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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 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.
DETERMINING SHORT BETWEEN CIRCUITS LOCATION (CAN-BUS No. 3) (US) DIAGNOSTIC PROCEDURE

Step Inspection Action
1 INSPECT BODY CONTROL MODULE (BCM) FOR SHORT BETWEEN CIRCUITS
 Yes Go to the next step.
No Replace the body control module (BCM) because there is a short between circuits in the body control module (BCM).
(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION .)
2 INSPECT CAN LINE BETWEEN CONNECTOR C-32 AND BODY CONTROL MODULE (BCM) FOR SHORT BETWEEN CIRCUITS
 Yes Repair or replace the wiring harness between the body control module (BCM) and connector C-32 because the wiring harness is shorted between circuits.
No Go to the next step.
3 INSPECT CAN LINE BETWEEN FRONT COMBINATION LIGHT (LH) AND CONNECTOR C-32 FOR SHORT BETWEEN CIRCUITS
 Yes Go to the next step.
No Go to Step 5.
4 INSPECT FRONT COMBINATION LIGHT (LH) FOR SHORT BETWEEN CIRCUITS
  • Disconnect the front combination light (LH) connector.
  • Inspect for continuity between front combination light (LH) terminals E and D (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the front combination light (LH) and connector C-32 because the wiring harness is shorted between circuits.
No Replace the front combination light (LH) because there is a short between circuits in the front combination light (LH).
(See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION .)
5 INSPECT CAN LINE BETWEEN CONNECTOR C-33 AND CONNECTOR C-32 FOR SHORT BETWEEN CIRCUITS
  • Disconnect the connector C-33.
  • Connect the connector C-32.
  • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  • Switch the ignition ON (engine off).
  • Measure the voltage at body control module (BCM) terminals 2L and 2J.
  • Is the voltage at body control module (BCM) terminals 2L and 2J the same?
 Yes Repair or replace the wiring harness between connector C-33 and connector C-32 because the wiring harness is shorted between circuits.
No Go to the next step.
6 INSPECT CAN LINE BETWEEN FRONT COMBINATION LIGHT (RH) AND CONNECTOR C-33 FOR SHORT BETWEEN CIRCUITS
 Yes Go to the next step.
No Go to Step 8.
7 INSPECT FRONT COMBINATION LIGHT (RH) FOR SHORT BETWEEN CIRCUITS
  • Disconnect the front combination light (RH) connector.
  • Inspect for continuity between front combination light (RH) terminals E and D (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the front combination light (RH) and connector C-33 because the wiring harness is shorted between circuits.
No Replace the front combination light (RH) because there is a short between circuits in the front combination light (RH).
(See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION .)
8 INSPECT CAN LINE BETWEEN CONNECTOR C-04 AND CONNECTOR C-33 FOR SHORT BETWEEN CIRCUITS
 Yes Repair or replace the wiring harness between connector C-04 and connector C-33 because the wiring harness is shorted between circuits.
No Go to the next step.
9 INSPECT CAN LINE BETWEEN CLIMATE CONTROL UNIT AND CONNECTOR C-04 FOR SHORT BETWEEN CIRCUITS
 Yes Repair or replace the wiring harness between the climate control unit and connector C-04 because the wiring harness is shorted between circuits.
No Go to the next step.
10 INSPECT CAN LINE BETWEEN CLIMATE CONTROL UNIT AND ACTIVE DRIVING DISPLAY FOR SHORT BETWEEN CIRCUITS
 Yes Go to the next step.
No Go to Step 12.
11 INSPECT ACTIVE DRIVING DISPLAY FOR SHORT BETWEEN CIRCUITS
  • Disconnect the active driving display connector.
  • Inspect for continuity between active driving display terminals I and G (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the active driving display and climate control unit because the wiring harness is shorted between circuits.
No Replace the active driving display because there is a short between circuits in the active driving display.
(See ACTIVE DRIVING DISPLAY REMOVAL/INSTALLATION (US) .)
12 INSPECT CLIMATE CONTROL UNIT FOR SHORT BETWEEN CIRCUITS
  • Inspect for continuity between climate control unit terminals 1I and 1K.
  • Is there continuity?
 Yes Replace the climate control unit because there is a short between circuits in the climate control unit.
(See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER (US)] .)
(See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER (US)] .)
No Go to the next step.
13 INSPECT CAN LINE BETWEEN CONNECTOR C-40 AND CLIMATE CONTROL UNIT FOR SHORT BETWEEN CIRCUITS
  • Disconnect the connector C-40.
  • Connect the climate control unit connector.
  • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  • Switch the ignition ON (engine off).
  • Measure the voltage at body control module (BCM) terminals 2L and 2J.
  • Is the voltage at body control module (BCM) terminals 2L and 2J the same?
 Yes Repair or replace the wiring harness between connector C-40 and climate control unit because the wiring harness is shorted between circuits.
No Go to the next step.
14 INSPECT CAN LINE BETWEEN STEERING ANGLE SENSOR AND CONNECTOR C-40 FOR SHORT BETWEEN CIRCUITS
 Yes Go to the next step.
No Go to Step 16.
15 INSPECT STEERING ANGLE SENSOR FOR SHORT BETWEEN CIRCUITS
  • Disconnect the steering angle sensor connector.
  • Inspect for continuity between steering angle sensor terminals B and D (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the steering angle sensor and connector C-40 because the wiring harness is shorted between circuits.
No Replace the steering angle sensor because there is a short between circuits in the steering angle sensor.
(See STEERING ANGLE SENSOR REMOVAL/INSTALLATION .)
16 INSPECT CAN LINE BETWEEN INSTRUMENT CLUSTER AND CONNECTOR C-40 FOR SHORT BETWEEN CIRCUITS
  • Inspect for continuity between instrument cluster terminals AK and AM.
  • Is there continuity?
 Yes Go to the next step.
No Go to Step 18.
17 INSPECT INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS
  • Disconnect the instrument cluster connector.
  • Inspect for continuity between instrument cluster terminals AK and AM (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the instrument cluster and connector C-40 because the wiring harness is shorted between circuits.
No Replace the instrument cluster because there is a short between circuits in the instrument cluster.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
18 INSPECT CAN LINE BETWEEN CONNECTOR C-13 AND CONNECTOR C-40 FOR SHORT BETWEEN CIRCUITS
  • Disconnect the connector C-13.
  • Connect the connector C-40.
  • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  • Switch the ignition ON (engine off).
  • Measure the voltage at body control module (BCM) terminals 2L and 2J.
  • Is the voltage at body control module (BCM) terminals 2L and 2J the same?
 Yes Repair or replace the wiring harness between connector C-13 and connector C-40 because the wiring harness is shorted between circuits.
No Go to the next step.
19 INSPECT CAN LINE BETWEEN CONNECTOR C-48 AND CONNECTOR C-13 FOR SHORT BETWEEN CIRCUITS
 Yes Repair or replace the wiring harness between connector C-48 and connector C-13 because the wiring harness is shorted between circuits.
No Go to the next step.
20 INSPECT CAN LINE BETWEEN DOOR-ELECTRICAL SUPPLY UNIT (PASSENGER'S SIDE) AND CONNECTOR C-48 FOR SHORT BETWEEN CIRCUITS
 Yes Go to the next step.
No Go to Step 23.
21 INSPECT CAN LINE BETWEEN DOOR-ELECTRICAL SUPPLY UNIT (PASSENGER'S SIDE) AND CONNECTOR C-23 FOR SHORT BETWEEN CIRCUITS
  • Disconnect the connector C-23.
  • Inspect for continuity between door-electrical supply unit (passenger's side) terminals 1A and 1B.
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace the wiring harness between connector C-48 and connector C-23 because the wiring harness is shorted between circuits.
22 INSPECT DOOR-ELECTRICAL SUPPLY UNIT (PASSENGER'S SIDE) FOR SHORT BETWEEN CIRCUITS
  • Disconnect the door-electrical supply unit (passenger's side) connector.
  • Inspect for continuity between door-electrical supply unit (passenger's side) terminals 1A and 1B (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the door-electrical supply unit (passenger's side) and connector C-23 because the wiring harness is shorted between circuits.
No Replace the door-electrical supply unit (passenger's side) because there is a short between circuits in the door-electrical supply unit (passenger's side).
(See DOOR-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION .)
23 INSPECT JB No. 2 FOR SHORT BETWEEN CIRCUITS
  • Disconnect the connector C-49.
  • Connect the connector C-48.
  • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  • Switch the ignition ON (engine off).
  • Measure the voltage at body control module (BCM) terminals 2L and 2J.
  • Is the voltage at body control module (BCM) terminals 2L and 2J the same?
 Yes Replace the JB No. 2 because there is a short between circuits in the JB No. 2.
No Go to the next step.
24 INSPECT CAN LINE BETWEEN LF CONTROL UNIT AND CONNECTOR C-49 FOR SHORT BETWEEN CIRCUITS
 Yes Go to the next step.
No Go to Step 26.
25 INSPECT LF CONTROL UNIT FOR SHORT BETWEEN CIRCUITS
  • Disconnect the LF control unit connector.
  • Inspect for continuity between LF control unit terminals M and P (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the LF control unit and connector C-49 because the wiring harness is shorted between circuits.
No Replace the LF control unit because there
26 INSPECT CAN LINE BETWEEN DASH-ELECTRICAL SUPPLY UNIT AND CONNECTOR C-49 FOR SHORT BETWEEN CIRCUITS
  • Disconnect the dash-electrical supply unit connector.
  • Connect the connector C-49.
  • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  • Switch the ignition ON (engine off).
  • Measure the voltage at body control module (BCM) terminals 2L and 2J.
  • Is the voltage at body control module (BCM) terminals 2L and 2J the same?
 Yes Repair or replace the wiring harness between the dash-electrical supply unit and connector C-49 because the wiring harness is shorted between circuits.
No Go to the next step.
27 INSPECT CAN LINE BETWEEN SHIFT PANEL (INDICATOR) AND DASH-ELECTRICAL SUPPLY UNIT FOR SHORT BETWEEN CIRCUITS
 Yes Go to the next step.
No Go to Step 29.
28 INSPECT SHIFT PANEL (INDICATOR) FOR SHORT BETWEEN CIRCUITS
  • Disconnect the shift panel (indicator) connector.
  • Inspect for continuity between shift panel (indicator) terminals E and F (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the shift panel (indicator) and dash-electrical supply unit because the wiring harness is shorted between circuits.
No Replace the shift panel (indicator) because there is a short between circuits in the shift panel (indicator).
(See INDICATOR REMOVAL/INSTALLATION .) unit.
(See LF CONTROL UNIT REMOVAL/INSTALLATION .)
29 INSPECT DASH-ELECTRICAL SUPPLY UNIT FOR SHORT BETWEEN CIRCUITS
  • Inspect for continuity between dash-electrical supply unit terminals 1L and 1J.
  • Is there continuity?
 Yes Replace the dash-electrical supply unit because there is a short between circuits in the dash-electrical supply unit.
(See DASH-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER (US)] .)
(See DASH-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER (US)] .)
No Go to the next step.
30 INSPECT CAN LINE BETWEEN DASH-ELECTRICAL SUPPLY UNIT AND CONNECTOR C-46 FOR SHORT BETWEEN CIRCUITS
  • Connect the dash-electrical supply unit connector.
  • Disconnect the connector C-46.
  • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  • Switch the ignition ON (engine off).
  • Measure the voltage at body control module (BCM) terminals 2L and 2J.
  • Is the voltage at body control module (BCM) terminals 2L and 2J the same?
 Yes Repair or replace the wiring harness between the dash-electrical supply unit and connector C-46 because the wiring harness is shorted between circuits.
No Go to the next step.
31 INSPECT JB No. 1 FOR SHORT BETWEEN CIRCUITS
  • Disconnect the connector C-47.
  • Connect the connector C-46.
  • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  • Switch the ignition ON (engine off).
  • Measure the voltage at body control module (BCM) terminals 2L and 2J.
  • Is the voltage at body control module (BCM) terminals 2L and 2J the same?
 Yes Replace the JB No. 1 because there is a short between circuits in the JB No. 1.
No Go to the next step.
32 INSPECT CAN LINE BETWEEN DOOR-ELECTRICAL SUPPLY UNIT (DRIVER'S SIDE) AND CONNECTOR C-47 FOR SHORT BETWEEN CIRCUITS
 Yes Go to the next step.
No Go to Step 35.
33 INSPECT CAN LINE BETWEEN DOOR-ELECTRICAL SUPPLY UNIT (DRIVER'S SIDE) AND CONNECTOR C-22 FOR SHORT BETWEEN CIRCUITS
  • Disconnect the connector C-22.
  • Inspect for continuity between door-electrical supply unit (driver's side) terminals 1A and 1B.
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace the wiring harness between connector C-47 and connector C-22 because the wiring harness is shorted between circuits.
34 INSPECT DOOR-ELECTRICAL SUPPLY UNIT (DRIVER'S SIDE) FOR SHORT BETWEEN CIRCUITS
  • Disconnect the door-electrical supply unit (driver's side) connector.
  • Inspect for continuity between door-electrical supply unit (driver's side) terminals 1A and 1B (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the door-electrical supply unit (driver's side) and connector C-22 because the wiring harness is shorted between circuits.
No Replace the door-electrical supply unit (driver's side) because there is a short between circuits in the door-electrical supply unit (driver's side).
(See DOOR-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION .)
35 INSPECT ESU FOR SHORT BETWEEN CIRCUITS
  • Disconnect the ESU connector.
  • Connect the connector C-47.
  • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  • Switch the ignition ON (engine off).
  • Measure the voltage at body control module (BCM) terminals 2L and 2J.
  • Is the voltage at body control module (BCM) terminals 2L and 2J the same?
 Yes Repair or replace the wiring harness between the ESU and connector C-47 because the wiring harness is shorted between circuits.
No Replace the ESU because there is a short between circuits in the ESU.
(See ELECTRICAL SUPPLY UNIT (ESU) REMOVAL/INSTALLATION .)
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