DETERMINING SHORT TO GROUND LOCATION (CAN-BUS No.3)

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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. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW.)

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 connector, touch it with a paper clip or similar thin pin without directly inserting a tester probe into the terminal.

Step	Inspection		Action
1	INSPECT FOR SHORT TO GROUND BETWEEN BODY CONTROL MODULE (BCM) AND CONNECTOR C-31 •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION) •  Disconnect the connector C-31. •  Inspect for continuity at the following terminals: ―  Between body control module (BCM) terminal 2L and body ground ―  Between body control module (BCM) terminal 2J and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 3.
2	INSPECT CAN LINE IN BODY CONTROL MODULE (BCM) FOR SHORT TO GROUND •  Disconnect the connector 2 which has body control module (BCM) terminals 2L and 2J. •  Inspect for continuity at the following terminals: ―  Between body control module (BCM) terminal 2L (wiring harness side) and body ground ―  Between body control module (BCM) terminal 2J (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the body control module (BCM) and connector C-31 because the wiring harness is shorted to ground.
		No	Replace the body control module (BCM) because there is a short to ground in the body control module (BCM). (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
3	INSPECT FOR SHORT TO GROUND BETWEEN FRONT COMBINATION LIGHT (LH) AND CONNECTOR C-31 •  Inspect for continuity at the following terminals: ―  Between front combination light (LH) terminal D and body ground ―  Between front combination light (LH) terminal E and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 5.
4	INSPECT CAN LINE IN FRONT COMBINATION LIGHT (LH) FOR SHORT TO GROUND •  Disconnect the front combination light (LH) connector. •  Inspect for continuity at the following terminals: ―  Between front combination light (LH) terminal D (wiring harness side) and body ground ―  Between front combination light (LH) terminal E (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the front combination light (LH) and connector C-31 because the wiring harness is shorted to ground.
		No	Replace the front combination light (LH) because there is a short to ground in the front combination light (LH). (See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION.)
5	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-31 AND CONNECTOR C-33 •  Disconnect the connector C-33. •  Connect the connector C-31. •  Inspect for continuity at the following terminals: ―  Between body control module (BCM) terminal 2L and body ground ―  Between body control module (BCM) terminal 2J and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-31 and connector C-33 because the wiring harness is shorted to ground.
		No	Go to the next step.
6	INSPECT FOR SHORT TO GROUND BETWEEN FRONT COMBINATION LIGHT (RH) AND CONNECTOR C-33 •  Inspect for continuity at the following terminals: ―  Between front combination light (RH) terminal D and body ground ―  Between front combination light (RH) terminal E and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 8.
7	INSPECT CAN LINE IN FRONT COMBINATION LIGHT (RH) FOR SHORT TO GROUND •  Disconnect the front combination light (RH) connector. •  Inspect for continuity at the following terminals: ―  Between front combination light (RH) terminal D (wiring harness side) and body ground ―  Between front combination light (RH) terminal E (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the front combination light (RH) and connector C-33 because the wiring harness is shorted to ground.
		No	Replace the front combination light (RH) because there is a short to ground in the front combination light (RH). (See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION.)
8	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-04 AND CONNECTOR C-33 •  Disconnect the connector C-04. •  Connect the connector C-33. •  Inspect for continuity at the following terminals: ―  Between body control module (BCM) terminal 2L and body ground ―  Between body control module (BCM) terminal 2J and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-04 and connector C-33 because the wiring harness is shorted to ground.
		No	Go to the next step.
9	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-36 AND CONNECTOR C-04 •  Disconnect the connector C-36. •  Connect the connector C-04. •  Inspect for continuity at the following terminals: ―  Between body control module (BCM) terminal 2L and body ground ―  Between body control module (BCM) terminal 2J and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-36 and connector C-04 because the wiring harness is shorted to ground.
		No	Go to the next step.
10	INSPECT FOR SHORT TO GROUND BETWEEN INSTRUMENT CLUSTER AND CONNECTOR C-36 •  Inspect for continuity at the following terminals: ―  Between instrument cluster terminal AK and body ground ―  Between instrument cluster terminal AM and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 12.
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 AK (wiring harness side) and body ground ―  Between instrument cluster terminal AM (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the instrument cluster and connector C-36 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 CONNECTOR C-39 AND CONNECTOR C-36 •  Disconnect the connector C-39. •  Connect the connector C-36. •  Inspect for continuity at the following terminals: ―  Between body control module (BCM) terminal 2L and body ground ―  Between body control module (BCM) terminal 2J and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-36 and connector C-39 because the wiring harness is shorted to ground.
		No	Go to the next step.
13	INSPECT FOR SHORT TO GROUND BETWEEN STEERING LOCK UNIT AND CONNECTOR C-39 •  Inspect for continuity at the following terminals: ―  Between steering lock unit terminal B and body ground ―  Between steering lock unit terminal D and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 15.
14	INSPECT CAN LINE IN STEERING LOCK UNIT FOR SHORT TO GROUND •  Disconnect the steering lock unit connector. •  Inspect for continuity at the following terminals: ―  Between steering lock unit terminal B (wiring harness side) and body ground ―  Between steering lock unit terminal D (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the steering lock unit and connector C-39 because the wiring harness is shorted to ground.
		No	Replace the steering lock unit because there is a short to ground in the steering lock unit. (See STEERING LOCK UNIT REMOVAL/INSTALLATION.)
15	INSPECT FOR SHORT TO GROUND BETWEEN CLIMATE CONTROL UNIT AND CONNECTOR C-39 •  Inspect for continuity at the following terminals: ―  Between climate control unit terminal 1K and body ground ―  Between climate control unit terminal 1N and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 17.
16	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 1K (wiring harness side) and body ground ―  Between climate control unit terminal 1N (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the climate control unit and connector C-39 because the wiring harness is shorted to ground.
		No	Replace the climate control unit because there is a short to ground in the climate control unit. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION.)
17	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-39 AND CONNECTOR C-38 •  Disconnect the connector C-38. •  Connect the connector C-39. •  Inspect for continuity at the following terminals: ―  Between body control module (BCM) terminal 2L and body ground ―  Between body control module (BCM) terminal 2J and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-38 and connector C-39 because the wiring harness is shorted to ground.
		No	Go to the next step.
18	INSPECT FOR SHORT TO GROUND BETWEEN ACTIVE DRIVING DISPLAY AND CONNECTOR C-38 •  Inspect for continuity at the following terminals: ―  Between active driving display terminal G and body ground ―  Between active driving display terminal I and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 20.
19	INSPECT CAN LINE IN ACTIVE DRIVING DISPLAY FOR SHORT TO GROUND •  Disconnect the active driving display connector. •  Inspect for continuity at the following terminals: ―  Between active driving display terminal G (wiring harness side) and body ground ―  Between active driving display terminal I (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the active driving display and connector C-38 because the wiring harness is shorted to ground.
		No	Replace the active driving display because there is a short to ground in the active driving display. (See ACTIVE DRIVING DISPLAY REMOVAL/INSTALLATION.)
20	INSPECT FOR SHORT TO GROUND BETWEEN STEERING ANGLE SENSOR AND CONNECTOR C-38 •  Inspect for continuity at the following terminals: ―  Between steering angle sensor terminal B and body ground ―  Between steering angle sensor terminal C and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 22.
21	INSPECT CAN LINE IN STEERING ANGLE SENSOR FOR SHORT TO GROUND •  Disconnect the steering angle sensor connector. •  Inspect for continuity at the following terminals: ―  Between steering angle sensor terminal B (wiring harness side) and body ground ―  Between steering angle sensor terminal C (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the steering angle sensor and connector C-38 because the wiring harness is shorted to ground.
		No	Replace the steering angle sensor because there is a short to ground in the steering angle sensor. (See STEERING ANGLE SENSOR REMOVAL/INSTALLATION.)
22	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-38 AND CONNECTOR C-13 •  Disconnect the connector C-13. •  Connect the connector C-38. •  Inspect for continuity at the following terminals: ―  Between body control module (BCM) terminal 2L and body ground ―  Between body control module (BCM) terminal 2J and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-38 and connector C-13 because the wiring harness is shorted to ground.
		No	Go to the next step.
23	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-41 AND CONNECTOR C-13 •  Disconnect the connector C-41. •  Connect the connector C-13. •  Inspect for continuity at the following terminals: ―  Between body control module (BCM) terminal 2L and body ground ―  Between body control module (BCM) terminal 2J and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-41 and connector C-13 because the wiring harness is shorted to ground.
		No	Go to the next step.
24	INSPECT FOR SHORT TO GROUND BETWEEN DOOR-ELECTRICAL SUPPLY UNIT (PASSENGER'S SIDE) AND CONNECTOR C-41 •  Inspect for continuity at the following terminals: ―  Between door-electrical supply unit (passenger's side) terminal 1A and body ground ―  Between door-electrical supply unit (passenger's side) terminal 1B and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 27.
25	INSPECT FOR SHORT TO GROUND BETWEEN DOOR-ELECTRICAL SUPPLY UNIT (PASSENGER'S SIDE) AND CONNECTOR C-23 •  Disconnect the connector C-23. •  Inspect for continuity at the following terminals: ―  Between door-electrical supply unit (passenger's side) terminal 1A and body ground ―  Between door-electrical supply unit (passenger's side) terminal 1B and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the connector C-41 and connector C-23 because the wiring harness is shorted to ground.
26	INSPECT CAN LINE IN DOOR-ELECTRICAL SUPPLY UNIT (PASSENGER'S SIDE) FOR SHORT TO GROUND •  Disconnect the door-electrical supply unit (passenger's side) connector. •  Inspect for continuity at the following terminals: ―  Between door-electrical supply unit (passenger's side) terminal 1A (wiring harness side) and body ground ―  Between door-electrical supply unit (passenger's side) terminal 1B (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the door-electrical supply unit (passenger's side) and connector C-23 because the wiring harness is shorted to ground.
		No	Replace the door-electrical supply unit (passenger's side) because there is a short to ground in the door-electrical supply unit (passenger's side). (See DOOR-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION.)
27	INSPECT FOR SHORT TO GROUND BETWEEN LF CONTROL UNIT AND CONNECTOR C-41 •  Inspect for continuity at the following terminals: ―  Between LF control unit terminal M and body ground ―  Between LF control unit terminal P and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 29.
28	INSPECT CAN LINE IN LF CONTROL UNIT FOR SHORT TO GROUND •  Disconnect the LF control unit connector. •  Inspect for continuity at the following terminals: ―  Between LF control unit terminal M (wiring harness side) and body ground ―  Between LF control unit terminal P (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the LF control unit and connector C-41 because the wiring harness is shorted to ground.
		No	Replace the LF control unit because there is a short to ground in the LF control unit. (See LF CONTROL UNIT REMOVAL/INSTALLATION.)
29	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-41 AND CONNECTOR C-40 •  Disconnect the connector C-40. •  Connect the connector C-41. •  Inspect for continuity at the following terminals: ―  Between body control module (BCM) terminal 2L and body ground ―  Between body control module (BCM) terminal 2J and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-40 and connector C-41 because the wiring harness is shorted to ground.
		No	Go to the next step.
30	INSPECT FOR SHORT TO GROUND BETWEEN DOOR-ELECTRICAL SUPPLY UNIT (DRIVER'S SIDE) AND CONNECTOR C-40 •  Inspect for continuity at the following terminals: ―  Between door-electrical supply unit (driver's side) terminal 1A and body ground ―  Between door-electrical supply unit (driver's side) terminal 1B and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 33.
31	INSPECT FOR SHORT TO GROUND BETWEEN DOOR-ELECTRICAL SUPPLY UNIT (DRIVER'S SIDE) AND CONNECTOR C-22 •  Disconnect the connector C-22. •  Inspect for continuity at the following terminals: ―  Between door-electrical supply unit (driver's side) terminal 1A and body ground ―  Between door-electrical supply unit (driver's side) terminal 1B and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the connector C-40 and connector C-22 because the wiring harness is shorted to ground.
32	INSPECT CAN LINE IN DOOR-ELECTRICAL SUPPLY UNIT (DRIVER'S SIDE) FOR SHORT TO GROUND •  Disconnect the door-electrical supply unit (driver's side) connector. •  Inspect for continuity at the following terminals: ―  Between door-electrical supply unit (driver's side) terminal 1A (wiring harness side) and body ground ―  Between door-electrical supply unit (driver's side) terminal 1B (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the door-electrical supply unit (driver's side) and connector C-22 because the wiring harness is shorted to ground.
		No	Replace the door-electrical supply unit (driver's side) because there is a short to ground in the door-electrical supply unit (driver's side). (See DOOR-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION.)
33	INSPECT FOR SHORT TO GROUND BETWEEN DASH-ELECTRICAL SUPPLY UNIT AND CONNECTOR C-40 •  Inspect for continuity at the following terminals: ―  Between dash-electrical supply unit terminal 1K and body ground ―  Between dash-electrical supply unit terminal 1L and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 35.
34	INSPECT CAN LINE IN DASH-ELECTRICAL SUPPLY UNIT FOR SHORT TO GROUND •  Disconnect the dash-electrical supply unit connector. •  Inspect for continuity at the following terminals: ―  Between dash-electrical supply unit terminal 1K (wiring harness side) and body ground ―  Between dash-electrical supply unit terminal 1I (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the dash-electrical supply unit and connector C-40 because the wiring harness is shorted to ground.
		No	Replace the dash-electrical supply unit because there is a short to ground in the dash-electrical supply unit. (See DASH-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION.)
35	INSPECT CAN LINE IN ELECTRICAL SUPPLY UNIT (ESU) FOR SHORT TO GROUND •  Disconnect the electrical supply unit (ESU) connector. •  Inspect for continuity at the following terminals: ―  Between electrical supply unit (ESU) terminal 3A (wiring harness side) and body ground ―  Between electrical supply unit (ESU) terminal 3C (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the electrical supply unit (ESU) and connector C-40 because the wiring harness is shorted to ground.
		No	Replace the electrical supply unit (ESU) because there is a short to ground in the electrical supply unit (ESU). (See ELECTRICAL SUPPLY UNIT (ESU) REMOVAL/INSTALLATION.)