DETERMINING SHORT TO GROUND LOCATION (MS-CAN) [SKYACTIV-D 2.2 (L.H.D.)]

id100205000900

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-D 2.2 (L.H.D.)]. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-D 2.2 (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 C-08 AND INSTRUMENT CLUSTER •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) •  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	Go to Step 11.
2	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS 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 connector C-34 and DLC-2 because the wiring harness is shorted to ground.
		No	Go to the next step.
3	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-34 AND PARKING SENSOR CONTROL MODULE •  Inspect for continuity at the following terminals: ―  Between parking sensor control module terminal AA and body ground ―  Between parking sensor control module terminal AB and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 5.
4	INSPECT CAN LINE IN PARKING SENSOR CONTROL MODULE FOR SHORT TO GROUND •  Disconnect the parking sensor control module connector. •  Inspect for continuity at the following terminals: ―  Between parking sensor control module terminal AA (wiring harness side) and body ground ―  Between parking sensor control module terminal AB (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the parking sensor control module and connector C-34 because the wiring harness is shorted to ground.
		No	Replace the parking sensor control module because there is a short to ground in the parking sensor control module. (See PARKING SENSOR CONTROL MODULE REMOVAL/INSTALLATION.)
5	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-34 AND CLIMATE CONTROL UNIT OR CLOCK •  Inspect for continuity at the following terminals: ―  Between climate control unit terminal 1S and body ground (with full-auto air conditioner) ―  Between climate control unit terminal 1U and body ground (with full-auto air conditioner) ―  Between clock terminal E and body ground (with manual air conditioner) ―  Between clock terminal G and body ground (with manual air conditioner) •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 7.
6	INSPECT CAN LINE IN CLIMATE CONTROL UNIT OR CLOCK FOR SHORT TO GROUND •  Disconnect the climate control unit connector or clock connector. •  Inspect for continuity at the following terminals: ―  Between climate control unit terminal 1S (wiring harness side) and body ground (with full-auto air conditioner) ―  Between climate control unit terminal 1U (wiring harness side) and body ground (with full-auto air conditioner) ―  Between clock terminal E (wiring harness side) and body ground (with manual air conditioner) ―  Between clock terminal G (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 or clock and connector C-34 because the wiring harness is shorted to ground.
		No	Replace the climate control unit or the clock because there is a short to ground inside the climate control unit or the clock. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER].) (See CLOCK REMOVAL/INSTALLATION.)
7	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-34 AND AUDIO UNIT •  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.
		No	Go to Step 9.
8	INSPECT CAN LINE IN AUDIO UNIT FOR SHORT TO GROUND •  Disconnect the audio unit 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-34 because the wiring harness is shorted to ground.
		No	Replace the audio unit because there is a short to ground inside the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION.)
9	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 connectors C-08 and C-34 because the wiring harness is shorted to ground.
10	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.)
11	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS C-14 AND C-08 •  Disconnect connector C-14. •  Connect 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	Repair or replace the wiring harness between connectors C-14 and C-08 because the wiring harness is shorted to ground.
		No	Go to the next step.
12	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-14 AND CONNECTORS C-47 AND C-48 •  Disconnect connectors C-47 and C-48. •  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 connectors C-47 and C-48 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 REAR VEHICLE MONITORING CONTROL MODULE (RH) AND CONNECTORS C-47 AND C-48 •  Inspect for continuity at the following terminals: ―  Between rear vehicle monitoring control module (RH) terminal L and body ground (connector 12-pin type) ―  Between rear vehicle monitoring control module (RH) terminal I and body ground (connector 12-pin type) ―  Between rear vehicle monitoring control module (RH) terminal A and body ground (connector 10-pin type) ―  Between rear vehicle monitoring control module (RH) terminal D and body ground (connector 10-pin type) •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 16.
14	INSPECT FOR SHORT TO GROUND BETWEEN REAR VEHICLE MONITORING CONTROL MODULE (RH) AND CONNECTOR C-43 •  Disconnect connector C-43. •  Inspect for continuity at the following terminals: ―  Between rear vehicle monitoring control module (RH) terminal L and body ground (connector 12-pin type) ―  Between rear vehicle monitoring control module (RH) terminal I and body ground (connector 12-pin type) ―  Between rear vehicle monitoring control module (RH) terminal A and body ground (connector 10-pin type) ―  Between rear vehicle monitoring control module (RH) terminal D and body ground (connector 10-pin type) •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between connector C-43 and connectors C-47 and C-48 because the wiring harness is shorted to ground.
15	INSPECT CAN LINE IN REAR VEHICLE MONITORING CONTROL MODULE (RH) FOR SHORT TO GROUND •  Disconnect the rear vehicle monitoring control module connector. •  Inspect for continuity at the following terminals: ―  Between rear vehicle monitoring control module (RH) terminal L (wiring harness side) and body ground (connector 12-pin type) ―  Between rear vehicle monitoring control module (RH) terminal I (wiring harness side) and body ground (connector 12-pin type) ―  Between rear vehicle monitoring control module (RH) terminal A (wiring harness side) and body ground (connector 10-pin type) ―  Between rear vehicle monitoring control module (RH) terminal D (wiring harness side) and body ground (connector 10-pin type) •  Is there continuity?	Yes	Repair or replace the wiring harness between the rear vehicle monitoring control module (RH) and connector C-43 because the wiring harness is shorted to ground.
		No	Replace the rear vehicle monitoring control module (RH) because there is a short to ground in the rear vehicle monitoring control module (RH). (See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
16	INSPECT FOR SHORT TO GROUND BETWEEN REAR BODY CONTROL MODULE (RBCM) AND REAR MOUNT CAMERA •  Disconnect the rear body control module (RBCM) connector. •  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	Go to Step 19.
17	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 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	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.
		No	Go to the next step.
18	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.)
19	INSPECT CAN LINE INSIDE REAR BODY CONTROL MODULE (RBCM) FOR SHORT TO GROUND •  Inspect for continuity at the following terminals: ―  Between rear body control module (RBCM) terminal 4G (wiring harness side) and body ground ―  Between rear body control module (RBCM) terminal 4J (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the rear body control module (RBCM) and connectors C-47 and C-48 because the wiring harness is shorted to ground.
		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.)