DETERMINING SHORT BETWEEN CIRCUITS LOCATION (CAN-BUS No.3) [(US)]
DETERMINING SHORT BETWEEN CIRCUITS LOCATION (CAN-BUS No.3) [(US)]
SM2566454
id1002x1002800
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Caution
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• Perform the following malfunction diagnosis only when it is diagnosed with a short to ground by CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(US)].)
System Wiring Diagram
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Determination Procedure
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Caution
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• 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 cable before performing any work that requires handling of connectors.
Step |
Inspection |
Action |
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1
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INSPECT BODY CONTROL MODULE (BCM) FOR SHORT BETWEEN CIRCUITS
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
• Disconnect the connector 2 which has body control module (BCM) terminals 2L and 2J.
• Connect the negative battery cable. (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 (wiring harness side).
• Is the voltage at body control module (BCM) terminals 2L and 2J (wiring harness side) the same?
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Yes
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Go to the next step.
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No
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Replace the body control module (BCM) because there is a short between circuits in the body control module (BCM).
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2
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INSPECT CAN LINE BETWEEN CONNECTOR C-32 AND BODY CONTROL MODULE (BCM) FOR SHORT BETWEEN CIRCUITS
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
• Disconnect the connector C-32.
• Connect the connector 2 which has body control module (BCM) terminals 2L and 2J.
• Connect the negative battery cable. (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?
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Yes
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Repair or replace the wiring harness between the body control module (BCM) and connector C-32 because the wiring harness is shorted between circuits.
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No
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Go to the next step.
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3
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INSPECT CAN LINE BETWEEN FRONT COMBINATION LIGHT (LH) AND CONNECTOR C-32 FOR SHORT BETWEEN CIRCUITS
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
• Inspect for continuity between front combination light (LH) terminals E and D.
• Is there continuity?
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Yes
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Go to the next step.
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No
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Go to Step 5.
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4
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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?
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Yes
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Repair or replace the wiring harness between the front combination light (LH) and connector C-32 because the wiring harness is shorted between circuits.
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No
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Replace the front combination light (LH) because there is a short between circuits in the front combination light (LH).
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5
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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 cable. (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?
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Yes
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Repair or replace the wiring harness between connector C-33 and connector C-32 because the wiring harness is shorted between circuits.
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No
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Go to the next step.
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6
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INSPECT CAN LINE BETWEEN FRONT COMBINATION LIGHT (RH) AND CONNECTOR C-33 FOR SHORT BETWEEN CIRCUITS
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
• Inspect for continuity between front combination light (RH) terminals E and D.
• Is there continuity?
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Yes
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Go to the next step.
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No
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Go to Step 8.
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7
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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?
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Yes
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Repair or replace the wiring harness between the front combination light (RH) and connector C-33 because the wiring harness is shorted between circuits.
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No
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Replace the front combination light (RH) because there is a short between circuits in the front combination light (RH).
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8
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INSPECT CAN LINE BETWEEN CONNECTOR C-04 AND CONNECTOR C-33 FOR SHORT BETWEEN CIRCUITS
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
• Disconnect the connector C-04.
• Connect the connector C-33.
• Connect the negative battery cable. (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?
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Yes
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Repair or replace the wiring harness between connector C-04 and connector C-33 because the wiring harness is shorted between circuits.
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No
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Go to the next step.
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9
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INSPECT CAN LINE BETWEEN CLIMATE CONTROL UNIT AND CONNECTOR C-04 FOR SHORT BETWEEN CIRCUITS
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
• Disconnect the climate control unit connector.
• Connect the connector C-04.
• Connect the negative battery cable. (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?
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Yes
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Repair or replace the wiring harness between the climate control unit and connector C-04 because the wiring harness is shorted between circuits.
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No
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Go to the next step.
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10
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INSPECT CAN LINE BETWEEN CLIMATE CONTROL UNIT AND ACTIVE DRIVING DISPLAY FOR SHORT BETWEEN CIRCUITS
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
• Inspect for continuity between active driving display terminals I and G.
• Is there continuity?
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Yes
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Go to the next step.
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No
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Go to Step 12.
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11
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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?
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Yes
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Repair or replace the wiring harness between the active driving display and climate control unit because the wiring harness is shorted between circuits.
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No
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Replace the active driving display because there is a short between circuits in the active driving display.
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12
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INSPECT CLIMATE CONTROL UNIT FOR SHORT BETWEEN CIRCUITS
• Inspect for continuity between climate control unit terminals 1I and 1K.
• Is there continuity?
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Yes
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Replace the climate control unit because there is a short between circuits in the climate control unit.
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No
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Go to the next step.
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13
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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 cable. (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?
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Yes
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Repair or replace the wiring harness between connector C-40 and climate control unit because the wiring harness is shorted between circuits.
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No
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Go to the next step.
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14
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INSPECT CAN LINE BETWEEN STEERING ANGLE SENSOR AND CONNECTOR C-40 FOR SHORT BETWEEN CIRCUITS
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
• Inspect for continuity between steering angle sensor terminals B and D.
• Is there continuity?
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Yes
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Go to the next step.
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No
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Go to Step 16.
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15
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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?
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Yes
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Repair or replace the wiring harness between the steering angle sensor and connector C-40 because the wiring harness is shorted between circuits.
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No
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Replace the steering angle sensor because there is a short between circuits in the steering angle sensor.
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16
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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?
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Yes
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Go to the next step.
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No
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Go to Step 18.
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17
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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?
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Yes
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Repair or replace the wiring harness between the instrument cluster and connector C-40 because the wiring harness is shorted between circuits.
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No
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Replace the instrument cluster because there is a short between circuits in the instrument cluster.
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18
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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 cable. (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?
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Yes
|
Repair or replace the wiring harness between connector C-13 and connector C-40 because the wiring harness is shorted between circuits.
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No
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Go to the next step.
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19
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INSPECT CAN LINE BETWEEN CONNECTOR C-48 AND CONNECTOR C-13 FOR SHORT BETWEEN CIRCUITS
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
• Disconnect the connector C-48.
• Connect the connector C-13.
• Connect the negative battery cable. (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?
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Yes
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Repair or replace the wiring harness between connector C-48 and connector C-13 because the wiring harness is shorted between circuits.
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No
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Go to the next step.
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20
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INSPECT CAN LINE BETWEEN DOOR-ELECTRICAL SUPPLY UNIT (PASSENGER’S SIDE) AND CONNECTOR C-48 FOR SHORT BETWEEN CIRCUITS
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
• Inspect for continuity between door-electrical supply unit (passenger’s side) terminals 1A and 1B.
• Is there continuity?
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Yes
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Go to the next step.
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No
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Go to Step 23.
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21
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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?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness between connector C-48 and connector C-23 because the wiring harness is shorted between circuits.
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22
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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?
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Yes
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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.
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No
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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).
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23
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INSPECT JB No.2 FOR SHORT BETWEEN CIRCUITS
• Disconnect the connector C-49.
• Connect the connector C-48.
• Connect the negative battery cable. (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?
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Yes
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Replace the JB No.2 because there is a short between circuits in the JB No.2.
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No
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Go to the next step.
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24
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INSPECT CAN LINE BETWEEN LF CONTROL UNIT AND CONNECTOR C-49 FOR SHORT BETWEEN CIRCUITS
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
• Inspect for continuity between LF control unit terminals M and P.
• Is there continuity?
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Yes
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Go to the next step.
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No
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Go to Step 26.
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25
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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?
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Yes
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Repair or replace the wiring harness between the LF control unit and connector C-49 because the wiring harness is shorted between circuits.
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No
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Replace the LF control unit because there is a short between circuits in the LF control unit.
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26
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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 cable. (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?
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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.
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No
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Go to the next step.
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27
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INSPECT CAN LINE BETWEEN SHIFT PANEL (INDICATOR) AND DASH-ELECTRICAL SUPPLY UNIT FOR SHORT BETWEEN CIRCUITS
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
• Inspect for continuity between shift panel (indicator) terminals E and F.
• Is there continuity?
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Yes
|
Go to the next step.
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No
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Go to Step 29.
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28
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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?
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Yes
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Repair or replace the wiring harness between the shift panel (indicator) and dash-electrical supply unit because the wiring harness is shorted between circuits.
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No
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Replace the shift panel (indicator) because there is a short between circuits in the shift panel (indicator).
(See INDICATOR INSPECTION.)
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29
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INSPECT DASH-ELECTRICAL SUPPLY UNIT FOR SHORT BETWEEN CIRCUITS
• Inspect for continuity between dash-electrical supply unit terminals 1L and 1J.
• Is there continuity?
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Yes
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Replace the dash-electrical supply unit because there is a short between circuits in the dash-electrical supply unit.
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No
|
Go to the next step.
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30
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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 cable. (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.
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31
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INSPECT JB No.1 FOR SHORT BETWEEN CIRCUITS
• Disconnect the connector C-47.
• Connect the connector C-46.
• Connect the negative battery cable. (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.
|
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32
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INSPECT CAN LINE BETWEEN DOOR-ELECTRICAL SUPPLY UNIT (DRIVER’S SIDE) AND CONNECTOR C-47 FOR SHORT BETWEEN CIRCUITS
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
• Inspect for continuity between door-electrical supply unit (driver’s side) terminals 1A and 1B.
• Is there continuity?
|
Yes
|
Go to the next step.
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No
|
Go to Step 35.
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33
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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
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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).
|
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35
|
INSPECT ESU FOR SHORT BETWEEN CIRCUITS
• Disconnect the ESU connector.
• Connect the connector C-47.
• Connect the negative battery cable. (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.
|