DETERMINING SHORT TO POWER SUPPLY LOCATION (MS-CAN) [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (L.H.D.)]

id100208001000

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-G 2.0, SKYACTIV-G 2.5 (L.H.D.)].

System wiring diagram

am6zzw00011782

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 CONNECTOR C-35 AND INSTRUMENT CLUSTER •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect connector C-35. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at instrument cluster terminals C and E. •  Is the voltage between 1.5 - 3.5 V?	Yes	Go to Step 3.
		No	Go to the next step.
2	INSPECT INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect the instrument cluster connector. •  Connect connector C-35. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals L and K. •  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-35 because the wiring harness is shorted to the power supply.
3	INSPECT FOR SHORT TO POWER SUPPLY BETWEEN CONNECTOR C-35 AND PARKING SENSOR CONTROL MODULE •  Measure the voltage at parking sensor control module terminals AA and AB. •  Is the voltage between 1.5 - 3.5 V?	Yes	Go to Step 5.
		No	Go to the next step.
4	INSPECT PARKING SENSOR CONTROL MODULE FOR SHORT TO POWER SUPPLY •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect the parking sensor control module connector. •  Connect connector C-35. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals L and K. •  Is the voltage between 1.5 - 3.5 V?	Yes	Replace the parking sensor control module because there is a short to power supply in the parking sensor control module. (See PARKING SENSOR CONTROL MODULE REMOVAL/INSTALLATION.)
		No	Repair or replace the wiring harness between the parking sensor control module and connector C-35 because the wiring harness is shorted to the power supply.
5	INSPECT FOR SHORT TO POWER SUPPLY BETWEEN CONNECTOR C-35 AND CLIMATE CONTROL UNIT OR CLOCK •  Measure the voltage at climate control unit terminals 1S and 1U (with full-auto air conditioner). •  Measure the voltage at clock terminals E and G (with manual air conditioner). •  Is the voltage between 1.5 - 3.5 V?	Yes	Go to Step 7.
		No	Go to the next step.
6	INSPECT CLIMATE CONTROL UNIT OR CLOCK FOR SHORT TO POWER SUPPLY •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect the climate control unit or clock connector. •  Connect connector C-35. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals L and K. •  Is the voltage between 1.5 - 3.5 V?	Yes	Replace the climate control unit or clock because there is a short to the power supply in the climate control unit or clock. (See CLOCK REMOVAL/INSTALLATION.) (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER].)
		No	Repair or replace the wiring harness between the climate control unit or clock and connector C-35 because the wiring harness is shorted to the power supply.
7	INSPECT FOR SHORT TO POWER SUPPLY BETWEEN CONNECTOR C-35 AND AUDIO UNIT •  Measure the voltage at audio unit terminals 1O and 1Q. •  Is the voltage between 1.5 - 3.5 V?	Yes	Go to Step 9.
		No	Go to the next step.
8	INSPECT AUDIO UNIT FOR SHORT TO POWER SUPPLY •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect the audio unit connector. •  Connect connector C-35. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals L and K. •  Is the voltage between 1.5 - 3.5 V?	Yes	Replace the audio unit because there is a short to the power supply in the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION.)
		No	Repair or replace the wiring harness between the audio unit and connector C-35 because the wiring harness is shorted to the power supply.
9	INSPECT FOR SHORT TO POWER SUPPLY BETWEEN CONNECTOR C-34 AND REAR BODY CONTROL MODULE •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect the connector C-34. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at rear body control module (RBCM) terminals 3E and 3G. •  Is the voltage between 1.5 - 3.5 V?	Yes	Go to the next step.
		No	Go to Step 13.
10	INSPECT FOR SHORT TO POWER SUPPLY BETWEEN CONNECTORS C-34 AND DLC-2 •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect connector C-34. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals L and K. •  Is the voltage 0 V?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between DLC-2 and connector C-34 because the wiring harness is shorted to the power supply.
11	INSPECT FOR SHORT TO POWER SUPPLY BETWEEN CONNECTOR C-34 AND CLIMATE CONTROL UNIT •  Measure the voltage at climate control unit terminals U and W (with manual air conditioner). •  Is the voltage between 1.5 - 3.5 V?	Yes	Repair or replace the wiring harness between connector C-35 and connector C-34 because the wiring harness is shorted to the power supply.
		No	Go to the next step.
12	INSPECT CLIMATE CONTROL UNIT FOR SHORT TO POWER SUPPLY •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect the climate control unit connector. •  Connect connector C-34. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals L and K. •  Is the voltage between 1.5 - 3.5 V?	Yes	Replace the climate control unit because there is a short to the power supply in the climate control unit. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER].)
		No	Repair or replace the wiring harness between the climate control unit and connector C-34 because the wiring harness is shorted to the power supply.
13	INSPECT FOR SHORT TO POWER SUPPLY BETWEEN CONNECTOR C-34 AND CONNECTOR C-08 •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect the connector C-08. •  Connect the connector C-34. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals L and K. •  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-34 and connector C-08 because the wiring harness is shorted to the power supply.
14	INSPECT FOR SHORT TO POWER SUPPLY BETWEEN REAR VEHICLE MONITORING CONTROL MODULE (LH) AND REAR BODY CONTROL MODULE (RBCM) •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect the rear body control module (RBCM) connector. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at rear vehicle monitoring control modules (LH) terminals A and D. •  Is the voltage between 1.5 - 3.5 V?	Yes	Go to Step 17.
		No	Go to the next step.
15	INSPECT FOR SHORT TO POWER SUPPLY BETWEEN REAR VEHICLE MONITORING CONTROL MODULE (LH) AND CONNECTOR C-23 •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect connector C-23. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at rear vehicle monitoring control modules (LH) terminals A and D. •  Is the voltage between 1.5 - 3.5 V?	Yes	Repair or replace the wiring harness between the rear body control module (RBCM) and connector C-23 because the wiring harness is shorted to the power supply.
		No	Go to the next step.
16	INSPECT REAR VEHICLE MONITORING CONTROL MODULE (LH) FOR SHORT TO POWER SUPPLY •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect the rear vehicle monitoring control modules (LH) connector. •  Connect connector C-23. •  Connect the rear body control module (RBCM) connector. •  Connect connector C-08. •  Connect connector C-34. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals L and K. •  Is the voltage between 1.5 - 3.5 V?	Yes	Replace the rear vehicle monitoring control modules (LH) because there is a short to power supply in the rear vehicle monitoring control modules (LH). (See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
		No	Repair or replace the wiring harness between the rear vehicle monitoring control modules (LH) and connector C-23 because the wiring harness is shorted to the power supply.
17	INSPECT FOR SHORT TO POWER SUPPLY BETWEEN REAR MOUNT CAMERA AND REAR BODY CONTROL MODULE (RBCM) •  Measure the voltage at rear mount camera terminals G and H. •  Is the voltage between 1.5 - 3.5 V?	Yes	Go to Step 20.
		No	Go to the next step.
18	INSPECT FOR SHORT TO POWER SUPPLY BETWEEN REAR MOUNT CAMERA AND CONNECTOR C-21 •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect connector C-21. •  Connect the rear body control module (RBCM) connector. •  Connect connector C-08. •  Connect connector C-34. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals L and K. •  Is the voltage between 1.5 - 3.5 V?	Yes	Go to the next step.
		No	Repair or replace the wiring harness between the rear body control module (RBCM) and connector C-21 because the wiring harness is shorted to the power supply.
19	INSPECT REAR MOUNT CAMERA FOR SHORT TO POWER SUPPLY •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Disconnect the rear mount camera connector. •  Connect connector C-21. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals L and K. •  Is the voltage between 1.5 - 3.5 V?	Yes	Replace the rear mount camera because there is a short to power supply in the rear mount camera. (See REAR MOUNT CAMERA REMOVAL/INSTALLATION.)
		No	Repair or replace the wiring harness between the rear mount camera and connector C-21 because the wiring harness is shorted to the power supply.
20	INSPECT REAR BODY CONTROL MODULE (RBCM) FOR SHORT TO POWER SUPPLY •  Switch the ignition off (LOCK). •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Connect connector C-08. •  Connect connector C-34. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) •  Switch the ignition ON (engine off). •  Measure the voltage at DLC-2 terminals L and K. •  Is the voltage between 1.5 - 3.5 V?	Yes	Replace the rear body control module (RBCM) because there is a short to the power supply in the rear body control module (RBCM). (See REAR BODY CONTROL MODULE (RBCM) REMOVAL/INSTALLATION.)
		No	Repair or replace the wiring harness between the rear body control module (RBCM) and connector C-08 because the wiring harness is shorted to the power supply.