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 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 FOR SHORT TO POWER SUPPLY BETWEEN FRONT BODY CONTROL MODULE (FBCM) AND INSTRUMENT CLUSTER
•  Disconnect the negative battery terminal.
•  Disconnect connector 2 which has front body control module (FBCM) terminals 2K and 2I
•  Connect the negative battery terminal.
•  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.
2
INSPECT CAN LINE BETWEEN TCM AND FRONT BODY CONTROL MODULE (FBCM) 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 5.
No
Go to the next step.
3
INSPECT CAN LINE BETWEEN TCM AND CONNECTOR C-01 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connector C-01.
•  Connect the negative battery terminal.
•  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 the front body control module (FBCM) and connector C-01 because the wiring harness is shorted to the power supply.
No
Go to the next step.
4
INSPECT TCM FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the TCM connector.
•  Connect connector C-01.
•  Connect connector 2 which has front body control module (FBCM) terminals 2K and 2I
•  Connect the negative battery terminal.
•  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/INSTALLATION [GW6A-EL, GW6AX-EL].)
No
Repair or replace the wiring harness between the TCM and connector C-01 because the wiring harness is shorted to the power supply.
5
INSPECT CAN LINE BETWEEN PCM AND FRONT BODY CONTROL MODULE (FBCM) 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 front body control module (FBCM) because there is a short to the power supply in the front body control module (FBCM).
(See FRONT BODY CONTROL MODULE (FBCM) REMOVAL/INSTALLATION.)
No
Go to the next step.
6
INSPECT CAN LINE BETWEEN CONNECTOR C-42 AND FRONT BODY CONTROL MODULE (FBCM) FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connector C-42.
•  Connect connector 2 which has front body control module (FBCM) terminals 2K and 2I
•  Connect the negative battery terminal.
•  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 front body control module (FBCM) and connector C-42 because the wiring harness is shorted to the power supply.
7
INSPECT CAN LINE BETWEEN DSC HU/CM AND CONNECTOR C-42 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at DSC HU/CM terminals C and D.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Go to Step 9.
No
Go to the next step.
8
INSPECT DSC HU/CM FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the DSC HU/CM connector.
•  Connect connector C-42.
•  Connect the negative battery terminal.
•  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.)
No
Repair or replace the wiring harness between DSC HU/CM and connector C-42 because the wiring harness is shorted to the power supply.
9
INSPECT CAN LINE BETWEEN RADAR UNIT AND CONNECTOR C-42 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 51.
No
Go to the next step.
10
INSPECT RADAR UNIT FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the radar unit connector.
•  Connect connector C-42.
•  Connect the negative battery terminal.
•  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.
(See RADAR UNIT REMOVAL/INSTALLATION.)
No
Repair or replace the wiring harness between radar unit and connector C-42 because the wiring harness is shorted to the power supply.
11
INSPECT CAN LINE BETWEEN CONNECTORS C-43, C-44 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connectors C-43, C-44.
•  Connect the negative battery terminal.
•  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 ADAPTIVE LED HEADLIGHTS CONTROL MODULE / AUTO LEVELING CONTROL MODULE AND CONNECTORS C-43, C-44 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at adaptive LED headlights control module / auto leveling control module terminals A and B.(JMZ TB*****# 500001-699999, JM5 TC*****# 200001-399999, JM7 TC*****# 200001-399999)
•  Measure the voltage at adaptive LED headlightscontrol module / auto leveling control moduleterminals L and M. (JMZ TB*****# 700001-,JM5 TC*****# 400001-, JM7 TC*****# 400001-)
•  Is the voltage between 1.5 — 3.5 V?
Yes
Repair or replace the wiring harness between the front body control module (FBCM) and connectors C-43, C-44 because the wiring harness is shorted to the power supply.
No
Go to the next step.
13
INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE / AUTO LEVELING CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Connect connectors C-43, C-44.
•  Disconnect the adaptive LED headlights control module / auto leveling control module connector.
•  Connect the negative battery terminal.
•  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.
(See ADAPTIVE LED HEADLIGHTS CONTROL MODULE REMOVAL/INSTALLATION.)
(See AUTO LEVELING CONTROL MODULE REMOVAL/INSTALLATION.)
No
Repair or replace the wiring harness between the adaptive LED headlights control module / auto leveling control module and connectors C-43, C-44 because the wiring harness is shorted to the power supply.
14
INSPECT CAN LINE BETWEEN CONNECTOR C-07 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connector C-07.
•  Connect the negative battery terminal.
•  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-07 and connectors C-43, C-44 because the wiring harness is shorted to the power supply.
No
Go to the next step.
15
INSPECT CAN LINE BETWEEN CONNECTORS C-54, C-55 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connectors C-54, C-55.
•  Connect the negative battery terminal.
•  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 19.
16
INSPECT CAN LINE BETWEEN POSITION MEMORY CONTROL MODULE AND CONNECTORS C-54, C-55 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 the connector C-07 and connectors C-54, C-55 because the wiring harness is shorted to the power supply.
No
Go to the next step.
17
INSPECT CAN LINE BETWEEN POSITION MEMORY CONTROL MODULE AND CONNECTOR C-29 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connector C-29.
•  Connect the negative battery terminal.
•  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 the connectors C-54, C-55 and connector C-29 because the wiring harness is shorted to the power supply.
No
Go to the next step.
18
INSPECT POSITION MEMORY CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the position memory control module connector.
•  Connect connector C-29.
•  Connect connectors C-54, C-55.
•  Connect the negative battery terminal.
•  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.
(See POSITION MEMORY CONTROL MODULE REMOVAL/INSTALLATION.)
No
Repair or replace the wiring harness between the position memory control module and connector C-29 because the wiring harness is shorted to the power supply.
19
INSPECT CAN LINE BETWEEN CONNECTORS C-51, C-52 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connectors C-51, C-52.
•  Connect the negative battery terminal.
•  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 26.
20
INSPECT CAN LINE BETWEEN AUDIO AMPLIFIER AND CONNECTORS C-51, C-52 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 22.
No
Go to the next step.
21
INSPECT AUDIO AMPLIFIER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the audio amplifier connector.
•  Connect connectors C-51, C-52.
•  Connect the negative battery terminal.
•  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 connectors C-51, C-52 because the wiring harness is shorted to the power supply.
22
INSPECT CAN LINE BETWEEN 4WD CONTROL MODULE AND CONNECTORS C-51, C-52 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
Go to Step 24.
No
Go to the next step.
23
INSPECT 4WD CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the 4WD control module connector.
•  Connect connectors C-51, C-52.
•  Connect the negative battery terminal.
•  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.
(See 4WD CONTROL MODULE REMOVAL/INSTALLATION.)
No
Repair or replace the wiring harness between the 4WD control module and connectors C-51, C-52 because the wiring harness is shorted to the power supply.
24
INSPECT CAN LINE BETWEEN POWER LIFTGATE (PLG) CONTROL MODULE AND CONNECTOR C-19 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connector C-19.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at power liftgate (PLG) control module terminals 1B and 1A.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Repair or replace the wiring harness between connector C-19 and connectors C-54, C-55 and connectors C-51, C-52 because the wiring harness is shorted to the power supply.
No
Go to the next step.
25
INSPECT POWER LIFTGATE (PLG) CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the power liftgate (PLG) control module connector.
•  Connect connector C-19.
•  Connect connectors C-51, C-52.
•  Connect the negative battery terminal.
•  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 power liftgate (PLG) control module because there is a short to the power supply in the power liftgate (PLG) control module.
(See POWER LIFTGATE (PLG) CONTROL MODULE REMOVAL/INSTALLATION.)
No
Repair or replace the wiring harness between the power liftgate (PLG) control module and connector C-19 because the wiring harness is shorted to the power supply.
26
INSPECT CAN LINE BETWEEN CONNECTORS C-47, C-48 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connectors C-47, C-48.
•  Connect the negative battery terminal.
•  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 29.
27
INSPECT CAN LINE BETWEEN ELECTRIC PARKING BRAKE CONTROL MODULE AND CONNECTORS C-47, C-48 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at electric parking brake control module terminals 2G and 2F.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Repair or replace the wiring harness between connectors C-47, C-48 and connectors C-51, C-52 because the wiring harness is shorted to the power supply.
No
Go to the next step.
28
INSPECT ELECTRIC PARKING BRAKE CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the electric parking brake control module connector.
•  Connect connectors C-47, C-48.
•  Connect the negative battery terminal.
•  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 electric parking brake control module because there is a short to the power supply in the electric parking brake control module.
(See ELECTRIC PARKING BRAKE CONTROL MODULE REMOVAL/INSTALLATION.)
No
Repair or replace the wiring harness between the electric parking brake control module and connectors C-47, C-48 because the wiring harness is shorted to the power supply.
29
INSPECT CAN LINE BETWEEN CONNECTORS C-65, C-66 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connectors C-65, C-66.
•  Connect the negative battery terminal.
•  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 33.
30
INSPECT CAN LINE BETWEEN REAR ONE-TOUCH WALK-IN CONTROL MODULE AND CONNECTORS C-65, C-66 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at rear one-touch walk-in control module terminals 1C and 1E.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Repair or replace the wiring harness between the connectors C-47,C-48 and connectors C-65, C-66 because the wiring harness is shorted to the power supply.
No
Go to the next step.
31
INSPECT CAN LINE BETWEEN REAR ONE-TOUCH WALK-IN CONTROL MODULE AND CONNECTOR C-64 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connector C-64.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at rear one-touch walk-in control module terminals 1C and 1E.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Repair or replace the wiring harness between the connectors C-65, C-66 and connector C-64 because the wiring harness is shorted to the power supply.
No
Go to the next step.
32
INSPECT REAR ONE-TOUCH WALK-IN CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the rear one-touch walk-in control module connector.
•  Connect connector C-64.
•  Connect connectors C-65, C-66.
•  Connect the negative battery terminal.
•  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 rear one-touch walk-in control module because there is a short to the power supply in the rear one-touch walk-in control module.
(See REAR ONE-TOUCH WALK-IN CONTROL MODULE REMOVAL/INSTALLATION.)
No
Repair or replace the wiring harness between the rear one-touch walk-in control module and connector C-64 because the wiring harness is shorted to the power supply.
33
INSPECT CAN LINE BETWEEN CONNECTOR C-13 AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connector C-13.
•  Connect the negative battery terminal.
•  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 connector C-13 and connectors C-47, C-48 because the wiring harness is shorted to the power supply.
No
Go to the next step.
34
INSPECT CAN LINE BETWEEN CONNECTOR C-13 AND CONNECTOR C-16 AND DLC-2 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connector C-16.
•  Connect connector C-13.
•  Connect the negative battery terminal.
•  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-13 and connector C-16 and DLC-2 because the wiring harness is shorted to the power supply.
35
INSPECT CAN LINE BETWEEN CONNECTOR C-16 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
Go to the next step.
No
Go to Step 39.
36
INSPECT LASER SENSOR FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the laser sensor connector.
•  Connect connector C-16.
•  Connect the negative battery terminal.
•  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.
(See LASER SENSOR REMOVAL/INSTALLATION.)
No
•  Go to the next step. (connector 10-pin type)
•  Go to Step 38. (connector 12-pin type)
37
INSPECT CAN LINE BETWEEN FORWARD SENSING CAMERA (FSC) AND CONNECTOR C-34 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect connector C-34.
•  Connect the negative battery terminal.
•  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 connector C-16 and connector C-34 because the wiring harness is shorted to the power supply.
No
Go to the next step.
38
INSPECT FORWARD SENSING CAMERA (FSC) FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the forward sensing camera (FSC) connector.
•  Connect the connector C-34.(connector 10-pin type)
•  Connect the negative battery terminal.
•  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-34 because the wiring harness is shorted to the power supply. (connector 10-pin type)
•  Repair or replace the wiring harness between the forward sensing camera (FSC) and connector C-16 because the wiring harness is shorted to the power supply. (connector 12-pin type)
39
INSPECT CAN LINE BETWEEN CONNECTOR C-16 AND CONNECTOR C-45 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect connector C-45.
•  Connect connector C-16.
•  Connect the negative battery terminal.
•  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-16 and connector C-45 because the wiring harness is shorted to the power supply.
40
INSPECT CAN LINE BETWEEN EPS CONTROL MODULE AND CONNECTOR C-45 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at EPS control module terminals 2B and 2D.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Go to Step 38.
No
Go to the next step.
41
INSPECT EPS CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the EPS control module connector.
•  Connect connector C-45.
•  Connect the negative battery terminal.
•  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
Repair or replace the wiring harness between the EPS control module and connector C-45 because the wiring harness is shorted to the power supply.
42
INSPECT CAN LINE BETWEEN START STOP UNIT AND CONNECTOR C-45 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 44.
No
Go to the next step.
43
INSPECT START STOP UNIT FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the start stop unit connector.
•  Connect connector C-45.
•  Connect the negative battery terminal.
•  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-45 because the wiring harness is shorted to the power supply.
44
INSPECT CAN LINE BETWEEN CONNECTIVITY MASTER UNIT (CMU) AND CONNECTOR C-45 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 46.
No
Go to the next step.
45
INSPECT CONNECTIVITY MASTER UNIT (CMU) FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the connectivity master unit (CMU) connector.
•  Connect connector C-45.
•  Connect the negative battery terminal.
•  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-45 because the wiring harness is shorted to the power supply.
46
INSPECT CAN LINE BETWEEN ACTIVE DRIVING DISPLAY AND CONNECTOR C-45 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at active driving display terminals I and L.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Go to Step 48.
No
Go to the next step.
47
INSPECT ACTIVE DRIVING DISPLAY FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the active driving display connector.
•  Connect connector C-45.
•  Connect the negative battery terminal.
•  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 because there is a short to the power supply in the active driving display.
(See ACTIVE DRIVING DISPLAY REMOVAL/INSTALLATION.)
No
Repair or replace the wiring harness between the active driving display and connector C-45 because the wiring harness is shorted to the power supply.
48
INSPECT CAN LINE BETWEEN TUNER AND AMP UNIT (TAU) AND CONNECTOR C-45 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at tuner and amp unit (TAU) terminals 2E and 2C.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Go to Step 50.
No
Go to the next step.
45
INSPECT TUNER AND AMP UNIT (TAU) FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the tuner and amp unit (TAU) connector.
•  Connect connector C-45.
•  Connect the negative battery terminal.
•  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 tuner and amp unit (TAU) because there is a short to the power supply in the tuner and amp unit (TAU).
(See TUNER AND AMP UNIT (TAU) REMOVAL/INSTALLATION.)
No
Repair or replace the wiring harness between the tuner and amp unit (TAU) and connector C-45 because the wiring harness is shorted to the power supply.
50
INSPECT CAN LINE BETWEEN MAZDA ERA-GLONASS CONTROL MODULE AND CONNECTOR C-45 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at MAZDA ERA-GLONASS control module terminals 1Q and 1S.
•  Is the voltage between 1.5 — 3.5 V?
Yes
Go to Step 52.
No
Go to the next step.
51
INSPECT MAZDA ERA-GLONASS CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the MAZDA ERA-GLONASS control module connector.
•  Connect connector C-45.
•  Connect the negative battery terminal.
•  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 MAZDA ERA-GLONASS control module because there is a short to the power supply in the MAZDA ERA-GLONASS control module.
(See MAZDA ERA-GLONASS CONTROL MODULE REMOVAL/INSTALLATION.)
No
Repair or replace the wiring harness between the MAZDA ERA-GLONASS control module and connector C-45 because the wiring harness is shorted to the power supply.
52
INSPECT CAN LINE BETWEEN INSTRUMENT CLUSTER AND CONNECTOR C-45 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 Step 54.
No
Go to the next step.
53
INSPECT INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the instrument cluster connector.
•  Connect connector C-45.
•  Connect the negative battery terminal.
•  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-45 because the wiring harness is shorted to the power supply.
54
INSPECT SAS CONTROL MODULE FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the SAS control module connector.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at SAS control module terminals 3B and 3C (wiring harness side).
•  Is the voltage 0 V?
Yes
Replace the SAS control module because there is a short to the power supply in the SAS control module.
(See SAS CONTROL MODULE REMOVAL/INSTALLATION.)
No
Repair or replace the wiring harness between SAS control module and connector C-45 because the wiring harness is shorted to the power supply.
55
INSPECT PCM FOR SHORT TO POWER SUPPLY
•  Switch the ignition off (LOCK).
•  Disconnect the negative battery terminal.
•  Disconnect the PCM connector.
•  Connect connector C-42.
•  Connect the negative battery terminal.
•  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 2.5T].)
No
Repair or replace the wiring harness between the PCM and connector C-42 because the wiring harness is shorted to the power supply.