DETERMINING SHORT TO GROUND LOCATION (MS-CAN) [TYPE-A]

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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 [TYPE-A]. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [TYPE-A].)

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 CONNECTOR C-64 AND REAR BODY CONTROL MODULE (RBCM) •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Disconnect connector C-64. •  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 4.
		No	Go to the next step.
2	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-64 AND DLC-2 •  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 connector C-64 and DLC-2 because the wiring harness is shorted to ground.
		No	Go to the next step.
3	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 1C (wiring harness side) and body ground ―  Between instrument cluster terminal 1E (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the instrument cluster and connector C-64 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.)
4	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-64 AND CONNECTORS C-78, C-79 •  Disconnect connectors C-78, C-79. •  Connect connector C-64. •  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 connector C-64 and connectors C-78, C-79 because the wiring harness is shorted to ground.
		No	Go to the next step.
5	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS C-78, C-79 AND WIRELESS CHARGER (Qi) •  Inspect for continuity at the following terminals: ―  Between wireless charger (Qi) terminal F and body ground ―  Between wireless charger (Qi) terminal D and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 7.
6	INSPECT CAN LINE IN WIRELESS CHARGER (Qi) FOR SHORT TO GROUND •  Disconnect the wireless charger (Qi) connector. •  Inspect for continuity at the following terminals: ―  Between wireless charger (Qi) terminal F (wiring harness side) and body ground ―  Between wireless charger (Qi) terminal D (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between wireless charger (Qi) and connectors C-78, C-79 because the wiring harness is shorted to ground.
		No	Replace the wireless charger (Qi) because there is a short to ground inside the wireless charger (Qi). (See WIRELESS CHARGER (Qi) REMOVAL/INSTALLATION.)
7	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS C-78, C-79 AND CONNECTOR C-63 •  Disconnect connector C-63. •  Connect connectors C-78, C-79. •  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 connectors C-78, C-79 and connector C-63 because the wiring harness is shorted to ground.
		No	Go to the next step.
8	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-63 AND FRONT CLIMATE CONTROL UNIT •  Inspect for continuity at the following terminals: ―  Between front climate control unit terminal 1K and body ground ―  Between front climate control unit terminal 1M and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 10.
9	INSPECT CAN LINE IN FRONT CLIMATE CONTROL UNIT FOR SHORT TO GROUND •  Disconnect the front climate control unit connector. •  Inspect for continuity at the following terminals: ―  Between front climate control unit terminal 1K (wiring harness side) and body ground ―  Between front climate control unit terminal 1M (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the front climate control unit and connector C-63 because the wiring harness is shorted to ground.
		No	Replace the front climate control unit because there is a short to ground in the front climate control unit. (See FRONT CLIMATE CONTROL UNIT REMOVAL/INSTALLATION.)
10	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-63 AND PARKING ASSIST UNIT •  Inspect for continuity at the following terminals: ―  Between parking assist unit terminal AA and body ground ―  Between parking assist unit terminal AB and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 12.
11	INSPECT CAN LINE IN PARKING ASSIST UNIT FOR SHORT TO GROUND •  Disconnect the parking assist unit connector. •  Inspect for continuity at the following terminals: ―  Between parking assist unit terminal AA (wiring harness side) and body ground ―  Between parking assist unit terminal AB (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the parking assist unit and connector C-63 because the wiring harness is shorted to ground.
		No	Replace the parking assist unit because there is a short to ground in the parking assist unit. (See PARKING ASSIST UNIT REMOVAL/INSTALLATION.)
12	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-63 AND CONNECTOR C-14 •  Disconnect connector C-14. •  Connect connector C-63. •  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 connector C-63 and connector C-14 because the wiring harness is shorted to ground.
		No	Go to the next step.
13	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-14 AND CONNECTOR C-45 •  Disconnect connector C-45. •  Connect connector C-14. •  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 connector C-14 and connector C-45 because the wiring harness is shorted to ground.
		No	Go to the next step.
14	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-45 AND 360° VIEW MONITOR CONTROL MODULE •  Inspect for continuity at the following terminals: ―  Between 360° view monitor control module terminal AE and body ground ―  Between 360° view monitor control module terminal AF and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 16.
15	INSPECT CAN LINE IN 360° VIEW MONITOR CONTROL MODULE FOR SHORT TO GROUND •  Disconnect the 360° view monitor control module connector. •  Inspect for continuity at the following terminals: ―  Between 360° view monitor control module terminal AE (wiring harness side) and body ground ―  Between 360° view monitor control module terminal AF (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the 360° view monitor control module and connector C-45 because the wiring harness is shorted to ground.
		No	Replace the 360° view monitor control module because there is a short to ground in the 360° view monitor control module. (See 360°VIEW MONITOR CONTROL MODULE REMOVAL/INSTALLATION.)
16	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-45 AND REAR BODY CONTROL MODULE (RBCM) •  Disconnect the rear body control module (RBCM). •  Connect connector C-45. •  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 rear body control module (RBCM) and connector C-45 because the wiring harness is shorted to ground.
		No	Go to the next step.
17	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 rear body control module (RBCM) terminal 4I (wiring harness side) and body ground ―  Between rear body control module (RBCM) terminal 4L (wiring harness side) 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.)
18	INSPECT FOR SHORT TO GROUND BETWEEN BLIND SPOT MONITORING (BSM) CONTROL MODULE (LH) AND CONNECTOR C-16 •  Disconnect connector C-16. •  Inspect for continuity at the following terminals: ―  Between rear body control module (RBCM) terminal 4L (wiring harness side) and body ground ―  Between rear body control module (RBCM) terminal 4I (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the rear body control module (RBCM) and connector C-16 because the wiring harness is shorted to ground.
		No	Go to the next step.
19	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. •  Connect connector C-16. •  Inspect for continuity at the following terminals: ―  Between blind spot monitoring (BSM) control module (LH) terminal C (wiring harness side) and body ground ―  Between blind spot monitoring (BSM) control module (LH) terminal D (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-16 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.)