DETERMINING SHORT TO POWER SUPPLY LOCATION (CAN-BUS No.1)

• When disconnecting the connector, verify that there is no looseness, damage, deformation, corrosion, or poor connection of the connector terminals.

• When inspecting the connector, touch it with a paper clip or similar thin pin without directly inserting a tester probe into the terminal.

• Disconnect the negative battery terminal before performing any work that requires handling of connectors.

Step	Inspection	Action
1	INSPECT CAN LINE BETWEEN BODY CONTROL MODULE (BCM) AND CONNECTOR C-39 FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the connector C-39. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • Is the voltage between 1.5—3.5 V?	Yes	Go to Step 3.
No	Go to the next step.
2	INSPECT BODY CONTROL MODULE (BCM) FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the connector 3 which has body control module (BCM) terminals 3X and 3W. • Connect the connector C-39. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W (wiring harness side). • Is the voltage between 1.5—3.5 V?	Yes	Replace the body control module (BCM) because there is a short to the power supply in the body control module (BCM). (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
No	Repair or replace the wiring harness between the connector C-39 and body control module (BCM) because the wiring harness is shorted to the power supply.
3	INSPECT CAN LINE BETWEEN EPS CONTROL MODULE AND CONNECTOR C-39 FOR SHORT TO POWER SUPPLY • Measure the voltage at EPS control module terminals 2C and 2A. • Is the voltage between 1.5—3.5 V?	Yes	Go to Step 5.
No	Go to the next step.
4	INSPECT EPS CONTROL MODULE FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the EPS control module connector. • Connect the connector C-39. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • 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 INSPECTION.)
No	Repair or replace the wiring harness between the EPS control module and connector C-39 because the wiring harness is shorted to the power supply.
5	INSPECT CAN LINE BETWEEN SELECTOR LEVER AND CONNECTOR C-39 FOR SHORT TO POWER SUPPLY • Measure the voltage at selector lever terminals D and B. • Is the voltage between 1.5—3.5 V?	Yes	Go to Step 7.
No	Go to the next step.
6	INSPECT SELECTOR LEVER FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the selector lever connector. • Connect the connector C-39. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • Is the voltage between 1.5—3.5 V?	Yes	Replace the selector lever because there is a short to the power supply in the selector lever. (See SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION.)
No	Repair or replace the wiring harness between the selector lever and connector C-39 because the wiring harness is shorted to the power supply.
7	INSPECT CAN LINE BETWEEN CONNECTOR C-39 AND CONNECTOR C-38 FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the connector C-38. • Connect the connector C-39. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • 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-38 and connector C-39 because the wiring harness is shorted to the power supply.
8	INSPECT CAN LINE BETWEEN AUTO LEVELING CONTROL MODULE / ADAPTIVE LED HEADLIGHTS CONTROL MODULE AND CONNECTOR C-38 FOR SHORT TO POWER SUPPLY • Measure the voltage at auto leveling control module / adaptive LED headlights control module terminals E and H. • Is the voltage between 1.5—3.5 V?	Yes	Go to Step 10.
No	Go to the next step.
9	INSPECT AUTO LEVELING CONTROL MODULE / ADAPTIVE LED HEADLIGHTS CONTROL MODULE FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the auto leveling control module / adaptive LED headlights control module connector. • Connect the connector C-38. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • Is the voltage between 1.5—3.5 V?	Yes	Replace the auto leveling control module / adaptive LED headlights control module because there is a short to the power supply in the auto leveling control module / adaptive LED headlights control module. (See AUTO LEVELING CONTROL MODULE REMOVAL/INSTALLATION.) (See ADAPTIVE LED HEADLIGHTS CONTROL MODULE REMOVAL/INSTALLATION.)
No	Repair or replace the wiring harness between the auto leveling control module / adaptive LED headlights control module and connector C-38 because the wiring harness is shorted to the power supply.
10	INSPECT CAN LINE BETWEEN CONNECTOR C-13 AND CONNECTOR C-38 FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the connector C-13. • Connect the connector C-38. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • 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-38 and connector C-13 because the wiring harness is shorted to the power supply.
11	INSPECT CAN LINE BETWEEN CONNECTOR C-21 AND CONNECTOR C-13 FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Connect the connector C-13. • Disconnect the connector C-21. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • 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-21 and connector C-13 because the wiring harness is shorted to the power supply.
12	INSPECT CAN LINE BETWEEN CONNECTOR C-21 AND PCM FOR SHORT TO POWER SUPPLY • Measure the voltage at PCM terminals 2S and 2T. • Is the voltage between 1.5—3.5 V?	Yes	Go to the next step.
No	Go to Step 16.
13	INSPECT CAN LINE BETWEEN CONNECTOR C-21 AND CONNECTORS C-71, C-72 FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the connectors C-71, C-72. • Connect the connector C-21. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • 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-21 and connectors C-71, C-72 because the wiring harness is shorted to the power supply.
14	INSPECT CAN LINE BETWEEN SAS CONTROL MODULE AND CONNECTORS C-71, C-72 FOR SHORT TO POWER SUPPLY • Measure the voltage at PCM terminals 2S and 2T. • 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-71, C-72 and connector C-21 because the wiring harness is shorted to the power supply.
15	INSPECT SAS CONTROL MODULE FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the SAS control module connector. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Inspect for continuity between SAS control module terminals 3A and 3D (wiring harness side). • Is the voltage 0 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 [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
No	Repair or replace the wiring harness between the SAS control module and connectors C-71, C-72 because the wiring harness is shorted to the power supply.
16	INSPECT CAN LINE BETWEEN CONNECTOR C-07 AND CONNECTOR C-21 FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Connect the connector C-21. • Disconnect the connector C-07. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • 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-21 because the wiring harness is shorted to the power supply.
17	INSPECT CAN LINE BETWEEN ELECTRONICALLY CONTROLLED BRAKE UNIT AND CONNECTOR C-07, CONNECTOR C-34 FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the connector C-34. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at electronically controlled brake unit terminals 1AM and 1AO. • Is the voltage between 1.5—3.5 V?	Yes	Go to Step 19.
No	Go to the next step.
18	INSPECT ELECTRONICALLY CONTROLLED BRAKE UNIT FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the electronically controlled brake unit connector. • Connect the connector C-07, connector C-34. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • Is the voltage between 1.5—3.5 V?	Yes	Replace the electronically controlled brake unit because there is a short to the power supply in the electronically controlled brake unit. (See ELECTRONICALLY CONTROLLED BRAKE UNIT REMOVAL/INSTALLATION.)
No	Repair or replace the wiring harness between the electronically controlled brake unit and connector C-07, connector C-34 because the wiring harness is shorted to the power supply.
19	INSPECT CAN LINE BETWEEN CONNECTOR CONNECTOR C-02 AND CONNECTOR C-34 FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Connect the connector C-34. • Disconnect the connector C-02. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • 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-02 and connector C-34 because the wiring harness is shorted to the power supply.
20	INSPECT CAN LINE BETWEEN CONNECTOR TCM AND CONNECTOR C-02 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 22.
No	Go to the next step.
21	INSPECT TCM FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the TCM connector. • Connect the connector C-02. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • 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 [ET6A-EL, ET6AX-EL].)
No	Repair or replace the wiring harness between the TCM and connector C-02 because the wiring harness is shorted to the power supply.
22	INSPECT CAN LINE BETWEEN CONNECTOR C-44 AND CONNECTOR C-02 FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Connect the connector C-02. • Disconnect the connector C-44. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • 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-44 and connector C-02 because the wiring harness is shorted to the power supply.
23	INSPECT CAN LINE BETWEEN ELECTRONICALLY CONTROLLED BRAKE UNIT AND CONNECTOR C-44 FOR SHORT TO POWER SUPPLY • Measure the voltage at parking lock actuator terminals E and F. • Is the voltage between 1.5—3.5 V?	Yes	Go to Step 25.
No	Go to the next step.
24	INSPECT PARKING LOCK ACTUATOR FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the parking lock actuator connector. • Connect the connector C-44. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • Is the voltage between 1.5—3.5 V?	Yes	Replace the parking lock actuator because there is a short to the power supply in the parking lock actuator. (See PARKING LOCK ACTUATOR REMOVAL/INSTALLATION [ET6A-EL, ET6AX-EL].)
No	Repair or replace the wiring harness between the parking lock actuator and connector C-44 because the wiring harness is shorted to the power supply.
25	INSPECT CAN LINE BETWEEN CONNECTOR C-01 AND CONNECTOR C-44 FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the connector C-44. • Connect the connector C-01. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • 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 connector C-44 because the wiring harness is shorted to the power supply.
26	INSPECT PCM FOR SHORT TO POWER SUPPLY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the PCM connector. • Connect the connector C-01. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off). • Measure the voltage at body control module (BCM) terminals 3X and 3W. • 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 2.0].)
No	Repair or replace the wiring harness between the PCM and connector C-01 because the wiring harness is shorted to the power supply.

Step

Inspection

Action

INSPECT CAN LINE BETWEEN BODY CONTROL MODULE (BCM) AND CONNECTOR C-39 FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the connector C-39.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• Is the voltage between 1.5—3.5 V?

Yes

Go to Step 3.

Go to the next step.

INSPECT BODY CONTROL MODULE (BCM) FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the connector 3 which has body control module (BCM) terminals 3X and 3W.

• Connect the connector C-39.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W (wiring harness side).

• Is the voltage between 1.5—3.5 V?

Yes

Replace the body control module (BCM) because there is a short to the power supply in the body control module (BCM).

(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)

Repair or replace the wiring harness between the connector C-39 and body control module (BCM) because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN EPS CONTROL MODULE AND CONNECTOR C-39 FOR SHORT TO POWER SUPPLY

• Measure the voltage at EPS control module terminals 2C and 2A.

• Is the voltage between 1.5—3.5 V?

Yes

Go to Step 5.

Go to the next step.

INSPECT EPS CONTROL MODULE FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the EPS control module connector.

• Connect the connector C-39.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• 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 INSPECTION.)

Repair or replace the wiring harness between the EPS control module and connector C-39 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN SELECTOR LEVER AND CONNECTOR C-39 FOR SHORT TO POWER SUPPLY

• Measure the voltage at selector lever terminals D and B.

• Is the voltage between 1.5—3.5 V?

Yes

Go to Step 7.

Go to the next step.

INSPECT SELECTOR LEVER FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the selector lever connector.

• Connect the connector C-39.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• Is the voltage between 1.5—3.5 V?

Yes

Replace the selector lever because there is a short to the power supply in the selector lever.

(See SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION.)

Repair or replace the wiring harness between the selector lever and connector C-39 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN CONNECTOR C-39 AND CONNECTOR C-38 FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the connector C-38.

• Connect the connector C-39.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• Is the voltage between 1.5—3.5 V?

Yes

Go to the next step.

Repair or replace the wiring harness between the connector C-38 and connector C-39 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN AUTO LEVELING CONTROL MODULE / ADAPTIVE LED HEADLIGHTS CONTROL MODULE AND CONNECTOR C-38 FOR SHORT TO POWER SUPPLY

• Measure the voltage at auto leveling control module / adaptive LED headlights control module terminals E and H.

• Is the voltage between 1.5—3.5 V?

Yes

Go to Step 10.

Go to the next step.

INSPECT AUTO LEVELING CONTROL MODULE / ADAPTIVE LED HEADLIGHTS CONTROL MODULE FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the auto leveling control module / adaptive LED headlights control module connector.

• Connect the connector C-38.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• Is the voltage between 1.5—3.5 V?

Yes

Replace the auto leveling control module / adaptive LED headlights control module because there is a short to the power supply in the auto leveling control module / adaptive LED headlights control module.

(See AUTO LEVELING CONTROL MODULE REMOVAL/INSTALLATION.)

(See ADAPTIVE LED HEADLIGHTS CONTROL MODULE REMOVAL/INSTALLATION.)

Repair or replace the wiring harness between the auto leveling control module / adaptive LED headlights control module and connector C-38 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN CONNECTOR C-13 AND CONNECTOR C-38 FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the connector C-13.

• Connect the connector C-38.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• Is the voltage between 1.5—3.5 V?

Yes

Go to the next step.

Repair or replace the wiring harness between the connector C-38 and connector C-13 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN CONNECTOR C-21 AND CONNECTOR C-13 FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Connect the connector C-13.

• Disconnect the connector C-21.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• Is the voltage between 1.5—3.5 V?

Yes

Go to the next step.

Repair or replace the wiring harness between the connector C-21 and connector C-13 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN CONNECTOR C-21 AND PCM FOR SHORT TO POWER SUPPLY

• Measure the voltage at PCM terminals 2S and 2T.

• Is the voltage between 1.5—3.5 V?

Yes

Go to the next step.

Go to Step 16.

INSPECT CAN LINE BETWEEN CONNECTOR C-21 AND CONNECTORS C-71, C-72 FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the connectors C-71, C-72.

• Connect the connector C-21.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• Is the voltage between 1.5—3.5 V?

Yes

Go to the next step.

Repair or replace the wiring harness between connector C-21 and connectors C-71, C-72 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN SAS CONTROL MODULE AND CONNECTORS C-71, C-72 FOR SHORT TO POWER SUPPLY

• Measure the voltage at PCM terminals 2S and 2T.

• Is the voltage between 1.5—3.5 V?

Yes

Go to the next step.

Repair or replace the wiring harness between the connectors C-71, C-72 and connector C-21 because the wiring harness is shorted to the power supply.

INSPECT SAS CONTROL MODULE FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the SAS control module connector.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Inspect for continuity between SAS control module terminals 3A and 3D (wiring harness side).

• Is the voltage 0 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 [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)

Repair or replace the wiring harness between the SAS control module and connectors C-71, C-72 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN CONNECTOR C-07 AND CONNECTOR C-21 FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Connect the connector C-21.

• Disconnect the connector C-07.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• Is the voltage between 1.5—3.5 V?

Yes

Go to the next step.

Repair or replace the wiring harness between the connector C-07 and connector C-21 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN ELECTRONICALLY CONTROLLED BRAKE UNIT AND CONNECTOR C-07, CONNECTOR C-34 FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the connector C-34.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at electronically controlled brake unit terminals 1AM and 1AO.

• Is the voltage between 1.5—3.5 V?

Yes

Go to Step 19.

Go to the next step.

INSPECT ELECTRONICALLY CONTROLLED BRAKE UNIT FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the electronically controlled brake unit connector.

• Connect the connector C-07, connector C-34.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• Is the voltage between 1.5—3.5 V?

Yes

Replace the electronically controlled brake unit because there is a short to the power supply in the electronically controlled brake unit.

(See ELECTRONICALLY CONTROLLED BRAKE UNIT REMOVAL/INSTALLATION.)

Repair or replace the wiring harness between the electronically controlled brake unit and connector C-07, connector C-34 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN CONNECTOR CONNECTOR C-02 AND CONNECTOR C-34 FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Connect the connector C-34.

• Disconnect the connector C-02.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• Is the voltage between 1.5—3.5 V?

Yes

Go to the next step.

Repair or replace the wiring harness between the connector C-02 and connector C-34 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN CONNECTOR TCM AND CONNECTOR C-02 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 22.

Go to the next step.

INSPECT TCM FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the TCM connector.

• Connect the connector C-02.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• 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 [ET6A-EL, ET6AX-EL].)

Repair or replace the wiring harness between the TCM and connector C-02 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN CONNECTOR C-44 AND CONNECTOR C-02 FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Connect the connector C-02.

• Disconnect the connector C-44.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• Is the voltage between 1.5—3.5 V?

Yes

Go to the next step.

Repair or replace the wiring harness between the connector C-44 and connector C-02 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN ELECTRONICALLY CONTROLLED BRAKE UNIT AND CONNECTOR C-44 FOR SHORT TO POWER SUPPLY

• Measure the voltage at parking lock actuator terminals E and F.

• Is the voltage between 1.5—3.5 V?

Yes

Go to Step 25.

Go to the next step.

INSPECT PARKING LOCK ACTUATOR FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the parking lock actuator connector.

• Connect the connector C-44.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• Is the voltage between 1.5—3.5 V?

Yes

Replace the parking lock actuator because there is a short to the power supply in the parking lock actuator.

(See PARKING LOCK ACTUATOR REMOVAL/INSTALLATION [ET6A-EL, ET6AX-EL].)

Repair or replace the wiring harness between the parking lock actuator and connector C-44 because the wiring harness is shorted to the power supply.

INSPECT CAN LINE BETWEEN CONNECTOR C-01 AND CONNECTOR C-44 FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the connector C-44.

• Connect the connector C-01.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• Is the voltage between 1.5—3.5 V?

Yes

Go to the next step.

Repair or replace the wiring harness between the connector C-01 and connector C-44 because the wiring harness is shorted to the power supply.

INSPECT PCM FOR SHORT TO POWER SUPPLY

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Disconnect the PCM connector.

• Connect the connector C-01.

• Connect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off).

• Measure the voltage at body control module (BCM) terminals 3X and 3W.

• 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 2.0].)

Repair or replace the wiring harness between the PCM and connector C-01 because the wiring harness is shorted to the power supply.