCM terminals 1B and 2B

Without BSM system

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between BCM and connector C-17
Connector C-17 malfunction
BCM malfunction

System wiring diagram

BCM And Connector C-17 (Open Circuit) System Wiring Diagram. Scheme 78

Scheme 78: BCM And Connector C-17 (Open Circuit) System Wiring Diagram

Inspection item

BCM connector
Connector C-17
Wiring harness between BCM terminal 2A and connector C-17
Wiring harness between BCM terminal 2B and connector C-17
BCM Between BCM terminals 1A and 2A Between BCM terminals 1B and 2B

K

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between BSM control module (RH) and connector C-24
Open circuit in wiring harness between connector C-24 and connector C-71
Open circuit in wiring harness between connector C-71 and branch C
Connector C-24 malfunction
Connector C-71 malfunction
BSM control module (RH) malfunction

BSM Control Module (RH) And Connector C-24 (Open Circuit) System Wiring Diagram. Scheme 79

Scheme 79: BSM Control Module (RH) And Connector C-24 (Open Circuit) System Wiring Diagram

Inspection item

BSM control module (RH) connector
Connector C-24
Connector C-71
Wiring harness between BSM control module (RH) terminal H and connector C-24
Wiring harness between BSM control module (RH) terminal G and connector C-24
Wiring harness between connector C-24 and connector C-71
Wiring harness between connector C-71 and branch C
BSM control module (RH)

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between BSM control module (LH) and connector C-24
Open circuit in wiring harness between connector C-24 and connector C-71
Open circuit in wiring harness between connector C-71 and branch C
Connector C-24 malfunction
Connector C-71 malfunction
BSM control module (LH) malfunction

BSM Control Module (LH) And Connector C-24 (Open Circuit) System Wiring Diagram. Scheme 80

Scheme 80: BSM Control Module (LH) And Connector C-24 (Open Circuit) System Wiring Diagram

Inspection item

BSM control module (LH) connector
Connector C-24
Connector C-71
Wiring harness between BSM control module (LH) terminal H and connector C-24
Wiring harness between BSM control module (LH) terminal G and connector C-24
Wiring harness between connector C-24 and connector C-71
Wiring harness between connector C-71 and branch C
BSM control module (LH)

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between branch C and connector C-17
Open circuit in wiring harness between connector C-17 and branch D
Connector C-17 malfunction

Branch C And Connector C-17 (Open Circuit) System Wiring Diagram. Scheme 81

Scheme 81: Branch C And Connector C-17 (Open Circuit) System Wiring Diagram

Inspection item

Connector C-17
Wiring harness between branch C and connector C-17
Wiring harness between connector C-17 and branch D

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between SAS control module and branch D
SAS control module malfunction

SAS Control Module And Branch D (Open Circuit) System Wiring Diagram. Scheme 82

Scheme 82: SAS Control Module And Branch D (Open Circuit) System Wiring Diagram

Inspection item

SAS control module connector
Wiring harness between SAS control module terminal 3K and branch D
Wiring harness between SAS control module terminal 3L and branch D
SAS control module

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between branch D and connector C-50
Connector C-50 malfunction

Branch D And Connector C-50 (Open Circuit) System Wiring Diagram. Scheme 83

Scheme 83: Branch D And Connector C-50 (Open Circuit) System Wiring Diagram

Inspection item

Connector C-50
Wiring harness between branch D and connector C-50

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between keyless control module and connector C-50
Connector C-50 malfunction
Keyless control module malfunction

Keyless Control Module And Connector C-50 (Open Circuit) System Wiring Diagram. Scheme 84

Scheme 84: Keyless Control Module And Connector C-50 (Open Circuit) System Wiring Diagram

Inspection item

Keyless control module connector
Connector C-50
Wiring harness between keyless control module terminal 2K and connector C-50
Wiring harness between keyless control module terminal 2L and connector C-50
Keyless control module

Q

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between connector C-50 and connector C-49
Connector C-50 malfunction
Connector C-49 malfunction

Connector C-50 And Connector C-49 (Open Circuit) System Wiring Diagram. Scheme 85

Scheme 85: Connector C-50 And Connector C-49 (Open Circuit) System Wiring Diagram

Inspection item

Connector C-50
Connector C-49

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between AFS control module and connector C-49
Connector C-49 malfunction
AFS control module malfunction

AFS Control Module And Connector C-49 (Open Circuit) System Wiring Diagram. Scheme 86

Scheme 86: AFS Control Module And Connector C-49 (Open Circuit) System Wiring Diagram

Inspection item

AFS control module connector
Connector C-49
Wiring harness between AFS control module terminal B and connector C-49
Wiring harness between AFS control module terminal A and connector C-49
AFS control module

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between connector C-49 and connector C-42
Connector C-49 malfunction
Connector C-42 malfunction

Connector C-49 And Connector C-42 (Open Circuit) System Wiring Diagram. Scheme 87

Scheme 87: Connector C-49 And Connector C-42 (Open Circuit) System Wiring Diagram

Inspection item

Connector C-49
Connector C-42
Wiring harness between connector C-49 and connector C-42

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between connector C-42 and instrument cluster
connector C-42 malfunction
Instrument cluster malfunction

Connector C-42 And Instrument Cluster (Open Circuit) System Wiring Diagram. Scheme 88

Scheme 88: Connector C-42 And Instrument Cluster (Open Circuit) System Wiring Diagram

Inspection item

Instrument cluster connector
Connector C-42
Wiring harness between connector C-42 and instrument cluster terminal 2B
Wiring harness between connector C-42 and instrument cluster terminal 2D
Instrument cluster

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between multi information display/information display and connector C-11
Open circuit in wiring harness between connector C-11 and connector C-49
Connector C-11 malfunction
Connector C-49 malfunction
Multi information display/information display malfunction

System wiring diagram

Multi Information Display/Information Display And Connector C-11 (Open Circuit) System Wiring Diagram. Scheme 89

Scheme 89: Multi Information Display/Information Display And Connector C-11 (Open Circuit) System Wiring Diagram

Inspection item

Multi information display/information display connector
Connector C-11
Connector C-49
Wiring harness between multi information display/information display terminal 1V and connector C-11
Wiring harness between multi information display/information display terminal 1X and connector C-11
Wiring harness between connector C-11 and connector C-49
Multi information display/information display

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between information display and connector C-49
Connector C-49 malfunction
Information display malfunction

System wiring diagram

Information Display And Connector C-49 (Open Circuit) System Wiring Diagram. Scheme 90

Scheme 90: Information Display And Connector C-49 (Open Circuit) System Wiring Diagram

Inspection item

Information display connector
Connector C-49
Wiring harness between information display terminal 1V and connector C-49
Wiring harness between information display terminal 1X and connector C-49
Information display

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between Bluetooth unit and connector C-49
Connector C-49 malfunction
Bluetooth unit malfunction

Bluetooth Unit And Connector C-49 (Open Circuit) System Wiring Diagram. Scheme 91

Scheme 91: Bluetooth Unit And Connector C-49 (Open Circuit) System Wiring Diagram

Inspection item

Bluetooth unit connector
Connector C-49
Wiring harness between Bluetooth unit terminal Y and connector C-49
Wiring harness between Bluetooth unit terminal Z and connector C-49
Bluetooth unit

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between SIRIUS satellite radio unit and connector C-49
Connector C-49 malfunction
SIRIUS satellite radio unit malfunction

Sirius Satellite Radio Unit And Connector C-49 (Open Circuit) System Wiring Diagram. Scheme 92

Scheme 92: Sirius Satellite Radio Unit And Connector C-49 (Open Circuit) System Wiring Diagram

Inspection item

SIRIUS satellite radio unit connector
Connector C-49
Wiring harness between SIRIUS satellite radio unit terminal L and connector C-49
Wiring harness between SIRIUS satellite radio unit terminal K and connector C-49
SIRIUS satellite radio unit

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between connector C-49 and connector C-46
Connector C-49 malfunction
Connector C-46 malfunction

Connector C-49 And Connector C-46 (Open Circuit) System Wiring Diagram. Scheme 93

Scheme 93: Connector C-49 And Connector C-46 (Open Circuit) System Wiring Diagram

Inspection item

Connector C-49
Connector C-46
Wiring harness between connector C-49 and connector C-46

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between climate control unit and connector C-46
Connector C-46 malfunction
Climate control unit malfunction

Climate Control Unit And Connector C-46 (Open Circuit) System Wiring Diagram. Scheme 94

Scheme 94: Climate Control Unit And Connector C-46 (Open Circuit) System Wiring Diagram

Inspection item

Climate control unit connector
Connector C-46
Wiring harness between climate control unit terminal 2E and connector C-46
Wiring harness between climate control unit terminal 2G and connector C-46
Climate control unit

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between audio unit and connector C-46
Connector C-46 malfunction
Audio unit malfunction

Audio Unit And Connector C-46 (Open Circuit) System Wiring Diagram. Scheme 95

Scheme 95: Audio Unit And Connector C-46 (Open Circuit) System Wiring Diagram

Inspection item

Audio unit connector
Connector C-46
Wiring harness between audio unit terminal 1O and connector C-46
Wiring harness between audio unit terminal 1Q and connector C-46
Audio unit

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between instrument cluster and connector C-46
Connector C-46 malfunction
Instrument cluster malfunction

Instrument Cluster And Connector C-46 (Open Circuit) System Wiring Diagram. Scheme 96

Scheme 96: Instrument Cluster And Connector C-46 (Open Circuit) System Wiring Diagram

Inspection item

Instrument cluster connector
Connector C-46
Wiring harness between instrument cluster terminal 2C and connector C-46
Wiring harness between instrument cluster terminal 2E and connector C-46
Instrument cluster

Possible Cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between instrument cluster and connector C-46
Connector C-46 malfunction
USB adapter malfunction

Inspection item

USB adapter connector
Connector C-46
Wiring harness between instrument cluster terminal 1L and connector C-46
Wiring harness between instrument cluster terminal 1K and connector C-46
USB adapter

Determination Procedure

CAUTION

When disconnecting the connector, verify that there is no looseness, damage, deformation, corrosion, or poor connection of the connector terminals. When inspecting the DLC-2, touch it with a paper clip or similar thin pin without directly inserting a tester into the terminals.

Step	INSPECTION		Action
1	INSPECT FOR SHORT TO GROUND BETWEEN BCM AND INSTRUMENT CLUSTER Disconnect the negative battery cable. Disconnect connector 1 which has the BCM 1A and 1B terminals. Inspect for continuity at the following terminals: Between DLC-2 terminal F and body ground Between DLC-2 terminal E and body ground Is there continuity?	Yes	Go to the next step.
1		No	Go to Step 18.
2	INSPECT CAN LINE INSIDE BCM FOR SHORT TO GROUND Disconnect connector 2 which has the BCM 2A and 2B terminals. Inspect for continuity at the following terminals: Between DLC-2 terminal F and body ground Between DLC-2 terminal E and body ground Is there continuity?	Yes	Go to the next step.
2		No	Replace the BCM because there is a short to ground in the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION .)
3	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-17 AND INSTRUMENT CLUSTER Disconnect connector C-17. Inspect for continuity at the following terminals: Between DLC-2 terminal F and body ground Between DLC-2 terminal E and body ground Is there continuity?	Yes	Go to Step 8.
3		No	Go to the next step.
4	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-17 AND BSM CONTROL MODULE Inspect for continuity at the following terminals: Between BSM control module (RH) terminal H and body ground Between BSM control module (RH) terminal G and body ground Is there continuity?	Yes	Go to the next step.
4		No	Repair or replace the wiring harness between the BCM and connector C-17 because the wiring harness is shorted to ground.
5	INSPECT FOR SHORT TO GROUND BETWEEN BSM CONTROL MODULE (LH, RH) AND CONNECTOR C-71 Disconnect connector C-71. Inspect for continuity at the following terminals: Between BSM control module (LH, RH) terminal H and body ground Between BSM control module (LH, RH) terminal G and body ground Is there continuity?	Yes	Go to the next step.
5		No	Repair or replace the wiring harness between connector C-71 and connector C-17 because the wiring harness is shorted to ground.
6	INSPECT FOR SHORT TO GROUND BETWEEN BSM CONTROL MODULE AND CONNECTOR C-24 Disconnect connector C-24. Inspect for continuity at the following terminals: Between BSM control module (LH, RH) terminal H and body ground Between BSM control module (LH, RH) terminal G and body ground Is there continuity?	Yes	Go to the next step.
6		No	Repair or replace the wiring harness between connector C-24 and connector C-71 because the wiring harness is shorted to ground.
7	INSPECT CAN LINE IN BSM CONTROL MODULE (LH, RH) FOR SHORT TO GROUND Disconnect the BSM control module (LH, RH) connector. Inspect for continuity at the following terminals: Between BSM control module (LH, RH) terminal H (wiring harness side) and body ground Between BSM control module (LH, RH) terminal G (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between BSM control module (LH, RH) and connector C-24 because the wiring harness is shorted to ground.
7		No	Replace the BSM control module (LH, RH) because there is a short to ground in the BSM control module (LH, RH). (See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION .)
8	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-50 AND INSTRUMENT CLUSTER Disconnect connector C-50. Inspect for continuity at the following terminals: Between DLC-2 terminal F and body ground Between DLC-2 terminal E and body ground Is there continuity?	Yes	Go to Step 12.
8		No	Go to the next step.
9	INSPECT FOR SHORT TO GROUND BETWEEN KEYLESS CONTROL MODULE AND CONNECTOR C-50 Inspect for continuity at the following terminals: Between keyless control module terminal 2K and body ground Between keyless control module terminal 2L and body ground Is there continuity?	Yes	Go to the next step.
9		No	Go to Step 11.
10	INSPECT CAN LINE IN KEYLESS CONTROL MODULE FOR SHORT TO GROUND Disconnect the keyless control module connector. Inspect for continuity at the following terminals: Between keyless control module terminal 2K (wiring harness side) and body ground Between keyless control module terminal 2L (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the keyless control module and connector C-50 because the wiring harness is shorted to ground.
10		No	Replace the keyless control module because there is a short to ground in the keyless control module. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION .)
11	INSPECT CAN LINE IN SAS CONTROL MODULE FOR SHORT TO GROUND Disconnect the SAS control module connector. Inspect for continuity at the following terminals: Between SAS control module terminal 3K (wiring harness side) and body ground Between SAS control module terminal 3L (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the SAS control module and connector C-50 because the wiring harness is shorted to ground.
11		No	Replace the SAS control module because there is a short to ground in the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION .)
12	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-49 AND INSTRUMENT CLUSTER Disconnect connector C-49. Inspect for continuity at the following terminals: Between DLC-2 terminal F and body ground Between DLC-2 terminal E and body ground Is there continuity?	Yes	Go to Step 15.
12		No	Go to the next step.
13	INSPECT FOR SHORT TO GROUND BETWEEN AFS CONTROL MODULE AND CONNECTOR C-49 Inspect for continuity at the following terminals: Between AFS control module terminal B and body ground Between AFS control module terminal A and body ground Is there continuity?	Yes	Go to the next step.
13		No	Repair or replace the wiring harness between connector C-50 and connector C-49 because the wiring harness is shorted to ground.
14	INSPECT CAN LINE IN AFS CONTROL MODULE FOR SHORT TO GROUND Disconnect the AFS control module connector. Inspect for continuity at the following terminals: Between AFS control module terminal B (wiring harness side) and body ground Between AFS control module terminal A (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the AFS control module and connector C-49 because the wiring harness is shorted to ground.
14		No	Replace the AFS control module because there is a short to ground in the AFS control module. (See AFS (ADAPTIVE FRONT LIGHTING SYSTEM) CONTROL MODULE REMOVAL/INSTALLATION .)
15	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-42 AND DLC-2 Disconnect connector C-42. Inspect for continuity at the following terminals: Between DLC-2 terminal F and body ground Between DLC-2 terminal E and body ground Is there continuity?	Yes	Repair or replace the wiring harness between DLC-2 and connector C-42 because the wiring harness is shorted to ground.
15		No	Go to the next step.
16	INSPECT FOR SHORT TO GROUND BETWEEN INSTRUMENT CLUSTER AND CONNECTOR C-42 Inspect for continuity at the following terminals: Instrument cluster terminal 2B and body ground Instrument cluster terminal 2D and body ground Is there continuity?	Yes	Go to the next step.
16		No	Repair or replace the wiring harness between connector C-49 and connector C-42 because the wiring harness is shorted to ground.
17	INSPECT CAN LINE IN INSTRUMENT CLUSTER FOR SHORT TO GROUND Disconnect the instrument cluster connector. Inspect for continuity at the following terminals: Between instrument cluster terminal 2B (wiring harness side) and body ground Between instrument cluster terminal 2D (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the instrument cluster and connector C-42 because the wiring harness is shorted to ground.
17		No	Replace the instrument cluster because there is a short to ground in the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
18	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-41 AND BCM Connect connector 1 which has BCM terminals 1A and 1B. Disconnect connector C-41. Inspect for continuity at the following terminals: Between DLC-2 terminal F and body ground Between DLC-2 terminal E and body ground Is there continuity?	Yes	Repair or replace the wiring harness because the wiring harness is shorted to ground between connector C-41 and the BCM.
18		No	Go to the next step.
19	INSPECT FOR SHORT TO GROUND BETWEEN DSC HU/CM OR ABS HU/CM AND CONNECTOR C-41 Inspect for continuity at the following terminals: Between DSC HU/CM terminal M and body ground (DSC vehicle) Between DSC HU/CM terminal J and body ground (DSC vehicle) Between ABS HU/CM terminal H and body ground (ABS vehicle) Between ABS HU/CM terminal L and body ground (ABS vehicle) Is there continuity?	Yes	Go to the next step.
19		No	Go to Step 21.
20	INSPECT CAN LINE IN DSC HU/CM OR ABS HU/CM FOR SHORT TO GROUND Disconnect DSC HU/CM or ABS HU/CM connector. Inspect for continuity at the following terminals: Between DSC HU/CM terminal M (wiring harness side) and body ground (DSC vehicle) Between DSC HU/CM terminal J (wiring harness side) and body ground (DSC vehicle) Between ABS HU/CM terminal H (wiring harness side) and body ground (ABS vehicle) Between ABS HU/CM terminal L (wiring harness side) and body ground (ABS vehicle) Is there continuity?	Yes	Repair or replace the wiring harness between DSC HU/CM or ABS HU/CM and connector C-41 because there is a short to ground in the wiring harness.
20		No	Replace the DSC HU/CM or ABS HU/CM because there is a short to ground in the DSC HU/CM or ABS HU/CM. (See DSC HU/CM REMOVAL/INSTALLATION .) (See ABS HU/CM REMOVAL/INSTALLATION .)
21	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS C-02 AND C-41 Connect connector C-41. Disconnect connector C-02. Inspect for continuity at the following terminals: Between DLC-2 terminal F and body ground Between DLC-2 terminal E and body ground Is there continuity?	Yes	Go to the next step.
21		No	For the MZR 2.0, MZR 2.5, and MZR 2.3 DISI Turbo, go to Step 23. For the SKYACTIV-G 2.0, go to Step 24.
22	INSPECT CAN LINE IN EHPAS CONTROL MODULE FOR SHORT TO GROUND Disconnect the EHPAS control module connector. Inspect for continuity at the following terminals: Between EHPAS control module terminal 2D (wiring harness side) and body ground Between EHPAS control module terminal 2B (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the EHPAS control module and connector C-41/connector C-02 because there is short to ground in the wiring harness.
22		No	Replace the EHPAS control module because there is a short to ground in the EHPAS control module. (See ELECTRIC POWER STEERING OIL PUMP COMPONENT DISASSEMBLY/ASSEMBLY .)
23	INSPECT CAN-RELATED MODULES FOR SHORT TO GROUND Connect connector C-02. Verify the continuity between the following terminals while removing the PCM and TCM one by one. Between DLC-2 terminal F and body ground Between DLC-2 terminal E and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the PCM and TCM/connector C-02 because the wiring harness is shorted to ground.
23		No	Replace the module in which there was no continuity when it was removed.
24	INSPECT FOR SHORT TO GROUND BETWEEN TCM AND CONNECTOR C-02 Inspect for continuity at the following terminals: Between connector C-02 terminal H (front harness side) and body ground Between connector C-02 terminal I (front harness side) and body ground Is there continuity?	Yes	Go to Step 26.
24		No	Go to the next step.
25	INSPECT CAN LINE IN TCM FOR SHORT TO GROUND Disconnect the TCM connector. Inspect for continuity at the following terminals: Between connector C-02 terminal AF (emission harness side) and body ground Between connector C-02 terminal AG (emission harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the TCM and connector C-02 because the wiring harness is shorted to ground.
25		No	Replace the TCM because there is a short to ground in the TCM. (See CONTROL VALVE BODY REMOVAL/INSTALLATION [FW6A-EL] .)
26	INSPECT CAN LINE IN PCM FOR SHORT TO GROUND Disconnect the PCM connector. Inspect for continuity at the following terminals: Between connector C-02 terminal H (front harness side) and body ground Between connector C-02 terminal I (front harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the PCM and connector C-02 because the wiring harness is shorted to ground.
26		No	Replace the PCM because there is a short to ground in the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .)

CAUTION

Step	INSPECTION		Action
1	INSPECT FOR SHORT TO POWER SUPPLY BETWEEN BCM AND INSTRUMENT CLUSTER Disconnect the negative battery cable. Disconnect the BCM connector 1. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage between 1.5-3.5 V?	Yes	Go to Step 18.
1		No	Go to the next step.
2	INSPECT BCM FOR SHORT TO POWER SUPPLY Switch the ignition off. Disconnect the negative battery cable. Disconnect the BCM connector 2. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage between 1.5-3.5 V?	Yes	Replace the BCM because there is a short to the power supply in the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION .)
2		No	Go to the next step.
3	INSPECT CAN LINE BETWEEN CONNECTOR C-17 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Disconnect connector C-17. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage between 1.5-3.5 V?	Yes	Go to the next step.
3		No	Go to Step 8.
4	INSPECT CAN LINE BETWEEN BSM CONTROL MODULE AND CONNECTOR C-17 FOR SHORT TO POWER SUPPLY Switch the ignition ON. Measure the voltage at BSM control module (RH) terminals H and G. Is the voltage between 1.5-3.5 V?	Yes	Repair or replace the wiring harness between the BCM and connector C-17 because the wiring harness is shorted to the power supply.
4		No	Go to the next step.
5	INSPECT CAN LINE BETWEEN BSM CONTROL MODULE (RH, LH) AND CONNECTOR C-71 FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Disconnect connector C-71. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at BSM control module (RH, LH) terminals H and G. Is the voltage between 1.5-3.5 V?	Yes	Repair or replace the wiring harness between connector C-71 and connector C-17 because the wiring harness is shorted to the power supply.
5		No	Go to the next step.
6	INSPECT CAN LINE BETWEEN BSM CONTROL MODULE (RH) AND CONNECTOR C-24 FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Disconnect connector C-24. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at BSM control module (RH, LH) terminals H and G. Is the voltage between 1.5-3.5 V?	Yes	Repair or replace the wiring harness between connector C-24 and connector C-71 because the wiring harness is shorted to the power supply.
6		No	Go to the next step.
7	INSPECT BSM CONTROL MODULE (RH, LH) FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Disconnect the BSM control module (LH, RH) connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at BSM control module (RH, LH) terminals H and G. Is the voltage between 1.5-3.5 V?	Yes	Replace the BSM control module (RH, LH) because the BSM control module (RH, LH) is shorted to the power supply. (See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION .)
7		No	Repair or replace the wiring harness between the BSM control module (RH, LH) and connector C-24 because the wiring harness is shorted to the power supply.
8	INSPECT CAN LINE BETWEEN CONNECTOR C-50 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Disconnect connector C-50. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage between 1.5-3.5 V?	Yes	Go to the next step.
8		No	Go to Step 12.
9	INSPECT CAN LINE BETWEEN CONNECTOR C-50 AND KEYLESS CONTROL MODULE FOR SHORT TO POWER SUPPLY Switch the ignition ON. Measure the voltage at keyless control module terminals 2K and 2L. Is the voltage between 1.5-3.5 V?	Yes	Go to Step 11.
9		No	Go to the next step.
10	INSPECT KEYLESS CONTROL MODULE FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Disconnect the keyless control module connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at keyless control module terminals 2K and 2L (wiring harness side). Is the voltage between 1.5-3.5 V?	Yes	Replace the keyless control module because there is a short to the power supply in the keyless control module. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION .)
10		No	Repair or replace the wiring harness between connector C-50 and the keyless control module because the wiring harness is shorted to the power supply.
11	INSPECT SAS CONTROL MODULE FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Connect the BCM connector 2. Connect connector C-17. Disconnect the SAS control module. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage between 1.5-3.5 V?	Yes	Replace the SAS control module because there is a short to the power supply in the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION .)
11		No	Repair or replace the wiring harness between the SAS control module and connector C-17/C-50 because the wiring harness is shorted to the power supply.
12	INSPECT CAN LINE BETWEEN CONNECTOR C-49 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Disconnect connector C-49. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage between 1.5-3.5 V?	Yes	Go to the next step.
12		No	Go to Step 15.
13	INSPECT CAN LINE BETWEEN CONNECTOR C-49 AND AFS CONTROL MODULE FOR SHORT TO POWER SUPPLY Switch the ignition ON. Measure the voltage at AFS control module terminals B and A. Is the voltage between 1.5-3.5 V?	Yes	Repair or replace the wiring harness between connector C-50 and connector C-49 because the wiring harness is shorted to the power supply.
13		No	Go to the next step.
14	INSPECT AFS CONTROL MODULE FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Disconnect the AFS control module connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at AFS control module terminals B and A (wiring harness side). Is the voltage between 1.5-3.5 V?	Yes	Replace the AFS control module because there is a short to the power supply in the AFS control module. (See AFS (ADAPTIVE FRONT LIGHTING SYSTEM) CONTROL MODULE REMOVAL/INSTALLATION .)
14		No	Repair or replace the wiring harness between connector C-49 and the AFS control module because the wiring harness is shorted to the power supply.
15	INSPECT CAN LINE BETWEEN CONNECTOR C-42 AND DLC-2 FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Disconnect connector C-42. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage between 1.5-3.5 V?	Yes	Go to the next step.
15		No	Repair or replace the wiring harness between DLC-2 and connector C-42 because the wiring harness is shorted to the power supply.
16	INSPECT CAN LINE BETWEEN CONNECTOR C-42 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY Switch the ignition ON. Measure the voltage at instrument cluster terminals 2B and 2D. Is the voltage between 1.5-3.5 V?	Yes	Repair or replace the wiring harness between connector C-49 and connector C-42 because the wiring harness is shorted to the power supply.
16		No	Go to the next step.
17	INSPECT INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Disconnect the instrument cluster connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at instrument cluster terminals 2B and 2D (wiring harness side). Is the voltage between 1.5-3.5 V?	Yes	Replace the instrument cluster because the instrument cluster is shorted to the power supply. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
17		No	Repair or replace the wiring harness between connector C-42 and the instrument cluster because the wiring harness is shorted to the power supply.
18	INSPECT CAN LINE BETWEEN CONNECTOR C-41 AND BCM FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Connect the BCM connector 1. Disconnect connector C-41. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage between 1.5-3.5 V?	Yes	Go to the next step.
18		No	Repair or replace the wiring harness between connector C-41 and the BCM because the wiring harness is shorted to the power supply.
19	INSPECT CAN LINE BETWEEN DSC HU/CM OR ABS HU/CM AND CONNECTOR C-41 FOR SHORT TO POWER SUPPLY Switch the ignition ON. Measure the following voltages: DSC HU/CM terminals M and J (with DSC) ABS HU/CM terminals H and L (with ABS) Is the voltage between 1.5-3.5 V?	Yes	Go to Step 21.
19		No	Go to the next step.
20	INSPECT DSC HU/CM OR ABS HU/CM FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Disconnect the DSC HU/CM or ABS HU/CM connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the following voltages: DSC HU/CM terminals M and J (wiring harness side) (with DSC) ABS HU/CM terminals H and L (wiring harness side) (with ABS) Is the voltage between 1.5-3.5 V?	Yes	Replace the DSC HU/CM or ABS HU/CM because the DSC HU/CM or ABS HU/CM is shorted to the power supply. (See DSC HU/CM REMOVAL/INSTALLATION .) (See ABS HU/CM REMOVAL/INSTALLATION .)
20		No	Repair or replace the wiring harness between the DSC HU/CM or ABS HU/CM and connector C-41 because the wiring harness is shorted to the power supply.
21	INSPECT CAN LINE BETWEEN CONNECTOR C-02 AND BCM FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Connect connector C-41. Disconnect connector C-02. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage between 1.5-3.5 V?	Yes	For the MZR 2.0, 2.5, or MZR 2.3 DISI Turbo, go to Step 23. For SKYACTIV-G 2.0, go to Step 24.
21		No	Go to the next step.
22	INSPECT EHPAS CONTROL MODULE FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Disconnect the EHPAS control module connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at EHPAS control module terminals 2D and 2B (wiring harness side). Is the voltage between 1.5-3.5 V?	Yes	Replace the EHPAS control module because the EHPAS control module is shorted to the power supply. (See ELECTRIC POWER STEERING OIL PUMP COMPONENT DISASSEMBLY/ASSEMBLY .)
22		No	Repair or replace the wiring harness between the EHPAS control module and connector C-02/C-41 because the wiring harness is shorted to the power supply.
23	INSPECT CAN-RELATED MODULES FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) NOTE: Disconnect the negative battery cable before disconnecting the connectors, and connect the negative battery cable before measuring the terminal voltage. Connect connector C-02. Measure the voltage at the following terminals while removing the PCM and TCM one by one. Switch the ignition ON. DLC-2 terminal F DLC-2 terminal E Is the voltage between 1.5-3.5 V?	Yes	Replace the module in which the voltage is between 1.5-3.5 when the module is removed.
23		No	Repair or replace the wiring harness between the PCM and TCM/connector C-02 because the wiring harness is shorted to the power supply.
24	INSPECT CAN LINE BETWEEN TCM AND CONNECTOR C-02 FOR SHORT TO POWER SUPPLY Switch the ignition ON. Measure the following voltages: Connector C-02 terminals H and I (front harness side) Is the voltage between 1.5-3.5 V?	Yes	Go to the next step.
24		No	Go to Step 26.
25	INSPECT TCM FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Connect connector C-02. Disconnect the TCM connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the following voltages: Connector C-02 terminals AF and AG (emission harness side) Is the voltage between 1.5-3.5 V?	Yes	Replace the TCM because there is a short to the power supply in the TCM. (See CONTROL VALVE BODY REMOVAL/INSTALLATION [FW6A-EL] .)
25		No	Repair or replace the wiring harness between the TCM and connector C-02 because the wiring harness is shorted to the power supply.
26	INSPECT PCM FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Connect connector C-02. Disconnect the PCM connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the following voltages: Connector C-02 terminals H and I (front harness side) Is the voltage between 1.5-3.5 V?	Yes	Replace the PCM because there is a short to the power supply in the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .)
26		No	Repair or replace the wiring harness between the PCM and connector C-02 because the wiring harness is shorted to the power supply.

NOTE
Disconnect the negative battery cable before disconnecting the connectors, and connect the negative battery cable before measuring the terminal voltage.

CAUTION

Step	INSPECTION		Action
1	INSPECT CAN LINE BETWEEN BCM AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUIT Disconnect the negative battery cable. Disconnect the BCM connector 1. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Go to the next step.
1		No	Go to Step 18.
2	INSPECT CAN LINE IN BCM FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Disconnect the BCM connector 2. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Go to the next step.
2		No	Replace the BCM because there is a short between circuits in the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION .)
3	INSPECT CAN LINE BETWEEN CONNECTOR C-17 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUIT Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-17. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Go to Step 8.
3		No	Go to the next step.
4	INSPECT CAN LINE BETWEEN BSM CONTROL MODULE (RH) AND CONNECTOR C-17 FOR SHORT BETWEEN CIRCUITS Switch the ignition ON. Measure the voltage at BSM control module (RH) terminals H and G. Is the voltage at BSM control module (RH) terminals H and G the same?	Yes	Go to the next step.
4		No	Repair or replace the wiring harness between the BCM and connector C-17 because the wiring harness is shorted between circuits.
5	INSPECT CAN LINE BETWEEN CONNECTOR C-71 AND CONNECTOR C-17 FOR SHORT BETWEEN CIRCUIT Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-71. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at BSM control module (RH, LH) terminals H and G. Is the voltage at BSM control module (RH, LH) terminals H and G the same?	Yes	Go to the next step.
5		No	Repair or replace the wiring harness between connector C-71 and connector C-17 because the wiring harness is shorted between circuits.
6	INSPECT CAN LINE BETWEEN CONNECTOR C-24 AND CONNECTOR C-71 FOR SHORT BETWEEN CIRCUIT Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-24. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at BSM control module (RH, LH) terminals H and G. Is the voltage at BSM control module (RH, LH) terminals H and G the same?	Yes	Go to the next step.
6		No	Repair or replace the wiring harness between connector C-24 and connector C-71 because the wiring harness is shorted between circuits.
7	INSPECT CAN LINE IN BSM CONTROL MODULE (LH, RH) FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Connect connector C-24, connector C-71 and connector C-17. Disconnect the BSM control module (RH, LH) connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Repair or replace the wiring harness between the BSM control module (RH, LH) and connector C-24 because the wiring harness is shorted between circuits.
7		No	Replace the BSM control module (RH, LH) because there is a short between circuits in the BSM control module (RH, LH). (See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION .)
8	INSPECT CAN LINE BETWEEN CONNECTOR C-50 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUIT Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-50. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Go to Step 12.
8		No	Go to the next step.
9	INSPECT CAN LINE BETWEEN CONNECTOR C-50 AND KEYLESS CONTROL MODULE FOR SHORT BETWEEN CIRCUITS Switch the ignition ON. Measure the voltage at keyless control module connector terminals 2K and 2L. Is the voltage at keyless control module connector terminals 2K and 2L the same?	Yes	Go to the next step.
9		No	Go to Step 11.
10	INSPECT CAN LINE IN KEYLESS CONTROL MODULE FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Connect connector C-50. Disconnect the keyless control module connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Repair or replace the wiring harness between the keyless control module and connector C-50 because the wiring harness is shorted between circuits.
10		No	Replace the keyless control module because there is a short between circuits in the keyless control module. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION .)
11	INSPECT CAN LINE IN SAS CONTROL MODULE FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Connect connector C-50. Disconnect the SAS control module. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Repair or replace the wiring harness between the SAS control module and connector C-17/C-50 because the wiring harness is shorted between circuits.
11		No	Replace the SAS control module because there is a short between circuits in the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION .)
12	INSPECT CAN LINE BETWEEN CONNECTOR C-49 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUIT Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-49. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Go to Step 15.
12		No	Go to the next step.
13	INSPECT CAN LINE BETWEEN AFS CONTROL MODULE AND CONNECTOR C-49 FOR SHORT BETWEEN CIRCUITS Switch the ignition ON. Measure the voltage at AFS control module terminals B and A. Is the voltage at AFS control module terminals B and A the same?	Yes	Go to the next step.
13		No	Repair or replace the wiring harness between connector C-50 and connector C-49 because the wiring harness is shorted between circuits.
14	INSPECT CAN LINE IN AFS CONTROL MODULE FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Connect connector C-49. Disconnect the AFS control module. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Repair or replace the wiring harness between the AFS control module and connector C-49 because the wiring harness is shorted between circuits.
14		No	Replace the AFS control module because there is a short between circuits in the AFS control module. (See AFS (ADAPTIVE FRONT LIGHTING SYSTEM) CONTROL MODULE REMOVAL/INSTALLATION .)
15	INSPECT CAN LINE BETWEEN DLC-2 AND CONNECTOR C-42 FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-42. Verify the continuity between DLC-2 terminals E and F. Is there continuity?	Yes	Repair or replace the wiring harness between DLC-2 and connector C-42 because the wiring harness is shorted between circuits.
15		No	Go to the next step.
16	INSPECT CAN LINE BETWEEN CONNECTOR C-42 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUIT Switch the ignition ON. Measure the voltage at instrument cluster terminals 2B and 2D. Is the voltage at instrument cluster terminals 2B and 2D the same?	Yes	Go to the next step.
16		No	Repair or replace the wiring harness between connector C-49 and connector C-42 because the wiring harness is shorted between circuits.
17	INSPECT CAN LINE IN INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Connect connector C-42. Disconnect the instrument cluster connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Repair or replace the wiring harness between the instrument cluster and connector C-42 because the wiring harness is shorted between circuits.
17		No	Replace the instrument cluster because there is a short between circuits in the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
18	INSPECT CAN LINE BETWEEN CONNECTOR C-41 AND BCM FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Connect the BCM connector 1. Disconnect connector C-41. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Repair or replace the wiring harness between connector C-41 and the BCM because the wiring harness is shorted between circuits.
18		No	Go to the next step.
19	INSPECT CAN LINE BETWEEN DSC HU/CM OR ABS HU/CM AND CONNECTOR C-41 FOR SHORT BETWEEN CIRCUITS Switch the ignition ON. Measure the following voltages: DSC HU/CM terminals M and J (with DSC) ABS HU/CM terminals H and L (with ABS) Are the following voltages the same? DSC HU/CM terminals M and J (with DSC) ABS HU/CM terminals H and L (with ABS)	Yes	Go to the next step.
19		No	Go to Step 21.
20	INSPECT CAN LINE IN DSC HU/CM OR ABS HU/CM FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Connect connector C-41. Disconnect the DSC HU/CM or ABS HU/CM connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Repair or replace the wiring harness between DSC HU/CM or ABS HU/CM and connector C-41 because the wiring harness is shorted between circuits.
20		No	Replace the DSC HU/CM or ABS HU/CM because there is a short between circuits in the DSC HU/CM or ABS HU/CM. (See DSC HU/CM REMOVAL/INSTALLATION .) (See ABS HU/CM REMOVAL/INSTALLATION .)
21	INSPECT CAN LINE BETWEEN CONNECTOR C-02 AND BCM FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Connect connector C-41. Disconnect connector C-02. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Go to the next step.
21		No	For the MZR 2.0, 2.5, and MZR 2.3 DISI Turbo, go to Step 23. For the SKYACTIV-G 2.0, go to Step 24.
22	INSPECT CAN LINE IN EHPAS CONTROL MODULE FOR SHORT BETWEEN CIRCUITS Turn the ignition switch to the LOCK position. Disconnect the negative battery cable. Disconnect the EHPAS control module connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Repair or replace the wiring harness between the EHPAS control module and connector C-02/C-41 because the wiring harness is shorted between circuits.
22		No	Replace the EHPAS control module because there is a short between circuits in the EHPAS control module. (See ELECTRIC POWER STEERING OIL PUMP COMPONENT DISASSEMBLY/ASSEMBLY .)
23	INSPECT CAN-RELATED MODULES FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) NOTE: Disconnect the negative battery cable before disconnecting the connectors, connect the negative battery cable before measuring the terminal voltage, and then switch the ignition ON. Connect connector C-02. Measure the voltage at DLC-2 terminals E and F while removing the PCM and TCM one by one. Is the voltage at DLC-2 terminals E and F the same?	Yes	Repair or replace the wiring harness between the PCM and TCM/connector C-02 because the wiring harness is shorted between circuits.
23		No	Replace the module which the voltage at DLC-2 terminals E and F differs when removing the module.
24	INSPECT CAN LINE BETWEEN TCM AND CONNECTOR C-02 FOR SHORT BETWEEN CIRCUITS Switch the ignition ON. Measure the voltage at connector C-02 terminals H and I (front harness side). Is the voltage at connector C-02 terminals H and I the same?	Yes	Go to Step 26.
24		No	Go to the next step.
25	INSPECT CAN LINE IN TCM FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Connect connector C-02. Disconnect the TCM connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Repair or replace the wiring harness between the TCM and connector C-02 because the wiring harness is shorted between circuits.
25		No	Replace the TCM because there is a short between circuits in the TCM. (See CONTROL VALVE BODY REMOVAL/INSTALLATION [FW6A-EL] .)
26	INSPECT CAN LINE IN PCM FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Connect connector C-02. Disconnect the PCM connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals E and F. Is the voltage at DLC-2 terminals E and F the same?	Yes	Repair or replace the wiring harness between the PCM and connector C-02 because the wiring harness is shorted between circuits.
26		No	Replace the PCM because there is a short between circuits in the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .)

NOTE
Disconnect the negative battery cable before disconnecting the connectors, connect the negative battery cable before measuring the terminal voltage, and then switch the ignition ON.

CAUTION

Step	INSPECTION		Action
1	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-11 AND INSTRUMENT CLUSTER Disconnect the negative battery cable. Disconnect connector C-11. Inspect for continuity at the following terminals: Between DLC-2 terminal L and body ground Between DLC-2 terminal K and body ground Is there continuity?	Yes	Go to the next step.
1		No	Go to Step 16.
2	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-49 AND INSTRUMENT CLUSTER Disconnect connector C-49. Inspect for continuity at the following terminals: Between DLC-2 terminal L and body ground Between DLC-2 terminal K and body ground Is there continuity?	Yes	Go to Step 7.
2		No	Go to the next step.
3	INSPECT FOR SHORT TO GROUND BETWEEN Bluetooth UNIT AND CONNECTOR C-49 Inspect for continuity at the following terminals: Between Bluetooth unit terminal Y and body ground Between Bluetooth unit terminal Z and body ground Is there continuity?	Yes	Go to the next step.
3		No	Go to Step 5.
4	INSPECT CAN LINE IN Bluetooth UNIT FOR SHORT TO GROUND Disconnect the Bluetooth unit connector. Inspect for continuity at the following terminals: Between Bluetooth unit terminal Y (wiring harness side) and body ground Between Bluetooth unit terminal Z (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the Bluetooth unit and connector C-49 because the wiring harness is shorted to ground.
4		No	Replace the Bluetooth unit because there is a short to ground inside the unit. (See BLUETOOTH UNIT REMOVAL/INSTALLATION .)
5	INSPECT FOR SHORT TO GROUND BETWEEN SIRIUS SATELLITE RADIO UNIT AND CONNECTOR C-49 Inspect for continuity at the following terminals: Between Sirius satellite radio unit terminal L and body ground Between Sirius satellite radio unit terminal K and body ground Is there continuity?	Yes	Go to the next step.
5		No	Repair or replace the wiring harness between connector C-11 and connector C-49 because the wiring harness is shorted to ground.
6	INSPECT CAN LINE IN SIRIUS SATELLITE RADIO UNIT FOR SHORT TO GROUND Disconnect the Sirius satellite radio unit connector. Inspect for continuity at the following terminals: Between Sirius satellite radio unit terminal L (wiring harness side) and body ground Between Sirius satellite radio unit terminal K (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the Sirius satellite radio unit and connector C-49 because the wiring harness is shorted to ground.
6		No	Replace the Sirius satellite radio unit because there is a short to ground inside the unit. (See SIRIUS SATELLITE RADIO UNIT REMOVAL/INSTALLATION .)
7	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-46 AND DLC-2 Disconnect connector C-46. Inspect for continuity at the following terminals: Between DLC-2 terminal L and body ground Between DLC-2 terminal K and body ground Is there continuity?	Yes	Repair or replace the wiring harness between DLC-2 and connector C-46 because the wiring harness is shorted to ground.
7		No	Go to the next step.
8	INSPECT FOR SHORT TO GROUND BETWEEN CLIMATE CONTROL UNIT AND CONNECTOR C-46 Inspect for continuity at the following terminals: Between climate control unit terminal 2E and body ground Between climate control unit terminal 2G and body ground Is there continuity?	Yes	Go to the next step.
8		No	Go to Step 10.
9	INSPECT CAN LINE IN CLIMATE CONTROL UNIT FOR SHORT TO GROUND Disconnect the climate control unit connector. Inspect for continuity at the following terminals: Between climate control unit terminal 2E (wiring harness side) and body ground Between climate control unit terminal 2G (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the climate control unit and connector C-46 because the wiring harness is shorted to ground.
9		No	Replace the climate control unit because there is a short to ground inside the unit. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER] .)
10	INSPECT FOR SHORT TO GROUND BETWEEN AUDIO UNIT AND CONNECTOR C-46 Inspect for continuity at the following terminals: Between audio unit terminal 1O and body ground Between audio unit terminal 1Q and body ground Is there continuity?	Yes	Go to the next step.
10		No	Go to Step 12.
11	INSPECT CAN LINE IN AUDIO UNIT FOR SHORT TO GROUND Disconnect the audio control connector. Inspect for continuity at the following terminals: Between audio unit terminal 1O (wiring harness side) and body ground Between audio unit terminal 1Q (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the audio unit and connector C-46 because the wiring harness is shorted to ground.
11		No	Replace the audio unit because there is a short to ground inside the unit. (See AUDIO UNIT REMOVAL/INSTALLATION .)
12	INSPECT FOR SHORT TO GROUND BETWEEN USB ADAPTER AND CONNECTOR C-46 Inspect for continuity at the following terminals: Between USB adapter terminal 1L and body ground Between USB adapter terminal 1K and body ground Is there continuity?	Yes	Go to the next step.
12		No	Go to step 14.
13	INSPECT CAN LINE IN USB ADAPTER FOR SHORT TO GROUND Disconnect the USB adapter connector. Inspect for continuity at the following terminals: Between USB adapter terminal 1L (wiring harness side) and body ground Between USB adapter terminal 1K (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the USB adapter and connector C-46 because the wiring harness is shorted to ground.
13		No	Replace the USB adapter because there is a short to ground inside the unit. (See USB ADAPTER REMOVAL/INSTALLATION .)
14	INSPECT FOR SHORT TO GROUND BETWEEN INSTRUMENT CLUSTER AND CONNECTOR C-46 Inspect for continuity at the following terminals: Instrument cluster terminal 2C and body ground Instrument cluster terminal 2E and body ground Is there continuity?	Yes	Go to the next step.
14		No	Repair or replace the wiring harness between connector C-49 and connector C-46 because the wiring harness is shorted to ground.
15	INSPECT CAN LINE IN INSTRUMENT CLUSTER FOR SHORT TO GROUND Disconnect the instrument cluster connector. Inspect for continuity at the following terminals: Between instrument cluster terminal 2C (wiring harness side) and body ground Between instrument cluster terminal 2E (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the instrument cluster and connector C-46 because the wiring harness is shorted to ground.
15		No	Replace the instrument cluster because there is a short to ground in the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
16	INSPECT CAN LINE IN MULTI INFORMATION DISPLAY/INFORMATION DISPLAY FOR SHORT TO GROUND Disconnect the multi information display connector. Inspect for continuity at the following terminals: Between multi information display/information display terminal 1V (wiring harness side) and body ground Between multi information display/information display terminal 1X (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the multi information display/information display and connector C-11 because the wiring harness is shorted to ground.
16		No	Replace the multi information display/information display because there is a short to ground in the multi information display/information display. (See MULTI INFORMATION DISPLAY REMOVAL/INSTALLATION .) (See INFORMATION DISPLAY REMOVAL/INSTALLATION .)

CAUTION

Step	INSPECTION		Action
1	INSPECT CAN LINE BETWEEN CONNECTOR C-11 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY Disconnect the negative battery cable. Disconnect connector C-11. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals L and K. Is the voltage between 1.5-3.5 V?	Yes	Go to Step 16.
1		No	Go to the next step.
2	INSPECT CAN LINE BETWEEN CONNECTOR C-49 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-49. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals L and K. Is the voltage between 1.5-3.5 V?	Yes	Go to the next step.
2		No	Go to Step 7.
3	INSPECT CAN LINE BETWEEN Bluetooth UNIT AND CONNECTOR C-49 FOR SHORT TO POWER SUPPLY Switch the ignition ON. Measure the voltage at Bluetooth unit terminals Y and Z. Is the voltage between 1.5-3.5 V?	Yes	Go to Step 5.
3		No	Go to the next step.
4	INSPECT CAN LINE IN Bluetooth UNIT FOR SHORT TO POWER SUPPLY Switch the ignition off. Disconnect the negative battery cable. Disconnect the Bluetooth unit connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at Bluetooth unit terminals Y and Z (wiring harness side). Is the voltage between 1.5-3.5 V?	Yes	Replace the Bluetooth unit because there is a short to the power supply in the Bluetooth unit. (See BLUETOOTH UNIT REMOVAL/INSTALLATION .)
4		No	Repair or replace the wiring harness between the Bluetooth unit and connector C-46 because the wiring harness is shorted to the power supply.
5	INSPECT CAN LINE BETWEEN SIRIUS SATELLITE RADIO UNIT AND CONNECTOR C-49 FOR SHORT TO POWER SUPPLY Switch the ignition ON. Measure the voltage at SIRIUS satellite radio unit terminals L and K. Is the voltage between 1.5-3.5 V?	Yes	Repair or replace the wiring harness between connector C-11 and connector C-49 because the wiring harness is shorted to the power supply.
5		No	Go to the next step.
6	INSPECT CAN LINE IN SIRIUS SATELLITE RADIO UNIT FOR SHORT TO POWER SUPPLY Switch the ignition off. Disconnect the negative battery cable. Disconnect the SIRIUS satellite radio unit connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at SIRIUS satellite radio unit terminals L and K (wiring harness-side). Is the voltage between 1.5-3.5 V?	Yes	Replace the SIRIUS satellite radio unit because there is a short to the power supply in the SIRIUS satellite radio unit. (See SIRIUS SATELLITE RADIO UNIT REMOVAL/INSTALLATION .)
6		No	Repair or replace the wiring harness between the SIRIUS satellite radio unit and connector C-46 because the wiring harness is shorted to the power supply.
7	INSPECT CAN LINE BETWEEN CONNECTOR C-46 AND DLC-2 FOR SHORT TO POWER SUPPLY Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-46. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals L and K. Is the voltage between 1.5-3.5 V?	Yes	Go to the next step.
7		No	Repair or replace the wiring harness between DLC-2 and connector C-46 because the wiring harness is shorted to the power supply.
8	INSPECT CAN LINE BETWEEN CLIMATE CONTROL UNIT AND CONNECTOR C-46 FOR SHORT TO POWER SUPPLY Switch the ignition ON. Measure the voltage at climate control unit terminals 2E and 2G. Is the voltage between 1.5-3.5 V?	Yes	Go to Step 10.
8		No	Go to the next step.
9	INSPECT CAN LINE IN CLIMATE CONTROL UNIT FOR SHORT TO POWER SUPPLY Switch the ignition off. Disconnect the negative battery cable. Disconnect the climate control unit connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at climate control unit terminals 2E and 2G (wiring harness side). Is the voltage between 1.5-3.5 V?	Yes	Replace the climate control unit because there is a short to the power supply in the climate control unit. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER] .)
9		No	Repair or replace the wiring harness between the climate control unit and connector C-46 because the wiring harness is shorted to the power supply.
10	INSPECT CAN LINE BETWEEN USB ADAPTER AND CONNECTOR C-46 FOR SHORT TO POWER SUPPLY Switch the ignition ON. Measure the voltage at the USB adapter terminals 1L and 1K. Is the voltage between 1.5-3.5 V?	Yes	Go to Step 12.
10		No	Go to the next step.
11	INSPECT CAN LINE IN USB ADAPTER FOR SHORT TO POWER SUPPLY Switch the ignition off. Disconnect the negative battery cable. Disconnect the USB adapter connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at USB adapter terminals 1L and 1K (wiring harness side). Is the voltage between 1.5-3.5 V?	Yes	Replace the USB adapter because there is a short to the power supply in the USB adapter. (See USB ADAPTER REMOVAL/INSTALLATION .)
11		No	Repair or replace the wiring harness between the USB adapter and connector C-46 because the wiring harness is shorted to the power supply.
12	INSPECT CAN LINE BETWEEN AUDIO UNIT AND CONNECTOR C-46 FOR SHORT TO POWER SUPPLY Switch the ignition ON. Measure the voltage at the audio unit terminals 1O and 1Q. Is the voltage between 1.5-3.5 V?	Yes	Go to step 14.
12		No	Go to the next step.
13	INSPECT CAN LINE AUDIO UNIT FOR SHORT TO POWER SUPPLY Switch the ignition off. Disconnect the negative battery cable. Disconnect the audio unit connector. Connect the negative battery cable (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at audio unit terminals 1O and 1Q (wiring harness side). Is the voltage between 1.5-3.5 V?	Yes	Replace the audio unit because there is a short to the power supply in the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION .)
13		No	Repair or replace the wiring harness between the audio unit and connector C-46 because the wiring harness is shorted to the power supply.
14	INSPECT CAN LINE BETWEEN INSTRUMENT CLUSTER AND CONNECTOR C-46 FOR SHORT TO POWER SUPPLY Switch the ignition ON. Measure the voltage at instrument cluster terminals 2C and 2E. Is the voltage between 1.5-3.5 V?	Yes	Repair or replace the wiring harness between connector C-49 and connector C-46 because the wiring harness is shorted to the power supply.
14		No	Go to the next step.
15	INSPECT CAN LINE IN INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY Switch the ignition off. Disconnect the negative battery cable. Disconnect the instrument cluster connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at instrument cluster terminals 2C and 2E (wiring harness side). Is the voltage between 1.5-3.5 V?	Yes	Replace the instrument cluster because there is a short to the power supply in the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
15		No	Repair or replace the wiring harness between the instrument cluster and connector C-46 because the wiring harness is shorted to the power supply.
16	INSPECT CAN LINE IN MULTI INFORMATION DISPLAY/INFORMATION DISPLAY FOR SHORT TO POWER SUPPLY Switch the ignition off. Disconnect the negative battery cable. Connect connector C-11. Disconnect the multi information display/ information display connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals L and K. Is the voltage between 1.5-3.5 V?	Yes	Replace the multi information display/information display because there is a short to the power supply in the multi information display/information display. (See MULTI INFORMATION DISPLAY REMOVAL/INSTALLATION .) (See INFORMATION DISPLAY REMOVAL/INSTALLATION .)
16		No	Repair or replace the wiring harness between the multi information display/information display and connector C-11 because the wiring harness is shorted to the power supply.

CAUTION

Step	INSPECTION		Action
1	INSPECT CAN LINE BETWEEN CONNECTOR C-11 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUIT Disconnect the negative battery cable. Disconnect connector C-11. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals L and K. Is the voltage at DLC-2 terminals L and K the same?	Yes	Go to the next step.
1		No	Go to Step 16.
2	INSPECT CAN LINE BETWEEN CONNECTOR C-49 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUIT Disconnect the negative battery cable. Disconnect connector C-49. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals L and K. Is the voltage at DLC-2 terminals L and K the same?	Yes	Go to Step 7.
2		No	Go to the next step.
3	INSPECT CAN LINE BETWEEN Bluetooth UNIT AND CONNECTOR C-49 FOR SHORT BETWEEN CIRCUITS Switch the ignition ON. Measure the voltage at Bluetooth unit terminals Y and Z. Is the voltage at Bluetooth unit terminals Y and Z the same?	Yes	Go to the next step.
3		No	Go to Step 5.
4	INSPECT CAN LINE IN Bluetooth UNIT FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-49. Disconnect the Bluetooth unit connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals L and K. Is the voltage at DLC-2 terminals L and K the same?	Yes	Repair or replace the wiring harness between the Bluetooth unit and connector C-49 because the wiring harness is shorted between circuits.
4		No	Replace the Bluetooth unit because there is a short between circuits in the Bluetooth unit. (See BLUETOOTH UNIT REMOVAL/INSTALLATION .)
5	INSPECT CAN LINE BETWEEN SIRIUS SATELLITE RADIO UNIT AND CONNECTOR C-49 FOR SHORT BETWEEN CIRCUITS Switch the ignition ON. Measure the voltage at SIRIUS satellite radio unit terminal L and K. Is the voltage at SIRIUS satellite radio unit terminal L and K the same?	Yes	Go to the next step.
5		No	Repair or replace the wiring harness between connector C-11 and connector C-49 because the wiring harness is shorted between circuits.
6	INSPECT CAN LINE IN SIRIUS SATELLITE RADIO UNIT FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-49. Disconnect the SIRIUS satellite radio unit connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals L and K. Is the voltage at DLC-2 terminals L and K the same?	Yes	Repair or replace the wiring harness between the SIRIUS satellite radio unit and connector C-49 because the wiring harness is shorted between circuits.
6		No	Replace the SIRIUS satellite radio unit because there is a short between circuits in the SIRIUS satellite radio unit. (See SIRIUS SATELLITE RADIO UNIT REMOVAL/INSTALLATION .)
7	INSPECT CAN LINE BETWEEN CONNECTOR C-46 AND DLC-2 FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-46. Verify the continuity between DLC-2 terminals L and K. Is there continuity?	Yes	Repair or replace the wiring harness between DLC-2 and connector C-46 because the wiring harness is shorted between circuits.
7		No	Go to the next step.
8	INSPECT CAN LINE BETWEEN CLIMATE CONTROL UNIT AND CONNECTOR C-46 FOR SHORT BETWEEN CIRCUITS Switch the ignition ON. Measure the voltage at climate control unit terminals 2E and 2G. Is the voltage at climate control unit terminals 2E and 2G the same?	Yes	Go to the next step.
8		No	Go to Step 10.
9	INSPECT CAN LINE IN CLIMATE CONTROL UNIT FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-46. Disconnect the climate control unit connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals L and K. Is the voltage at DLC-2 terminals L and K the same?	Yes	Repair or replace the wiring harness between the climate control unit and connector C-46 because the wiring harness is shorted between circuits.
9		No	Replace the climate control unit because there is a short between circuits in the climate control unit. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER] .)
10	INSPECT CAN LINE BETWEEN AUDIO UNIT AND CONNECTOR C-46 FOR SHORT BETWEEN CIRCUITS Switch the ignition ON. Measure the voltage at USB adapter terminals 1L and 1K. Is the voltage at USB adapter terminals 1L and 1K the same?	Yes	Go to the next step.
10		No	Go to Step 12.
11	INSPECT CAN LINE IN USB ADAPTER FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-46. Disconnect the USB adapter connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals L and K. Is the voltage at DLC-2 terminals L and K the same?	Yes	Repair or replace the wiring harness between the USB adapter and connector C-46 because the wiring harness is shorted between circuits.
11		No	Replace the USB adapter because there is a short between circuits in the USB adapter. (See USB ADAPTER REMOVAL/INSTALLATION .)
12	INSPECT CAN LINE BETWEEN AUDIO UNIT AND CONNECTOR C-46 FOR SHORT BETWEEN CIRCUITS Switch the ignition ON. Measure the voltage at audio unit terminals 1O and 1Q. Is the voltage at audio unit terminals 1O and 1Q the same?	Yes	Go to the next step.
12		No	Go to step 14.
13	INSPECT CAN LINE IN AUDIO UNIT FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Disconnect the connector C-46. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals L and K. Is the voltage at DLC-2 terminals L and K the same?	Yes	Repair or replace the wiring harness between the audio unit and connector C-46 because the wiring harness is shorted between circuits.
13		No	Replace the audio unit because there is a short between circuits in the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION .)
14	INSPECT CAN LINE BETWEEN INSTRUMENT CLUSTER AND CONNECTOR C-46 FOR SHORT BETWEEN CIRCUITS Switch the ignition ON. Measure the voltage at instrument cluster terminals 2C and 2E. Is the voltage at instrument cluster terminals 2C and 2E the same?	Yes	Go to the next step.
14		No	Repair or replace the wiring harness between connector C-49 and connector C-46 because the wiring harness is shorted between circuits.
15	INSPECT CAN LINE IN INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Disconnect connector C-46. Disconnect the instrument cluster connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals L and K. Is the voltage at DLC-2 terminals L and K the same?	Yes	Repair or replace the wiring harness between the instrument cluster and connector C-46 because the wiring harness is shorted between circuits.
15		No	Replace the instrument cluster because there is a short between circuits in the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
16	INSPECT CAN LINE IN MULTI INFORMATION DISPLAY/INFORMATION DISPLAY FOR SHORT BETWEEN CIRCUITS Switch the ignition off. Disconnect the negative battery cable. Connect connector C-11. Disconnect the multi information display/information display connector. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) Switch the ignition ON. Measure the voltage at DLC-2 terminals L and K. Is the voltage at DLC-2 terminals L and K the same?	Yes	Repair or replace the wiring harness between the multi information display/information display and connector C-11 because the wiring harness is shorted to the power supply.
16		No	Replace the multi information display/information display because there is a short between circuits in the multi information display/information display. (See MULTI INFORMATION DISPLAY REMOVAL/INSTALLATION .) (See INFORMATION DISPLAY REMOVAL/INSTALLATION .)

On-Board Diagnostic [Multiplex Communication System]: Other Mazda 3 BM

FOREWORD [MULTIPLEX COMMUNICATION SYSTEM]

Troubleshooting Procedure Flowchart. Scheme 64

Scheme 65

Scheme 66

HS-CAN

MS-CAN

ATX

PCM And Branch A System Wiring Diagram (MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo). Scheme 67

MTX

PCM And Connector C-02 (Open Circuit) (Open Circuit) System Wiring Diagram. Scheme 68

TCM And Branch A (Open Circuit) System Wiring Diagram. Scheme 69

Branch A And Connector C-02 (Open Circuit) System Wiring Diagram. Scheme 70

EHPAS Control Module And Branch B (Open Circuit) System Wiring Diagram. Scheme 71

Branch B And Connector C-41 (Open Circuit) System Wiring Diagram. Scheme 72

F

DSC HU/CM And Connector C-41 (Open Circuit) System Wiring Diagram. Scheme 73

ABS HU/CM And Connector C-41 (Open Circuit) System Wiring Diagram. Scheme 74

H

Connector C-41 And BCM (Open Circuit) System Wiring Diagram. Scheme 75

CAN Driver And BCM (Open Circuit) System Wiring Diagram. Scheme 76

J

With BSM system

BCM And Connector C-17 (Open Circuit) System Wiring Diagram. Scheme 77

Without BSM system

BCM And Connector C-17 (Open Circuit) System Wiring Diagram. Scheme 78

K

BSM Control Module (RH) And Connector C-24 (Open Circuit) System Wiring Diagram. Scheme 79

BSM Control Module (LH) And Connector C-24 (Open Circuit) System Wiring Diagram. Scheme 80

Branch C And Connector C-17 (Open Circuit) System Wiring Diagram. Scheme 81

SAS Control Module And Branch D (Open Circuit) System Wiring Diagram. Scheme 82

Branch D And Connector C-50 (Open Circuit) System Wiring Diagram. Scheme 83

Keyless Control Module And Connector C-50 (Open Circuit) System Wiring Diagram. Scheme 84

Q

Connector C-50 And Connector C-49 (Open Circuit) System Wiring Diagram. Scheme 85

AFS Control Module And Connector C-49 (Open Circuit) System Wiring Diagram. Scheme 86

Connector C-49 And Connector C-42 (Open Circuit) System Wiring Diagram. Scheme 87

Connector C-42 And Instrument Cluster (Open Circuit) System Wiring Diagram. Scheme 88

With car-navigation system

Multi Information Display/Information Display And Connector C-11 (Open Circuit) System Wiring Diagram. Scheme 89

Without car-navigation system

Information Display And Connector C-49 (Open Circuit) System Wiring Diagram. Scheme 90

Bluetooth Unit And Connector C-49 (Open Circuit) System Wiring Diagram. Scheme 91

Sirius Satellite Radio Unit And Connector C-49 (Open Circuit) System Wiring Diagram. Scheme 92

Connector C-49 And Connector C-46 (Open Circuit) System Wiring Diagram. Scheme 93

Climate Control Unit And Connector C-46 (Open Circuit) System Wiring Diagram. Scheme 94

Audio Unit And Connector C-46 (Open Circuit) System Wiring Diagram. Scheme 95

Instrument Cluster And Connector C-46 (Open Circuit) System Wiring Diagram. Scheme 96

Determination Procedure

More articles — On-Board Diagnostic [Multiplex Communication System]

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