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

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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 [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 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 9.
		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-38 AND C-39 AND BCM •  Connect the connector 2 and 3 which has BCM terminals 3C,3D and 2D,2C. •  Disconnect the connectors C-38 and C-39. •  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-38 and C-39 and BCM because the wiring harness is shorted to ground.
		No	Go to the next step.
4	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 C (wiring harness side) and body ground ―  Between DSC HU/CM terminal D (wiring harness side) and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Replace the DSC HU/CM because there is a short to ground in the DSC HU/CM. (See DSC HU/CM REMOVAL/INSTALLATION [L.H.D.].)
5	INSPECT CAN LINE IN EVP CONTROL UNIT FOR SHORT TO GROUND •  Disconnect the EVP control unit connector. •  Inspect for continuity at the following terminals: ―  Between EVP control unit terminal AD (wiring harness side) and body ground ―  Between EVP control unit terminal Z (wiring harness side) and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Replace the EVP control unit because there is a short to ground in the EVP control unit. (See EVP CONTROL UNIT REMOVAL/INSTALLATION [L.H.D.].)
6	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	Go to the next step.
		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 [i-ELOOP].)
7	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 2B (wiring harness side) and body ground ―  Between EPS control module terminal 2C (wiring harness side) and body ground •  Is there continuity?	Yes	Go to the next step.
		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.)
8	INSPECT CAN LINE IN PCM FOR SHORT TO GROUND •  Disconnect the PCM connector. •  Inspect for continuity at the following terminals: ―  Between PCM terminal 2AK (wiring harness side) and body ground ―  Between PCM terminal 2AL (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the PCM and connectors C-38 and C-39 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-G 1.5, SKYACTIV-G 2.0].)
9	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-42 AND INSTRUMENT CLUSTER •  Disconnect the connector C-42. •  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 15.
		No	Go to the next step.
10	INSPECT FOR SHORT TO GROUND BETWEEN AUDIO AMPLIFIER AND CONNECTOR C-42 •  Inspect for continuity at the following terminals: ―  Between audio amplifier terminal 2L and body ground ―  Between audio amplifier terminal 2N and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 12.
11	INSPECT CAN LINE IN AUDIO AMPLIFIER FOR SHORT TO GROUND •  Disconnect the audio amplifier connector. •  Inspect for continuity at the following terminals: ―  Between audio amplifier terminal 2L (wiring harness side) and body ground ―  Between audio amplifier terminal 2N (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the audio amplifier and connector C-42 because the wiring harness is shorted to ground.
		No	Replace the audio amplifier because there is a short to ground in the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION.)
12	INSPECT FOR SHORT TO GROUND BETWEEN RETRACTABLE HARDTOP CONTROL MODULE AND CONNECTOR C-42 •  Inspect for continuity at the following terminals: ―  Between retractable hardtop control module terminal 4AE and body ground ―  Between retractable hardtop control module terminal 4AF and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 14.
13	INSPECT CAN LINE IN RETRACTABLE HARDTOP CONTROL MODULE FOR SHORT TO GROUND •  Disconnect the retractable hardtop control module connector. •  Inspect for continuity at the following terminals: ―  Between retractable hardtop control module terminal 4AE (wiring harness side) and body ground ―  Between retractable hardtop control module terminal 4AF (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the retractable hardtop control module and connector C-42 because the wiring harness is shorted to ground.
		No	Replace the retractable hardtop control module because there is a short to ground in the retractable hardtop control module. (See RETRACTABLE HARDTOP CONTROL MODULE REMOVAL/INSTALLATION.)
14	INSPECT CAN LINE IN TCM FOR SHORT TO GROUND •  Disconnect the TCM connector. •  Inspect for continuity at the following terminals: ―  Between TCM terminal 2G (wiring harness side) and body ground ―  Between TCM terminal 2C (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the TCM and connector C-42 and BCM 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 [SJ6A-EL].) (See CONTROL VALVE BODY INSTALLATION [SJ6A-EL].)
15	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-25 AND INSTRUMENT CLUSTER •  Disconnect the connector C-25. •  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 18.
		No	Go to the next step.
16	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-30 AND CONNECTOR C-42 AND CONNECTOR C-25 •  Disconnect the connector C-30. •  Inspect for continuity at the following terminals: ―  Between occupant classification sensor terminal 4B and body ground ―  Between occupant classification sensor terminal 4A and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the connector C-30 and connector C-42 and connector C-25 because the wiring harness is shorted to ground.
17	INSPECT CAN LINE IN OCCUPANT CLASSIFICATION SENSOR FOR SHORT TO GROUND •  Disconnect the occupant classification sensor connector. •  Inspect for continuity at the following terminals: ―  Between occupant classification sensor terminal 4B (wiring harness side) and body ground ―  Between occupant classification sensor terminal 4A (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the occupant classification sensor and connector C-30 because the wiring harness is shorted to ground.
		No	Replace the occupant classification sensor because there is a short to ground in the occupant classification sensor. (See OCCUPANT CLASSIFICATION SENSOR REMOVAL/INSTALLATION.)
18	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-14 AND INSTRUMENT CLUSTER •  Disconnect the connector C-14. •  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-25 and connector C-14 because the wiring harness is shorted to ground.
19	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-17 AND INSTRUMENT CLUSTER •  Disconnect the connector C-17. •  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 22.
		No	Go to the next step.
20	INSPECT FOR SHORT TO GROUND BETWEEN FORWARD SENSING CAMERA (FSC) AND CONNECTOR C-17 •  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-14 and connector C-17 because the wiring harness is shorted to ground.
21	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-17 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.)
22	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-41 AND DLC-2 •  Disconnect the connector C-41. •  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-41 and DLC-2 because the wiring harness is shorted to ground.
		No	Go to the next step.
23	INSPECT FOR SHORT TO GROUND BETWEEN AFS CONTROL MODULE / AUTO LEVELING CONTROL MODULE / ADAPTIVE LED HEADLIGHTS CONTROL MODULE AND CONNECTOR C-17 AND CONNECTOR C-41 •  Inspect for continuity at the following terminals: ―  Between AFS control module / auto leveling control module / adaptive LED headlights control module terminal A and body ground ―  Between AFS control module / auto leveling control module / adaptive LED headlights control module terminal B and body ground •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 25.
24	INSPECT CAN LINE IN AFS CONTROL MODULE / AUTO LEVELING CONTROL MODULE / ADAPTIVE LED HEADLIGHTS CONTROL MODULE FOR SHORT TO GROUND •  Disconnect the AFS control module / auto leveling control module / adaptive LED headlights control module connector. •  Inspect for continuity at the following terminals: ―  Between AFS control module / auto leveling control module / adaptive LED headlights control module terminal A (wiring harness side) and body ground ―  Between AFS control module / auto leveling control module / adaptive LED headlights control module terminal B (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the AFS control module / auto leveling control module / adaptive LED headlights control module and connector C-17 and connector C-41 because the wiring harness is shorted to ground.
		No	Replace the AFS control module / auto leveling control module / adaptive LED headlights control module because there is a short to ground in the AFS control module / auto leveling control module / adaptive LED headlights control module. (See ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE REMOVAL/INSTALLATION.) (See AUTO LEVELING CONTROL MODULE REMOVAL/INSTALLATION.) (See ADAPTIVE LED HEADLIGHTS CONTROL MODULE REMOVAL/INSTALLATION.)
25	INSPECT FOR SHORT TO GROUND BETWEEN START STOP UNIT AND CONNECTOR C-41 •  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 28.
26	INSPECT FOR SHORT TO GROUND BETWEEN START STOP UNIT AND CONNECTOR C-19 •  Disconnect the connector C-19. •  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	Repair or replace the wiring harness between the connector C-19 and connector C-41 because the wiring harness is shorted to ground.
27	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-19 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.)
28	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTIVITY MASTER UNIT (CMU) AND CONNECTOR C-41 •  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 30.
29	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-41 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.)
30	INSPECT FOR SHORT TO GROUND BETWEEN SAS CONTROL MODULE AND CONNECTOR C-41 •  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 32.
31	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-41 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.)
32	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 B (wiring harness side) and body ground ―  Between instrument cluster terminal D (wiring harness side) and body ground •  Is there continuity?	Yes	Repair or replace the wiring harness between the instrument cluster and connector C-41 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.)