DETERMINING SHORT TO GROUND LOCATION (HS-CAN) [SKYACTIV-D 1.5]

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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 [SKYACTIV-D 1.5].)

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 BCM AND INSTRUMENT CLUSTER •  Switch the ignition off. •  DISCONNECT the Negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the connector 2 and 3 which has BCM terminals 3C,3D and 2D,2C. •  Inspect for continuity at the following terminals: ―  Between DLC-2 terminal F and body ground ―  Between DLC-2 terminal E and body ground •  Is there continuity?	Yes	Go to Step 17.
		No	Go to the next step.
2	INSPECT CAN LINE IN BCM FOR SHORT TO GROUND •  Inspect for continuity at the following terminals: ―  Between BCM terminal 3C and body ground ―  Between BCM terminal 3D and body ground •  Is there continuity?	Yes	Replace the BCM because there is a short to ground in the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
		No	Go to the next step.
3	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS C-28 AND C-29 AND BCM •  Connect the connector 2 and 3 which has BCM terminals 3C,3D and 2D,2C. •  Disconnect the connectors C-28 and C-29. •  Inspect for continuity at the following terminals: ―  Between DLC-2 terminal F and body ground ―  Between DLC-2 terminal E and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connectors C-28 and C-29 and BCM because the wiring harness is shorted to ground.
		No	Go to the next step.
4	INSPECT FOR SHORT TO GROUND BETWEEN AUTO LEVELING CONTROL MODULE AND CONNECTORS C-28 AND C-29 •  Inspect for continuity at the following terminals: ―  Between auto leveling control module terminal AB and body ground ―  Between auto leveling control module terminal AD and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 6.
5	INSPECT CAN LINE IN AUTO LEVELING CONTROL MODULE FOR SHORT TO GROUND •  Disconnect the auto leveling control module connector. •  Inspect for continuity at the following terminals: ―  Between auto leveling control module terminal AB (wiring harness side) and body ground ―  Between auto leveling control module terminal AD (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the auto leveling control module and connectors C-28 and C-29 because the wiring harness is shorted to ground.
		No	Replace the auto leveling control module because there is a short to ground in the auto leveling control module. (See AUTO LEVELING CONTROL MODULE REMOVAL/INSTALLATION.)
6	INSPECT FOR SHORT TO GROUND BETWEEN DC-DC CONVERTER (i-ELOOP) AND CONNECTORS C-28 AND C-29 •  Inspect for continuity at the following terminals: ―  Between DC-DC converter (i-ELOOP) terminal 1M and body ground ―  Between DC-DC converter (i-ELOOP) terminal 1N and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 8.
7	INSPECT CAN LINE IN DC-DC CONVERTER (i-ELOOP) FOR SHORT TO GROUND •  Disconnect the DC-DC converter (i-ELOOP) connector. •  Inspect for continuity at the following terminals: ―  Between DC-DC converter (i-ELOOP) terminal 1M (wiring harness side) and body ground ―  Between DC-DC converter (i-ELOOP) terminal 1N (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the DC-DC converter (i-ELOOP) and connectors C-28 and C-29 because the wiring harness is shorted to ground.
		No	Replace the DC-DC converter (i-ELOOP) because there is a short to ground in the DC-DC converter (i-ELOOP). (See DC-DC CONVERTER (i-ELOOP) REMOVAL/INSTALLATION [WITH i-ELOOP (SKYACTIV-D 1.5)].)
8	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-01 AND CONNECTORS C-28 AND C-29 •  Connect the connectors C-28 and C-29. •  Disconnect the connector C-01. •  Inspect for continuity at the following terminals: ―  Between DLC-2 terminal F and body ground ―  Between DLC-2 terminal E and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-01 and connectors C-28 and C-29 because the wiring harness is shorted to ground.
		No	Go to the next step.
9	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-01 AND PCM •  Connect the connector C-01. •  Inspect for continuity at the following terminals: ―  Between PCM terminal 2C and body ground ―  Between PCM terminal 2D and body ground •  Is there continuity?	Yes	Go to Step 13.
		No	Go to the next step.
10	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-01 AND CONNECTORS C-31 AND C-32 •  Disconnect the connectors C-31 and C-32. •  Connect the connector C-01. •  Inspect for continuity at the following terminals: ―  Between DLC-2 terminal F and body ground ―  Between DLC-2 terminal E and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-01 and connectors C-31 and C-32 because the wiring harness is shorted to ground.
		No	Go to the next step.
11	INSPECT FOR SHORT TO GROUND BETWEEN TCM AND CONNECTORS C-31 AND C-32 •  Inspect for continuity at the following terminals: ―  Between TCM terminal E and body ground ―  Between TCM terminal F and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the connector C-01 and connectors C-31 and C-32 because the wiring harness is shorted to ground.
12	INSPECT CAN LINE IN TCM FOR SHORT TO GROUND •  Disconnect the TCM connector. •  Inspect for continuity at the following terminals: ―  Between TCM terminal E (wiring harness side) and body ground ―  Between TCM terminal F (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the TCM and connectors C-31 and C-32 because the wiring harness is shorted to ground.
		No	Replace the TCM because there is a short to ground in the TCM. (See CONTROL VALVE BODY REMOVAL/INSTALLATION [CW6A-EL].) (See CONTROL VALVE BODY REMOVAL/INSTALLATION [EW6A-EL].)
13	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-30 AND CONNECTOR C-01 •  Connect the connector C-01. •  Disconnect the connector C-30. •  Inspect for continuity at the following terminals: ―  Between DLC-2 terminal F and body ground ―  Between DLC-2 terminal E and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-30 and connector C-01 because the wiring harness is shorted to ground.
		No	Go to the next step.
14	INSPECT FOR SHORT TO GROUND BETWEEN DSC HU/CM AND CONNECTOR C-30 •  Inspect for continuity at the following terminals: ―  Between DSC HU/CM terminal AF and body ground ―  Between DSC HU/CM terminal AC and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 16.
15	INSPECT CAN LINE IN DSC HU/CM FOR SHORT TO GROUND •  Disconnect the DSC HU/CM connector. •  Inspect for continuity at the following terminals: ―  Between DSC HU/CM terminal AF (wiring harness side) and body ground ―  Between DSC HU/CM terminal AC (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the DSC HU/CM and connector C-30 because the wiring harness is shorted to ground.
		No	Replace the DSC HU/CM because there is a short to ground in the DSC HU/CM. (See DSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)
16	INSPECT CAN LINE IN PCM FOR SHORT TO GROUND •  Disconnect the PCM connector. •  Inspect for continuity at the following terminals: ―  Between PCM terminal 2C (wiring harness side) and body ground ―  Between PCM terminal 2D (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the PCM and connector C-30 because the wiring harness is shorted to ground.
		No	Replace the PCM because there is a short to ground in the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)
17	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-07 AND INSTRUMENT CLUSTER •  Disconnect the connector C-07. •  Inspect for continuity at the following terminals: ―  Between DLC-2 terminal F and body ground ―  Between DLC-2 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-07 and BCM because the wiring harness is shorted to ground.
18	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-07 AND CONNECTOR C-11 •  Connect the connector C-07. •  Disconnect the connector C-11. •  Inspect for continuity at the following terminals: ―  Between BCM terminal 2D and body ground ―  Between BCM terminal 2C and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-07 and connector C-11 because the wiring harness is shorted to ground.
		No	Go to the next step.
19	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-11 AND INSTRUMENT CLUSTER •  Inspect for continuity at the following terminals: ―  Between DLC-2 terminal F and body ground ―  Between DLC-2 terminal E and body ground •  Is there continuity?	Yes	Go to Step 26.
		No	Go to the next step.
20	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS C-51 AND C-52 AND CONNECTOR C-11 •  Connect the connector C-11. •  Disconnect the connectors C-51 and C-52. •  Inspect for continuity at the following terminals: ―  Between DLC-2 terminal F and body ground ―  Between DLC-2 terminal E and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connectors C-51 and C-52 and connector C-11 because the wiring harness is shorted to ground.
		No	Go to the next step.
21	INSPECT FOR SHORT TO GROUND BETWEEN LASER SENSOR AND CONNECTORS C-51 AND C-52 •  Inspect for continuity at the following terminals: ―  Between laser sensor terminal D and body ground ―  Between laser sensor terminal C and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 23.
22	INSPECT CAN LINE IN LASER SENSOR FOR SHORT TO GROUND •  Disconnect the laser sensor connector. •  Inspect for continuity at the following terminals: ―  Between laser sensor terminal D (wiring harness side) and body ground ―  Between laser sensor terminal C (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the laser sensor and connectors C-51 and C-52 because the wiring harness is shorted to ground.
		No	Replace the laser sensor because there is a short to ground in the laser sensor. (See LASER SENSOR REMOVAL/INSTALLATION.)
23	INSPECT FOR SHORT TO GROUND BETWEEN FORWARD SENSING CAMERA (FSC) AND CONNECTORS C-51 AND C-52 •  Inspect for continuity at the following terminals: ―  Between forward sensing camera (FSC) terminal E and body ground ―  Between forward sensing camera (FSC) terminal C and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the connector C-11 and connectors C-51 and C-52 because the wiring harness is shorted to ground.
24	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS C-51 AND C-52 AND CONNECTOR C-23 •  Disconnect the connector C-23. •  Inspect for continuity at the following terminals: ―  Between forward sensing camera (FSC) terminal E and body ground ―  Between forward sensing camera (FSC) terminal C and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the connectors C-51 and C-52 and connector C-23 because the wiring harness is shorted to ground.
25	INSPECT CAN LINE IN FORWARD SENSING CAMERA (FSC) FOR SHORT TO GROUND •  Disconnect the forward sensing camera (FSC) connector. •  Inspect for continuity at the following terminals: ―  Between forward sensing camera (FSC) terminal E (wiring harness side) and body ground ―  Between forward sensing camera (FSC) terminal C (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the forward sensing camera (FSC) and connector C-23 because the wiring harness is shorted to ground.
		No	Replace the forward sensing camera (FSC) because there is a short to ground in the forward sensing camera (FSC). (See FORWARD SENSING CAMERA (FSC) REMOVAL/INSTALLATION.)
26	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-36 AND INSTRUMENT CLUSTER •  Disconnect the connector C-36. •  Inspect for continuity at the following terminals: ―  Between DLC-2 terminal F and body ground ―  Between DLC-2 terminal E and body ground •  Is there continuity?	Yes	Go to Step 33.
		No	Go to the next step.
27	INSPECT FOR SHORT TO GROUND BETWEEN SAS CONTROL MODULE AND CONNECTOR C-36 •  Inspect for continuity at the following terminals: ―  Between SAS control module terminal 3Q and body ground ―  Between SAS control module terminal 3S and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 29.
28	INSPECT CAN LINE IN SAS CONTROL MODULE FOR SHORT TO GROUND •  Disconnect the SAS control module connector. •  Inspect for continuity at the following terminals: ―  Between SAS control module terminal 3Q (wiring harness side) and body ground ―  Between SAS control module terminal 3S (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the SAS control module and connector C-36 because the wiring harness is shorted to ground.
		No	Replace the SAS control module because there is a short to ground in the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].) (See SAS CONTROL MODULE REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM].)
29	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTIVITY MASTER UNIT (CMU) AND CONNECTOR C-36 •  Inspect for continuity at the following terminals: ―  Between connectivity master unit (CMU) terminal 2E and body ground ―  Between connectivity master unit (CMU) terminal 2F and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 31.
30	INSPECT CAN LINE IN CONNECTIVITY MASTER UNIT (CMU) FOR SHORT TO GROUND •  Disconnect the connectivity master unit (CMU) connector. •  Inspect for continuity at the following terminals: ―  Between connectivity master unit (CMU) terminal 2E (wiring harness side) and body ground ―  Between connectivity master unit (CMU) terminal 2F (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connectivity master unit (CMU) and connector C-36 because the wiring harness is shorted to ground.
		No	Replace the connectivity master unit (CMU) because there is a short to ground in the connectivity master unit (CMU). (See CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION.)
31	INSPECT FOR SHORT TO GROUND BETWEEN EPS CONTROL MODULE AND CONNECTOR C-36 •  Inspect for continuity at the following terminals: ―  Between EPS control module terminal 1G and body ground ―  Between EPS control module terminal 1H and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the connector C-11 and connector C-36 because the wiring harness is shorted to ground.
32	INSPECT CAN LINE IN EPS CONTROL MODULE FOR SHORT TO GROUND •  Disconnect the EPS control module connector. •  Inspect for continuity at the following terminals: ―  Between EPS control module terminal 1G (wiring harness side) and body ground ―  Between EPS control module terminal 1H (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the EPS control module and connector C-36 because the wiring harness is shorted to ground.
		No	Replace the EPS control module because there is a short to ground in the EPS control module. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
33	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-37 AND DLC-2 •  Disconnect the connector C-37. •  Inspect for continuity at the following terminals: ―  Between DLC-2 terminal F and body ground ―  Between DLC-2 terminal E and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-37 and DLC-2 because the wiring harness is shorted to ground.
		No	Go to the next step.
34	INSPECT FOR SHORT TO GROUND BETWEEN START STOP UNIT AND CONNECTOR C-37 •  Inspect for continuity at the following terminals: ―  Between start stop unit terminal 2M and body ground ―  Between start stop unit terminal 2O and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 36.
35	INSPECT CAN LINE IN START STOP UNIT FOR SHORT TO GROUND •  Disconnect the start stop unit connector. •  Inspect for continuity at the following terminals: ―  Between start stop unit terminal 2M (wiring harness side) and body ground ―  Between start stop unit terminal 2O (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the start stop unit and connector C-37 because the wiring harness is shorted to ground.
		No	Replace the start stop unit because there is a short to ground in the start stop unit. (See START STOP UNIT REMOVAL/INSTALLATION.)
36	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-37 AND INSTRUMENT CLUSTER •  Inspect for continuity at the following terminals: ―  Between instrument cluster terminal 1B and body ground ―  Between instrument cluster terminal 1D and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the connector C-36 and connector C-37 because the wiring harness is shorted to ground.
37	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 1B (wiring harness side) and body ground ―  Between instrument cluster terminal 1D (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the instrument cluster and connector C-37 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.)