DETERMINING SHORT TO POWER SUPPLY LOCATION (HS-CAN) [SKYACTIV-D 1.5 (L.H.D.)]


id100223000700

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 [SKYACTIV-D 1.5 (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.
•  Disconnect the connector 2 and 3 which has BCM terminals 3C,3D and 2D,2C.
•  Connect the negative battery cable.
•  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 16.
2
INSPECT CAN LINE BETWEEN PCM AND BCM FOR SHORT TO POWER SUPPLY
•  Measure the voltage at PCM terminals 2C and 2D.
•  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.
No
Go to the next step.
3
INSPECT CAN LINE BETWEEN CONNECTORS C-28 AND C-29 AND BCM FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Connect the connector 2 and 3 which has BCM terminals 3C,3D and 2D,2C.
•  Disconnect the connectors C-28 and C-29.
•  Connect the negative battery cable.
•  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-28 and C-29 because the wiring harness is shorted to the power supply.
4
INSPECT CAN LINE BETWEEN ADAPTIVE LED HEADLIGHTS CONTROL MODULE / AUTO LEVELING CONTROL MODULE AND CONNECTORS C-28 AND C-29 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at adaptive LED headlights control module / auto leveling control module terminals T and V.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to Step 6.
No
Go to the next step.
5
INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE / AUTO LEVELING CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Connect the connectors C-28 and C-29.
•  Disconnect the adaptive LED headlights control module / auto leveling control module connector.
•  Connect the negative battery cable.
•  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 adaptive LED headlights control module / auto leveling control module because there is a short to the power supply in the adaptive LED headlights control module / auto leveling control module.
No
Repair or replace the wiring harness between the adaptive LED headlights control module / auto leveling control module and connectors C-28 and C-29 because the wiring harness is shorted to the power supply.
6
INSPECT CAN LINE BETWEEN CONNECTOR C-01 AND CONNECTORS C-28 AND C-29 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the connector C-01.
•  Connect the connectors C-28 and C-29.
•  Connect the negative battery cable.
•  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-01 and connectors C-28 and C-29 because the wiring harness is shorted to the power supply.
7
INSPECT CAN LINE BETWEEN TCM AND CONNECTOR C-01 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at TCM terminals E and F.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Go to Step 9.
No
Go to the next step.
8
INSPECT TCM FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the TCM connector.
•  Connect connector C-01.
•  Connect the negative battery cable.
•  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.
No
Repair or replace the wiring harness between the TCM and connector C-01 because the wiring harness is shorted to the power supply.
9
INSPECT CAN LINE BETWEEN CONNECTORS C-63 AND C-64 AND CONNECTOR C-01 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the connectors C-63 and C-64.
•  Connect the connector C-01.
•  Connect the negative battery cable.
•  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 connectors C-63 and C-64 and connector C-01 because the wiring harness is shorted to the power supply.
10
INSPECT CAN LINE BETWEEN RADAR UNIT AND CONNECTORS C-63 AND C-64 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at radar unit terminals D and C.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to Step 12.
No
Go to the next step.
11
INSPECT RADAR UNIT FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Connect the connectors C-63 and C-64.
•  Disconnect the radar unit connector.
•  Connect the negative battery cable.
•  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 radar unit because there is a short to the power supply in the radar unit.
No
Repair or replace the wiring harness between the radar unit and connectors C-63 and C-64 because the wiring harness is shorted to the power supply.
12
INSPECT CAN LINE BETWEEN CONNECTOR C-30 AND CONNECTORS C-63 AND C-64 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the connector C-30.
•  Connect the connectors C-63 and C-64.
•  Connect the negative battery cable.
•  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-30 and connectors C-63 and C-64 because the wiring harness is shorted to the power supply.
13
INSPECT CAN LINE BETWEEN DSC HU/CM AND CONNECTOR C-30 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at DSC HU/CM terminals AF and AC.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to Step 15.
No
Go to the next step.
14
INSPECT DSC HU/CM FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the DSC HU/CM connector.
•  Connect the connector C-30.
•  Connect the negative battery cable.
•  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.
No
Repair or replace the wiring harness between the DSC HU/CM and connector C-30 because the wiring harness is shorted to the power supply.
15
INSPECT PCM FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the PCM connector.
•  Connect the connector C-30.
•  Connect the negative battery cable.
•  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.
No
Repair or replace the wiring harness between the PCM and connector C-30 because the wiring harness is shorted to the power supply.
16
INSPECT CAN LINE BETWEEN CONNECTOR C-07 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the connector C-07.
•  Connect the negative battery cable.
•  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 BCM and connector C-07 because the wiring harness is shorted to the power supply.
No
Go to the next step.
17
INSPECT CAN LINE BETWEEN CONNECTOR C-07 AND CONNECTOR C-11 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the connector C-11.
•  Connect the connector C-07.
•  Connect the connector 2 and 3 which has BCM terminals 3C,3D and 2D,2C.
•  Connect the negative battery cable.
•  Switch the ignition ON (engine off).
•  Measure the voltage at BCM terminals 2D and 2C.
•  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-07 and connector C-11 because the wiring harness is shorted to the power supply.
18
INSPECT CAN LINE BETWEEN CONNECTOR C-11 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  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 25.
19
INSPECT CAN LINE BETWEEN CONNECTORS C-51 AND C-52 AND CONNECTOR C-11 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the connectors C-51 and C-52.
•  Connect the connector C-11.
•  Connect the negative battery cable.
•  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 connectors C-51 and C-52 and connector C-11 because the wiring harness is shorted to the power supply.
20
INSPECT CAN LINE BETWEEN LASER SENSOR AND CONNECTORS C-51 AND C-52 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at laser sensor terminals D and C.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to Step 22.
No
Go to the next step.
21
INSPECT LASER SENSOR FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the laser sensor connector.
•  Connect the connectors C-51 and C-52.
•  Connect the negative battery cable.
•  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 laser sensor because there is a short to the power supply in the laser sensor.
No
Repair or replace the wiring harness between the laser sensor and connectors C-51 and C-52 because the wiring harness is shorted to the power supply.
22
INSPECT CAN LINE BETWEEN FORWARD SENSING CAMERA (FSC) AND CONNECTORS C-51 AND C-52 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-11 and connectors C-51 and C-52 because the wiring harness is shorted to the power supply.
No
Go to the next step.
23
INSPECT CAN LINE BETWEEN CONNECTORS C-51 AND C-52 AND CONNECTOR C-23 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the connector C-23.
•  Connect the negative battery cable.
•  Switch the ignition ON (engine off).
•  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 connectors C-51 and C-52 and connector C-23 because the wiring harness is shorted to the power supply.
No
Go to the next step.
24
INSPECT FORWARD SENSING CAMERA (FSC) FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the forward sensing camera (FSC) connector.
•  Connect the connector C-23.
•  Connect the connectors C-51 and C-52.
•  Connect the negative battery cable.
•  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).
No
Repair or replace the wiring harness between the forward sensing camera (FSC) and connector C-23 because the wiring harness is shorted to the power supply.
25
INSPECT CAN LINE BETWEEN CONNECTOR C-36 AND DLC-2 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the connector C-36.
•  Connect the negative battery cable.
•  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-36 and DLC-2 because the wiring harness is shorted to the power supply.
26
INSPECT CAN LINE BETWEEN EPS CONTROL MODULE AND CONNECTOR C-36 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at EPS control module terminals 1G and 1H.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to Step 28.
No
Go to the next step.
27
INSPECT EPS CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the EPS control module connector.
•  Connect the connector C-36.
•  Connect the negative battery cable.
•  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.
No
Repair or replace the wiring harness between the EPS control module and connector C-36 because the wiring harness is shorted to the power supply.
28
INSPECT CAN LINE BETWEEN CONNECTOR C-36 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Measure the voltage at instrument cluster terminals 1B and 1D.
•  Is the voltage between 1.5—3.5 V?
Yes
Repair or replace the wiring harness between the connector C-11 and connector C-36 because the wiring harness is shorted to the power supply.
No
Go to the next step.
29
INSPECT CAN LINE BETWEEN CONNECTOR C-36 AND CONNECTOR C-37 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the connector C-37.
•  Connect the connector C-36.
•  Connect the negative battery cable.
•  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-36 and connector C-37 because the wiring harness is shorted to the power supply.
30
INSPECT CAN LINE BETWEEN START STOP UNIT AND CONNECTOR C-37 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 32.
No
Go to the next step.
31
INSPECT START STOP UNIT FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the start stop unit connector.
•  Connect the connector C-37.
•  Connect the negative battery cable.
•  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.
No
Repair or replace the wiring harness between the start stop unit and connector C-37 because the wiring harness is shorted to the power supply.
32
INSPECT CAN LINE BETWEEN CONNECTIVITY MASTER UNIT (CMU) AND CONNECTOR C-37 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 34.
No
Go to the next step.
33
INSPECT CONNECTIVITY MASTER UNIT (CMU) FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the connectivity master unit (CMU) connector.
•  Connect the connector C-37.
•  Connect the negative battery cable.
•  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).
No
Repair or replace the wiring harness between the connectivity master unit (CMU) and connector C-37 because the wiring harness is shorted to the power supply.
34
INSPECT CAN LINE BETWEEN CONNECTOR C-37 AND INSTRUMENT CLUSTER AND ACTIVE DRIVING DISPLAY FOR SHORT TO POWER SUPPLY
•  Measure the voltage at instrument cluster terminals 1B and 1D.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to the next step.
No
Go to Step 36.
35
INSPECT SAS CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the SAS control module connector.
•  Connect the connector C-37.
•  Connect the negative battery cable.
•  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.
No
Repair or replace the wiring harness between the SAS control module and connector C-37 because the wiring harness is shorted to the power supply.
36
INSPECT CAN LINE BETWEEN INSTRUMENT CLUSTER AND CONNECTOR C-37 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the instrument cluster connector.
•  Connect the connector C-37.
•  Connect the negative battery cable.
•  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 instrument cluster and connector C-37 because the wiring harness is shorted to the power supply.
37
INSPECT CAN LINE BETWEEN INSTRUMENT CLUSTER AND ACTIVE DRIVING DISPLAY FOR SHORT TO POWER SUPPLY
•  Measure the voltage at active driving display terminals J and H.
•  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.
No
Go to the next step.
38
INSPECT ACTIVE DRIVING DISPLAY FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the active driving display connector.
•  Connect the instrument cluster connector.
•  Connect the negative battery cable.
•  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 active driving display connector because there is a short to the power supply in the active driving display connector.
No
Repair or replace the wiring harness between the active driving display and instrument cluster because the wiring harness is shorted to the power supply.