DETERMINING SHORT TO POWER SUPPLY LOCATION (HS-CAN) [SKYACTIV-D 2.2 (R.H.D.)]


id100206000700

Caution
•  Perform the following malfunction diagnosis only when it is diagnosed with a short to the power supply by CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-D 2.2 (R.H.D.)]. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-D 2.2 (R.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.

Step

Inspection

Action

1
INSPECT FOR SHORT TO POWER SUPPLY BETWEEN FRONT BODY CONTROL MODULE (FBCM) AND INSTRUMENT CLUSTER
•  Disconnect the negative battery cable.
•  Disconnect connector 2 which has front body control module (FBCM) terminals 2K and 2I
•  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 5.
2
INSPECT CAN LINE BETWEEN TCM OR AFS CONTROL MODULE AND FRONT BODY CONTROL MODULE (FBCM) FOR SHORT TO POWER SUPPLY
•  Measure the voltage at TCM terminals E and F. (ATX)
•  Measure the voltage at AFS control module terminals A and B. (MTX)
•  Is the voltage between 1.5 — 3.5 V?
Yes
Go to Step 31.
No
•  Go to the next step. (ATX)
•  Go to Step 4. (MTX)
3
INSPECT CAN LINE BETWEEN TCM AND CONNECTOR C-01 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect connector C-01.
•  Connect the negative battery cable.
•  Switch the ignition ON (engine off).
•  Measure the voltage at TCM terminals E and F.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Repair or replace the wiring harness between connector C-01 and the front body control module (FBCM) because the wiring harness is shorted to the power supply.
No
Go to the next step.
4
INSPECT TCM OR AFS CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect the TCM connector. (ATX)
•  Connect connector C-01. (ATX)
•  Disconnect the AFS control module connector. (MTX)
•  Connect connector 2 which has front body control module (FBCM) terminals 2K and 2I
•  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. (ATX)
•  Replace the AFS control module because there is a short to the power supply in the AFS control module. (MTX)
No
•  Repair or replace the wiring harness between TCM and connector C-01 because the wiring harness is shorted to the power supply. (ATX)
•  Repair or replace the wiring harness between AFS control module and the front body control module (FBCM) because the wiring harness is shorted to the power supply. (MTX)
5
INSPECT CAN LINE BETWEEN CONNECTOR C-04 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect connector C-04.
•  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. (ATX)
•  Repair or replace the wiring harness between the front body control module (FBCM) and connector C-04 because the wiring harness is shorted to the power supply. (MTX)
No
Go to Step 7.
6
INSPECT AFS CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect the AFS control module connector.
•  Connect connector 2 which has front body control module (FBCM) terminals 2K and 2I
•  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 AFS control module because there is a short to the power supply in the AFS control module.
No
Repair or replace the wiring harness between AFS control module and the front body control module (FBCM) /connector C-04 because the wiring harness is shorted to the power supply.
7
INSPECT CAN LINE BETWEEN CONNECTORS C-58 AND C-59 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect connectors C-58 and C-59.
•  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 11.
8
INSPECT CAN LINE BETWEEN POSITION MEMORY CONTROL MODULE AND CONNECTORS C-58 AND C-59 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at position memory control module terminals 1C and 1E.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Repair or replace the wiring harness between connector C-04 and connectors C-58 and C-59 because the wiring harness is shorted to the power supply.
No
Go to the next step.
9
INSPECT CAN LINE BETWEEN POSITION MEMORY CONTROL MODULE AND CONNECTOR C-55 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect connector C-55.
•  Connect the negative battery cable.
•  Switch the ignition ON (engine off).
•  Measure the voltage at position memory control module terminals 1C and 1E.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Repair or replace the wiring harness between connector C-55 and connectors C-58 and C-59 because the wiring harness is shorted to the power supply.
No
Go to the next step.
10
INSPECT POSITION MEMORY CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Connect connectors C-58 and C-59.
•  Connect connector C-55.
•  Disconnect the position memory 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 position memory control module because there is a short to the power supply in the position memory control module.
No
Repair or replace the wiring harness between the position memory control module and connectors C-55 because the wiring harness is shorted to the power supply.
11
INSPECT CAN LINE BETWEEN CONNECTORS C-49 AND C-50 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect connectors C-49 and C-50.
•  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 14.
12
INSPECT CAN LINE BETWEEN 4WD CONTROL MODULE AND CONNECTORS C-49 AND C-50 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at 4WD control module terminals G and H.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Repair or replace the wiring harness between connectors C-58 and C-59 and connectors C-49 and C-50 because the wiring harness is shorted to the power supply.
No
Go to the next step.
13
INSPECT 4WD CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Connect connectors C-49 and C-50
•  Disconnect the 4WD 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 4WD control module because there is a short to the power supply in the 4WD control module.
No
Repair or replace the wiring harness between the 4WD control module and connectors C-49 and C-50 because the wiring harness is shorted to the power supply.
14
INSPECT CAN LINE BETWEEN CONNECTOR C-10 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect connector C-10.
•  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 connectors C-49 and C-50 and connector C-10 because the wiring harness is shorted to the power supply.
No
Go to the next step.
15
INSPECT CAN LINE BETWEEN CONNECTOR C-11 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect 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
Go to Step 22.
16
INSPECT CAN LINE BETWEEN CONNECTOR C-11 AND LASER SENSOR / FORWARD SENSING CAMERA FOR SHORT TO POWER SUPPLY
•  Measure the voltage at laser sensor terminals D and C (with smart city brake support).
•  Measure the voltage at the forward sensing camera terminals E and C (with Hi-beam control (HBC) system).
•  Is the voltage between 1.5 — 3.5 V?
Yes
Repair or replace the wiring harness between connector C-10 and connector C-11 because the wiring harness is shorted to the power supply.
No
Go to the next step.
17
INSPECT CAN LINE BETWEEN LASER SENSOR AND CONNECTOR C-42 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect connector C-42.
•  Connect the negative battery cable.
•  Switch the ignition ON (engine off).
•  Measure the voltage at laser sensor terminals D and C.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Go to Step 19.
No
Go to the next step.
18
INSPECT LASER SENSOR FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect the laser sensor connector.
•  Connect connector C-42.
•  Connect 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
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 connector C-42 because the wiring harness is shorted to the power supply.
19
INSPECT FORWARD SENSING CAMERA FOR SHORT TO POWER SUPPLY
•  Measure the voltage at forward sensing camera 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 connector C-42 because the wiring harness is shorted to the power supply.
No
Go to the next step.
20
INSPECT CAN LINE BETWEEN FORWARD SENSING CAMERA AND CONNECTOR C-42 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect connector C-27.
•  Connect the negative battery cable.
•  Switch the ignition ON (engine off).
•  Measure the voltage at forward sensing camera terminals E and C.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Repair or replace the wiring harness between connector C-42 and connector C-27 because the wiring harness is shorted to the power supply.
No
Go to the next step.
21
INSPECT FORWARD SENSING CAMERA FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect the forward sensing camera connector.
•  Connect connector C-27.
•  Connect connector C-42.
•  Connect 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
Replace the forward sensing camera because there is a short to the power supply in the forward sensing camera.
No
Repair or replace the wiring harness between the forward sensing camera and connector C-27 because the wiring harness is shorted to the power supply.
22
INSPECT CAN LINE BETWEEN CONNECTOR C-51, C-52 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect connector C-51, 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
Go to Step 30.
No
Go to the next step.
23
INSPECT CAN LINE BETWEEN CONNECTOR C-34 AND DLC-2 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect connector C-34.
•  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-34 and DLC-2 because the wiring harness is shorted to the power supply.
24
INSPECT CAN LINE BETWEEN START STOP UNIT AND CONNECTOR C-34 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 26.
No
Go to the next step.
25
INSPECT START STOP UNIT FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Connect connector C-34.
•  Disconnect the start stop 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 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-34 because the wiring harness is shorted to the power supply.
26
INSPECT CAN LINE BETWEEN EPS CONTROL MODULE AND CONNECTOR C-34 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at EPS control module terminals 2A and 2D. (connector 8-pin type)
•  Measure the voltage at EPS control module terminals 2B and 2D. (connector 4-pin type)
•  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 (LOCK).
•  Disconnect the negative battery cable.
•  Connect connector C-34.
•  Disconnect the EPS 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 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-34 because the wiring harness is shorted to the power supply.
28
INSPECT CAN LINE BETWEEN INSTRUMENT CLUSTER AND CONNECTOR C-34 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
Repair or replace the wiring harness between connector C-51, C-52 and connector C-34 because the wiring harness is shorted to the power supply.
No
Go to the next step.
29
INSPECT INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Connect connector C-34.
•  Disconnect 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 instrument cluster because the instrument cluster is shorted to the power supply.
No
Repair or replace the wiring harness between the instrument cluster and connector C-34 because the wiring harness is shorted to the power supply.
30
INSPECT CAN LINE BETWEEN SAS CONTROL MODULE AND CONNECTOR C-51, C-52 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect the SAS control module connector.
•  Connect the negative battery cable.
•  Switch the ignition ON (engine off).
•  Measure the voltage at SAS control module terminals 3K and 3L (wiring harness side).
•  Is the voltage 0 V?
Yes
Go to the next step.
No
Repair or replace the wiring harness between the SAS control module and connector C-51, C-52 because the wiring harness is shorted to the power supply.
31
INSPECT CAN LINE BETWEEN CONNECTOR C-11 AND CONNECTOR C-51, C-52 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Connect connector C-51, 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 SAS control module because there is a short to the power supply in the SAS control module.
No
Repair or replace the wiring harness between connector C-11 and connector C-51, C-52 because the wiring harness is shorted to the power supply.
32
INSPECT CAN LINE BETWEEN PCM AND FRONT BODY CONTROL MODULE (FBCM) FOR SHORT TO POWER SUPPLY
•  Measure voltage at PCM terminals 2AK and 2AL.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Replace the front body control module (FBCM) because there is a short to the power supply in the front body control module (FBCM).
No
•  Go to Step 35. (ATX)
•  Go to the next step. (MTX)
33
INSPECT CAN LINE BETWEEN CONNECTOR C-01 AND FRONT BODY CONTROL MODULE (FBCM) FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect connector C-01.
•  Connect connector 2 which has front body control module (FBCM) terminals 2K and 2I.
•  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 connector C-01 and the front body control module (FBCM) because the wiring harness is shorted to the power supply.
34
INSPECT CAN LINE BETWEEN CONNECTOR C-01 AND CONNECTOR C-32 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Disconnect connector C-32.
•  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
Go to Step 36.
No
Repair or replace the wiring harness between connector C-01 and connector C-32 because the wiring harness is shorted to the power supply.
35
INSPECT CAN LINE BETWEEN CONNECTOR C-32 AND FRONT BODY CONTROL MODULE (FBCM) FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Connect connector 2 which has front body control module (FBCM) terminals 2K and 2I.
•  Disconnect connector C-32.
•  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 connector C-32 and front body control module (FBCM) because the wiring harness is shorted to the power supply.
36
INSPECT CAN LINE BETWEEN DSC HU/CM AND CONNECTOR C-32 FOR SHORT TO POWER SUPPLY
•  Measure voltage at DSC HU/CM terminals AF and AC.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Go to Step 38.
No
Go to the next step.
37
INSPECT DSC HU/CM FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Connect connector C-32.
•  Disconnect the DSC HU/CM 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 DSC HU/CM because the DSC HU/CM is shorted to the power supply.
No
Repair or replace the wiring harness between the DSC HU/CM and connector C-32 because the wiring harness is shorted to the power supply.
38
INSPECT PCM FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery cable.
•  Connect connector C-32.
•  Disconnect the PCM 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 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-32 because the wiring harness is shorted to the power supply.