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

id100225000700

Caution

•  Perform the following malfunction diagnosis only when it is diagnosed with a short to power supply 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.

•  Disconnect the negative battery cable 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 CAN LINE BETWEEN BCM AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY •  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. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Go to the next step.
		No	Go to Step 9.
2	INSPECT CAN LINE BETWEEN PCM AND BCM FOR SHORT TO POWER SUPPLY •  Measure the voltage at PCM terminals 2AK and 2AL. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the BCM because there is a short to the power supply in the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
		No	Go to the next step.
3	INSPECT CAN LINE BETWEEN CONNECTORS C-38 AND C-39 AND BCM FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Connect the connector 2 and 3 which has BCM terminals 3C,3D and 2D,2C. •  Disconnect the connectors C-38 and C-39. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the BCM and connectors C-38 and C-39 because the wiring harness is shorted to the power supply.
4	INSPECT DSC HU/CM FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the DSC HU/CM connector. •  Connect the connectors C-38 and C-39. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the DSC HU/CM because there is a short to the power supply in the DSC HU/CM. (See DSC HU/CM REMOVAL/INSTALLATION [L.H.D.].)
		No	Go to the next step.
5	INSPECT EVP CONTROL UNIT FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the EVP control unit connector. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the EVP control unit because there is a short to the power supply in the EVP control unit. (See EVP CONTROL UNIT REMOVAL/INSTALLATION [L.H.D.].)
		No	Go to the next step.
6	INSPECT DC-DC CONVERTER (i-ELOOP) FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the DC-DC converter (i-ELOOP) connector. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the DC-DC converter (i-ELOOP) because there is a short to the power supply in the DC-DC converter (i-ELOOP). (See DC-DC CONVERTER (i-ELOOP) REMOVAL/INSTALLATION [i-ELOOP].)
		No	Go to the next step.
7	INSPECT EPS CONTROL MODULE FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the EPS control module connector. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the EPS control module because there is a short to the power supply in the EPS control module. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
		No	Go to the next step.
8	INSPECT PCM FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the PCM connector. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the PCM because there is a short to the power supply in the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0].)
		No	Repair or replace the wiring harness between the PCM and connectors C-38 and C-39 because the wiring harness is shorted to the power supply.
9	INSPECT CAN LINE BETWEEN CONNECTOR C-42 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the connector C-42. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Go to the next step.
		No	Go to Step 15.
10	INSPECT CAN LINE BETWEEN AUDIO AMPLIFIER AND CONNECTOR C-42 FOR SHORT TO POWER SUPPLY •  Measure the voltage at audio amplifier terminals 2L and 2N. •  Is the voltage between 1.5—3.5 V?	Yes	Go to Step 12.
		No	Go to the next step.
11	INSPECT AUDIO AMPLIFIER FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the audio amplifier connector. •  Connect the connector C-42. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the audio amplifier because there is a short to the power supply in the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION.)
		No	Repair or replace the wiring harness between the audio amplifier and connector C-42 because the wiring harness is shorted to the power supply.
12	INSPECT CAN LINE BETWEEN RETRACTABLE HARDTOP CONTROL MODULE AND CONNECTOR C-42 FOR SHORT TO POWER SUPPLY •  Measure the voltage at retractable hardtop control module terminals 4AE and 4AF. •  Is the voltage between 1.5—3.5 V?	Yes	Go to Step 14.
		No	Go to the next step.
13	INSPECT RETRACTABLE HARDTOP CONTROL MODULE FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the retractable hardtop control module connector. •  Connect the connector C-42. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the retractable hardtop control module because there is a short to the power supply in the retractable hardtop control module. (See RETRACTABLE HARDTOP CONTROL MODULE REMOVAL/INSTALLATION.)
		No	Repair or replace the wiring harness between the retractable hardtop control module and connector C-42 because the wiring harness is shorted to the power supply.
14	INSPECT TCM FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the TCM connector. •  Connect the connector C-42. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the TCM because there is a short to the power supply in the TCM. (See CONTROL VALVE BODY REMOVAL [SJ6A-EL].) (See CONTROL VALVE BODY INSTALLATION [SJ6A-EL].)
		No	Repair or replace the wiring harness between the TCM and connector C-42 and BCM because the wiring harness is shorted to the power supply.
15	INSPECT CAN LINE BETWEEN CONNECTOR C-25 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the connector C-25. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Go to the next step.
		No	Go to Step 18.
16	INSPECT CAN LINE BETWEEN CONNECTOR C-30 AND CONNECTOR C-42 AND CONNECTOR C-25 FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the connector C-30. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at occupant classification sensor terminals 4B and 4A. •  Is the voltage between 1.5—3.5 V?	Yes	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 the power supply.
		No	Go to the next step.
17	INSPECT OCCUPANT CLASSIFICATION SENSOR FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the occupant classification sensor connector. •  Connect the connector C-30. •  Connect the connector C-25. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the occupant classification sensor because there is a short to the power supply in the occupant classification sensor. (See OCCUPANT CLASSIFICATION SENSOR REMOVAL/INSTALLATION.)
		No	Repair or replace the wiring harness between the occupant classification sensor and connector C-30 because the wiring harness is shorted to the power supply.
18	INSPECT CAN LINE BETWEEN CONNECTOR C-14 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the connector C-14. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Repair or replace the wiring harness between the connector C-25 and connector C-14 because the wiring harness is shorted to the power supply.
		No	Go to the next step.
19	INSPECT CAN LINE BETWEEN CONNECTOR C-17 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the connector C-17. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Go to the next step.
		No	Go to Step 22.
20	INSPECT CAN LINE BETWEEN FORWARD SENSING CAMERA (FSC) AND CONNECTOR C-17 FOR SHORT TO POWER SUPPLY •  Measure the voltage at forward sensing camera (FSC) terminals E and C. •  Is the voltage between 1.5—3.5 V?	Yes	Repair or replace the wiring harness between the connector C-14 and connector C-17 because the wiring harness is shorted to the power supply.
		No	Go to the next step.
21	INSPECT FORWARD SENSING CAMERA (FSC) FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the forward sensing camera (FSC) connector. •  Connect the connector C-17. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the forward sensing camera (FSC) because there is a short to the power supply in the forward sensing camera (FSC). (See FORWARD SENSING CAMERA (FSC) REMOVAL/INSTALLATION.)
		No	Repair or replace the wiring harness between the forward sensing camera (FSC) and connector C-17 because the wiring harness is shorted to the power supply.
22	INSPECT CAN LINE BETWEEN CONNECTOR C-41 AND DLC-2 FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the connector C-41. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage 0 V?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between connector C-41 and DLC-2 because the wiring harness is shorted to the power supply.
23	INSPECT CAN LINE BETWEEN AFS CONTROL MODULE / AUTO LEVELING CONTROL MODULE / ADAPTIVE LED HEADLIGHTS CONTROL MODULE AND CONNECTOR C-41 FOR SHORT TO POWER SUPPLY •  Measure the voltage at AFS control module / auto leveling control module / adaptive LED headlights control module terminals A and B. •  Is the voltage between 1.5—3.5 V?	Yes	Go to Step 25.
		No	Go to the next step.
24	INSPECT AFS CONTROL MODULE / AUTO LEVELING CONTROL MODULE / ADAPTIVE LED HEADLIGHTS CONTROL MODULE FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the AFS control module / auto leveling control module / adaptive LED headlights control module connector. •  Connect the connector C-41. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the AFS control module / auto leveling control module / adaptive LED headlights control module because there is a short to the power supply 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.)
		No	Repair or replace the wiring harness between the AFS control module / auto leveling control module / adaptive LED headlights control module and connector C-41 because the wiring harness is shorted to the power supply.
25	INSPECT CAN LINE BETWEEN START STOP UNIT AND CONNECTOR C-41 FOR SHORT TO POWER SUPPLY •  Measure the voltage at start stop unit terminals 2M and 2O. •  Is the voltage between 1.5—3.5 V?	Yes	Go to Step 28.
		No	Go to the next step.
26	INSPECT CAN LINE BETWEEN START STOP UNIT AND CONNECTOR C-19 FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the connector C-19. •  Connect the connector C-41. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the connector C-41 and connector C-19 because the wiring harness is shorted to the power supply.
27	INSPECT START STOP UNIT FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the start stop unit connector. •  Connect the connector C-19. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the start stop unit because there is a short to the power supply in the start stop unit. (See START STOP UNIT REMOVAL/INSTALLATION.)
		No	Repair or replace the wiring harness between the start stop unit and connector C-19 because the wiring harness is shorted to the power supply.
28	INSPECT CAN LINE BETWEEN CONNECTIVITY MASTER UNIT (CMU) AND CONNECTOR C-41 FOR SHORT TO POWER SUPPLY •  Measure the voltage at connectivity master unit (CMU) terminals 2E and 2F. •  Is the voltage between 1.5—3.5 V?	Yes	Go to Step 30.
		No	Go to the next step.
29	INSPECT CONNECTIVITY MASTER UNIT (CMU) FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the connectivity master unit (CMU) connector. •  Connect the connector C-41. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the connectivity master unit (CMU) because there is a short to the power supply in the connectivity master unit (CMU). (See CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION.)
		No	Repair or replace the wiring harness between the connectivity master unit (CMU) and connector C-41 because the wiring harness is shorted to the power supply.
30	INSPECT CAN LINE BETWEEN INSTRUMENT CLUSTER AND CONNECTOR C-41 FOR SHORT TO POWER SUPPLY •  Measure the voltage at instrument cluster terminals B and D. •  Is the voltage between 1.5—3.5 V?	Yes	Go to Step 32.
		No	Go to the next step.
31	INSPECT INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the instrument cluster connector. •  Connect the connector C-41. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the instrument cluster because there is a short to the power supply in the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
		No	Repair or replace the wiring harness between the instrument cluster and connector C-41 because the wiring harness is shorted to the power supply.
32	INSPECT SAS CONTROL MODULE FOR SHORT TO POWER SUPPLY •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Disconnect the SAS control module connector. •  Connect the connector C-41. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals F and E. •  Is the voltage between 1.5—3.5 V?	Yes	Replace the SAS control module connector because there is a short to the power supply in the SAS control module connector. (See SAS CONTROL MODULE REMOVAL/INSTALLATION.)
		No	Repair or replace the wiring harness between the SAS control module and connector C-41 because the wiring harness is shorted to the power supply.