DETERMINING SHORT TO GROUND LOCATION (MS-CAN) [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (L.H.D.)]

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Caution

•  Perform the following malfunction diagnosis only when it is diagnosed with a short to ground by CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (L.H.D.)]. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (L.H.D.)].)

System Wiring Diagram

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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 INSTRUMENT CLUSTER AND REAR BODY CONTROL MODULE (RBCM) •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect the rear body control module (RBCM) connector. •  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.
		No	Go to Step 12.
2	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-08 AND INSTRUMENT CLUSTER •  Disconnect connector C-08. •  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.
		No	Repair or replace the wiring harness between rear body control module (RBCM) and connector C-08 because the wiring harness is shorted to ground.
3	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-34 AND DLC-2 •  Disconnect connector C-34. •  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 the connector C-34 and DLC-2 because the wiring harness is shorted to ground.
		No	Go to the next step.
4	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-34 AND CLIMATE CONTROL UNIT •  Inspect for continuity at the following terminals: ―  Between climate control unit terminal 1O and body ground (with full-auto air conditioner) ―  Between climate control unit terminal 1Q and body ground (with full-auto air conditioner) ―  Between climate control unit terminal D and body ground (with manual air conditioner) ―  Between climate control unit terminal B and body ground (with manual air conditioner) •  Is there continuity?	Yes	Go to the next step.
		No	•  Go to Step 8. (with full-auto air conditioner) •  Go to Step 6. (with manual air conditioner)
5	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 1O (wiring harness side) and body ground (with full-auto air conditioner) ―  Between climate control unit terminal 1Q (wiring harness side) and body ground (with full-auto air conditioner) ―  Between climate control unit terminal D (wiring harness side) and body ground (with manual air conditioner) ―  Between climate control unit terminal B (wiring harness side) and body ground (with manual air conditioner) •  Is there continuity?	Yes	Repair or replace the wiring harness between the climate control unit and connector C-34 because the wiring harness is shorted to ground.
		No	Replace the climate control unit because there is a short to ground inside the climate control unit. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER].) (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER].)
6	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-34 AND INDICATOR UNIT •  Inspect for continuity at the following terminals: ―  Between indicator unit terminal E and body ground ―  Between indicator unit terminal G and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 8.
7	INSPECT CAN LINE IN INDICATOR UNIT FOR SHORT TO GROUND •  Disconnect the indicator unit connector. •  Inspect for continuity at the following terminals: ―  Between indicator unit terminal E (wiring harness side) and body ground ―  Between indicator unit terminal G (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the indicator unit and connector C-34 because the wiring harness is shorted to ground.
		No	Replace the indicator unit because there is a short to ground inside the indicator unit. (See INDICATOR UNIT REMOVAL/INSTALLATION.)
8	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-34 AND PARKING ASSIST UNIT (ULTRASONIC) •  Inspect for continuity at the following terminals: ―  Between parking assist unit (ultrasonic) terminal AA and body ground ―  Between parking assist unit (ultrasonic) terminal AB and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 10.
9	INSPECT CAN LINE IN PARKING ASSIST UNIT (ULTRASONIC) FOR SHORT TO GROUND •  Disconnect the parking assist unit (ultrasonic) connector. •  Inspect for continuity at the following terminals: ―  Between parking assist unit (ultrasonic) terminal AA (wiring harness side) and body ground ―  Between parking assist unit (ultrasonic) terminal AB (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the parking assist unit (ultrasonic) and connector C-34 because the wiring harness is shorted to ground.
		No	Replace the parking assist unit (ultrasonic) because there is a short to ground inside the parking assist unit (ultrasonic). (See PARKING ASSIST UNIT (ULTRASONIC) REMOVAL/INSTALLATION.)
10	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-34 AND INSTRUMENT CLUSTER •  Inspect for continuity at the following terminals: ―  Between instrument cluster terminal C and body ground ―  Between instrument cluster terminal E and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the connector C-34 and connector C-08 because the wiring harness is shorted to ground.
11	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 C (wiring harness side) and body ground ―  Between instrument cluster terminal E (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the instrument cluster and connector C-34 because the wiring harness is shorted to ground.
		No	Replace the instrument cluster because there is a short to ground in the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
12	INSPECT FOR SHORT TO GROUND BETWEEN BLIND SPOT MONITORING (BSM) CONTROL MODULE (LH) AND REAR BODY CONTROL MODULE (RBCM) •  Inspect for continuity at the following terminals: ―  Between blind spot monitoring (BSM) control module (LH) terminal D and body ground ―  Between blind spot monitoring (BSM) control module (LH) terminal E and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 15.
13	INSPECT FOR SHORT TO GROUND BETWEEN REAR BODY CONTROL MODULE (RBCM) AND CONNECTOR C-23 •  Disconnect connector C-23. •  Inspect for continuity at the following terminals: ―  Between blind spot monitoring (BSM) control module (LH) terminal D and body ground ―  Between blind spot monitoring (BSM) control module (LH) terminal E and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the rear body control module (RBCM) and connector C-23 because the wiring harness is shorted to ground.
14	INSPECT CAN LINE IN BLIND SPOT MONITORING (BSM) CONTROL MODULE (LH) FOR SHORT TO GROUND •  Disconnect the blind spot monitoring (BSM) control module (LH) connector. •  Inspect for continuity at the following terminals: ―  Between blind spot monitoring (BSM) control module (LH) terminal D (wiring harness side) and body ground ―  Between blind spot monitoring (BSM) control module (LH) terminal E (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the blind spot monitoring (BSM) control module (LH) and connector C-23 because the wiring harness is shorted to ground.
		No	Replace the blind spot monitoring (BSM) control module (LH) because there is a short to ground in the blind spot monitoring (BSM) control module (LH). (See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION [Except Australian specs.].)
15	INSPECT FOR SHORT TO GROUND BETWEEN REAR MOUNT CAMERA AND REAR BODY CONTROL MODULE (RBCM) •  Inspect for continuity at the following terminals: ―  Between rear mount camera terminal G and body ground ―  Between rear mount camera terminal H and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Replace the rear body control module (RBCM) because there is a short to ground in the rear body control module (RBCM). (See REAR BODY CONTROL MODULE (RBCM) REMOVAL/INSTALLATION.)
16	INSPECT FOR SHORT TO GROUND BETWEEN REAR BODY CONTROL MODULE (RBCM) AND CONNECTOR C-21 •  Disconnect connector C-21. •  Inspect for continuity at the following terminals: ―  Between rear mount camera terminal G and body ground ―  Between rear mount camera terminal H and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the rear body control module (RBCM) and connector C-21 because the wiring harness is shorted to ground.
17	INSPECT CAN LINE IN REAR MOUNT CAMERA FOR SHORT TO GROUND •  Disconnect the rear mount camera connector. •  Inspect for continuity at the following terminals: ―  Between rear mount camera terminal G (wiring harness side) and body ground ―  Between rear mount camera terminal H (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the rear mount camera and connector C-21 because the wiring harness is shorted to ground.
		No	Replace the rear mount camera because there is a short to ground in the rear mount camera. (See REAR MOUNT CAMERA REMOVAL/INSTALLATION.)