DETERMINING SHORT BETWEEN CIRCUITS LOCATION (HS-CAN) [R.H.D.]

id100226000800

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 [R.H.D.].)

System Wiring Diagram

amxzzw00005663

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.

•  Disconnect the negative battery terminal before performing any work that requires handling of connectors.

Note

•  If the ignition does not turn on even if the ignition is switched ON, switch the ignition ON referring to the forced ignition ON procedure. (See FORCED IGNITION ON.)

Step	Inspection		Action
1	INSPECT BETWEEN BCM AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Disconnect the connector 2 and 3 which has BCM terminals 3C,3D and 2D,2C. •  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage at DLC-2 terminals F and E the same?	Yes	Go to Step 10.
		No	Go to the next step.
2	INSPECT BCM FOR SHORT BETWEEN CIRCUITS •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Inspect for continuity between BCM terminals 3C and 3D. •  Is there continuity?	Yes	Replace the BCM because there is a short between circuits in the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
		No	Go to the next step.
3	INSPECT BETWEEN CONNECTORS C-38 AND C-39 AND BCM FOR SHORT BETWEEN CIRCUITS •  Disconnect the connectors C-38 and C-39. •  Inspect for continuity between BCM terminals 3C and 3D (wiring harness side). •  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 between circuits.
		No	Go to the next step.
4	INSPECT BETWEEN CONNECTORS C-38 AND C-39 AND DSC HU/CM FOR SHORT BETWEEN CIRCUITS •  Inspect for continuity between DSC HU/CM terminals C and D. •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 6.
5	INSPECT DSC HU/CM FOR SHORT BETWEEN CIRCUITS •  Disconnect the DSC HU/CM connector. •  Inspect for continuity between DSC HU/CM terminals C and D (wiring harness side). •  Is there continuity?	Yes	Repair or replace the wiring harness between the connectors C-38 and C-39 and DSC HU/CM because the wiring harness is shorted between circuits.
		No	Replace the DSC HU/CM because there is a short between circuits in the DSC HU/CM. (See DSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)
6	INSPECT PCM FOR SHORT BETWEEN CIRCUITS •  Disconnect the PCM connector. •  Inspect for continuity between PCM terminals 2S and 2T (wiring harness side). •  Is there continuity?	Yes	Go to the next step.
		No	Replace the PCM because there is a short between circuits in the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0].)
7	INSPECT DC-DC CONVERTER (i-ELOOP) FOR SHORT BETWEEN CIRCUITS •  Disconnect the DC-DC converter (i-ELOOP) connector. •  Inspect for continuity between DC-DC converter (i-ELOOP) terminals 1M and 1N (wiring harness side). •  Is there continuity?	Yes	Go to the next step.
		No	Replace the DC-DC converter (i-ELOOP) because there is a short between circuits in the DC-DC converter (i-ELOOP). (See DC-DC CONVERTER (i-ELOOP) REMOVAL/INSTALLATION [i-ELOOP].)
8	INSPECT EVP CONTROL UNIT FOR SHORT BETWEEN CIRCUITS •  Disconnect the EVP control unit connector. •  Inspect for continuity between EVP control unit terminals AD and Z (wiring harness side). •  Is there continuity?	Yes	Go to the next step.
		No	Replace the EVP control unit because there is a short between circuits in the EVP control unit. (See EVP CONTROL UNIT REMOVAL/INSTALLATION [R.H.D.].)
9	INSPECT EPS CONTROL MODULE FOR SHORT BETWEEN CIRCUITS •  Disconnect the EPS control module connector. •  Inspect for continuity between EPS control module terminals 2B and 2C (wiring harness side). •  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 between circuits.
		No	Replace the EPS control module because there is a short between circuits in the EPS control module. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
10	INSPECT BETWEEN CONNECTOR C-42 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Disconnect the connector C-42. •  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage at DLC-2 terminals F and E the same?	Yes	Go to Step 16.
		No	Go to the next step.
11	INSPECT BETWEEN AUDIO AMPLIFIER AND CONNECTOR C-42 FOR SHORT BETWEEN CIRCUITS •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Inspect for continuity between audio amplifier terminal terminals 2L and 2N. •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 13.
12	INSPECT AUDIO AMPLIFIER FOR SHORT BETWEEN CIRCUITS •  Disconnect the audio amplifier connector. •  Inspect for continuity between audio amplifier terminals 2L and 2N (wiring harness side). •  Is there continuity?	Yes	Repair or replace the wiring harness between the audio amplifier and connector C-42 because the wiring harness is shorted between circuits.
		No	Replace the audio amplifier because there is a short between circuits in the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION.)
13	INSPECT BETWEEN RETRACTABLE HARDTOP CONTROL MODULE AND CONNECTOR C-42 FOR SHORT BETWEEN CIRCUITS •  Inspect for continuity between retractable hardtop control module terminal terminals 4AE and 4AF. •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 15.
14	INSPECT RETRACTABLE HARDTOP CONTROL MODULE FOR SHORT BETWEEN CIRCUITS •  Disconnect the retractable hardtop control module connector. •  Inspect for continuity between retractable hardtop control module terminals 4AE and 4AF (wiring harness side). •  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 between circuits.
		No	Replace the retractable hardtop control module because there is a short between circuits in the retractable hardtop control module. (See RETRACTABLE HARDTOP CONTROL MODULE REMOVAL/INSTALLATION.)
15	INSPECT TCM FOR SHORT BETWEEN CIRCUITS •  Disconnect the TCM connector. •  Inspect for continuity between TCM terminals 2G and 2C (wiring harness side). •  Is there continuity?	Yes	Repair or replace the wiring harness between the TCM and BCM and connector C-42 because the wiring harness is shorted between circuits.
		No	Replace the TCM because there is a short between circuits in the TCM. (See CONTROL VALVE BODY REMOVAL [SJ6A-EL].) (See CONTROL VALVE BODY INSTALLATION [SJ6A-EL].)
16	INSPECT BETWEEN CONNECTOR C-14 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Disconnect the connector C-14. •  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage at DLC-2 terminals F and E the same?	Yes	Go to Step 19.
		No	Go to the next step.
17	INSPECT BETWEEN CONNECTOR C-42 AND CONNECTOR C-30 AND CONNECTOR C-14 FOR SHORT BETWEEN CIRCUITS •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Disconnect the connector C-30. •  Inspect for continuity between occupant classification sensor terminals 4B and 4A. •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the connector C-42 and connector C-30 and connector C-14 because the wiring harness is shorted between circuits.
18	INSPECT OCCUPANT CLASSIFICATION SENSOR FOR SHORT BETWEEN CIRCUITS •  Disconnect the occupant classification sensor connector. •  Inspect for continuity between occupant classification sensor terminals 4B and 4A (wiring harness side). •  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 between circuits.
		No	Replace the occupant classification sensor because there is a short between circuits in the occupant classification sensor. (See OCCUPANT CLASSIFICATION SENSOR REMOVAL/INSTALLATION.)
19	INSPECT BETWEEN CONNECTOR C-17 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Disconnect the connector C-17. •  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage at DLC-2 terminals F and E the same?	Yes	Go to Step 22.
		No	Go to the next step.
20	INSPECT BETWEEN FORWARD SENSING CAMERA (FSC) AND CONNECTOR C-17 FOR SHORT BETWEEN CIRCUITS •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Inspect for continuity between forward sensing camera (FSC) terminal terminals M and N. •  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 between circuits.
21	INSPECT FORWARD SENSING CAMERA (FSC) FOR SHORT BETWEEN CIRCUITS •  Disconnect the forward sensing camera (FSC) connector. •  Inspect for continuity between forward sensing camera (FSC) terminals M and N (wiring harness side). •  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 between circuits.
		No	Replace the forward sensing camera (FSC) because there is a short between circuits in the forward sensing camera (FSC). (See FORWARD SENSING CAMERA (FSC) REMOVAL/INSTALLATION.)
22	INSPECT BETWEEN CONNECTOR C-40 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Disconnect the connector C-40. •  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage at DLC-2 terminals F and E the same?	Yes	Go to Step 27.
		No	Go to the next step.
23	INSPECT BETWEEN CONNECTIVITY MASTER UNIT (CMU) AND CONNECTO C-40 FOR SHORT BETWEEN CIRCUITS •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Inspect for continuity between connectivity master unit (CMU) terminals 2E and 2F. •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 25.
24	INSPECT CONNECTIVITY MASTER UNIT (CMU) FOR SHORT BETWEEN CIRCUITS •  Disconnect the connectivity master unit (CMU) connector. •  Inspect for continuity between connectivity master unit (CMU) terminals 2E and 2F (wiring harness side). •  Is there continuity?	Yes	Repair or replace the wiring harness between the connectivity master unit (CMU) and connector C-40 because the wiring harness is shorted between circuits.
		No	Replace the connectivity master unit (CMU) because there is a short between circuits in the connectivity master unit (CMU). (See CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION.)
25	INSPECT BETWEEN AFS CONTROL MODULE / AUTO LEVELING CONTROL MODULE / ADAPTIVE LED HEADLIGHTS CONTROL MODULE AND CONNECTOR C-40 FOR SHORT BETWEEN CIRCUITS •  Inspect for continuity between AFS control module / auto leveling control module / adaptive LED headlights control module terminals A and B. •  Is there continuity?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the connector C-17 and connector C-40 because the wiring harness is shorted between circuits.
26	INSPECT AFS CONTROL MODULE / AUTO LEVELING CONTROL MODULE / ADAPTIVE LED HEADLIGHTS CONTROL MODULE FOR SHORT BETWEEN CIRCUITS •  Disconnect the AFS control module / auto leveling control module / adaptive LED headlights control module connector. •  Inspect for continuity between AFS control module / auto leveling control module / adaptive LED headlights control module terminals A and B (wiring harness side). •  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-40 because the wiring harness is shorted between circuits.
		No	Replace the AFS control module / auto leveling control module / adaptive LED headlights control module because there is a short between circuits 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.)
27	INSPECT BETWEEN CONNECTOR C-41 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Disconnect the connector C-41. •  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage at DLC-2 terminals F and E the same?	Yes	Go to Step 32.
		No	Go to the next step.
28	INSPECT BETWEEN START STOP UNIT AND CONNECTOR C-41 FOR SHORT BETWEEN CIRCUITS •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Inspect for continuity between start stop unit terminals 2M and 2O. •  Is there continuity?	Yes	Go to the next step.
		No	Go to Step 31.
29	INSPECT BETWEEN START STOP UNIT AND CONNECTOR C-19 FOR SHORT BETWEEN CIRCUITS •  Disconnect the connector C-19. •  Inspect for continuity between start stop unit terminals 2M and 2O. •  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 between circuits.
30	INSPECT START STOP UNIT FOR SHORT BETWEEN CIRCUITS •  Disconnect the start stop unit connector. •  Inspect for continuity between start stop unit terminals 2M and 2O (wiring harness side). •  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 between circuits.
		No	Replace the start stop unit because there is a short between circuits in the start stop unit. (See START STOP UNIT REMOVAL/INSTALLATION.)
31	INSPECT SAS CONTORL MODULE FOR SHORT BETWEEN CIRCUITS •  Disconnect the SAS control module connector. •  Inspect for continuity between SAS control module terminals 3Q and 3S (wiring harness side). •  Is there continuity?	Yes	Repair or replace the wiring harness between the SAS control module and connector C-40 and connector C-41 because the wiring harness is shorted between circuits.
		No	Replace the SAS control module because there is a short between circuits in the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION.)
32	INSPECT INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS •  Switch the ignition off. •  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Disconnect the instrument cluster connector. •  Inspect for continuity between DLC-2 terminals F and E. •  Is there continuity?	Yes	Repair or replace the wiring harness between connector C-41 and instrument cluster and DLC-2 because the wiring harness is shorted between circuits.
		No	Replace the instrument cluster because there is a short between circuits in the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)