DETERMINING SHORT TO GROUND LOCATION (MS-CAN) [L.H.D.]

id100225000900

Caution

•  Perform the following malfunction diagnosis only when it is diagnosed with a short to ground by CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [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 CONNECTOR INSTRUMENT CLUSTER AND REAR BODY CONTROL MODULE (RBCM) •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Disconnect the rear body control module (RBCM). •  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 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 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	Go to Step 4.
		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.)
3	INSPECT FOR SHORT TO GROUND BETWEEN BLIND SPOT MONITORING (BSM) CONTROL MODULE (LH) AND CONNECTOR C-16 •  Connect connector C-16. •  Inspect for continuity at the following terminals: ―  Between blind spot monitoring (BSM) control module (LH) terminal C and body ground ―  Between blind spot monitoring (BSM) control module (LH) terminal D 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-16 because the wiring harness is shorted to ground.
4	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 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.)
5	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-45 AND INSTRUMENT CLUSTER •  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	Go to the next step.
		No	With 360° view monitor control module •  Go to Step 15. Without 360° view monitor control module •  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.
6	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-14 AND INSTRUMENT CLUSTER •  Disconnect 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	Go to the next step.
		No	Repair or replace the wiring harness between connector C-14 and connector C-45 because the wiring harness is shorted to ground.
7	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-63 AND INSTRUMENT CLUSTER •  Disconnect 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 DLC-2 because the wiring harness is shorted to ground.
		No	Go to the next step.
8	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-14 AND CONNECTOR C-63 •  Connect connector C-14. •  Connect connector C-63. •  Inspect for continuity at the following terminals: ―  Between rear body control module (RBCM) terminal 3E (wiring harness side) and body ground ―  Between rear body control module (RBCM) terminal 3G (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between connector C-14 and connector C-63 because the wiring harness is shorted to ground.
		No	Go to the next step.
9	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-14 AND CONNECTOR C-63 •  Connect connector C-64. •  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-64 because the wiring harness is shorted to ground.
		No	Go to the next step.
10	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-64 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 12.
11	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-64 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.)
12	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-64 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 14.
13	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-64 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.)
14	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.)
15	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	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.
16	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.)