DETERMINING SHORT TO GROUND LOCATION (CAN-BUS No.4) [(US)]
DETERMINING SHORT TO GROUND LOCATION (CAN-BUS No.4) [(US)]
SM2566456
id1002x1003000
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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
am3zzw00027507
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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.
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Step |
Inspection |
Action |
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1
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INSPECT FOR SHORT TO GROUND BETWEEN BODY CONTROL MODULE (BCM) AND CONNECTOR C-08
• Switch the ignition off.
• Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)])
• Disconnect the connector C-08.
• Inspect for continuity at the following terminals:
• 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 3.
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2
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INSPECT CAN LINE IN BODY CONTROL MODULE (BCM) FOR SHORT TO GROUND
• Disconnect the connector 2 which has body control module (BCM) terminals 2D and 2B.
• Inspect for continuity at the following terminals:
• Is there continuity?
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Yes
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Repair or replace the wiring harness between the connector C-08 and body control module (BCM) because the wiring harness is shorted to ground.
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No
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Replace the body control module (BCM) because there is a short to ground in the body control module (BCM).
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3
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INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-08 AND CONNECTOR C-59/C-69
• Disconnect the connector C-59.(4SD)
• Disconnect the connector C-69.(5HB)
• Connect the connector C-08.
• Inspect for continuity at the following terminals:
• Is there continuity?
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Yes
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Repair or replace the wiring harness between the connector C-08 and connector C-59/C-69 because the wiring harness is shorted to ground.
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No
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Go to the next step.
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4
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INSPECT FOR SHORT TO GROUND BETWEEN ELECTRICAL SUPPLY UNIT (ESU) AND CONNECTOR C-59/C-69
• Inspect for continuity at the following terminals:
• 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 6. (with parking sensor system)
Go to Step 11. (5HB (without parking sensor system))
Go to Step 14. (4SD (without parking sensor system))
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5
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INSPECT CAN LINE IN ELECTRICAL SUPPLY UNIT (ESU) FOR SHORT TO GROUND
• Disconnect the electrical supply unit (ESU) connector.
• Inspect for continuity at the following terminals:
• Is there continuity?
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Yes
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Repair or replace the wiring harness between the electrical supply unit (ESU) and connector C-59/C-69 because the wiring harness is shorted to ground.
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No
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Replace the electrical supply unit (ESU) because there is a short to ground in the electrical supply unit (ESU).
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6
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INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-58 AND CONNECTOR C-59/C-69
• Disconnect the connector C-58.
• Connect the connector C-59.(4SD)
• Connect the connector C-69.(5HB)
• Inspect for continuity at the following terminals:
• Is there continuity?
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Yes
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Repair or replace the wiring harness between the connector C-58 and connector C-59/C-69 because the wiring harness is shorted to ground.
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No
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Go to the next step.
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7
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INSPECT FOR SHORT TO GROUND BETWEEN PARKING ASSIST UNIT (ULTRASONIC) AND CONNECTOR C-58
• Inspect for continuity at the following terminals:
• 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 9.
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8
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INSPECT CAN LINE IN PARKING ASSIST UNIT (ULTRASONIC) FOR SHORT TO GROUND
• Disconnect the parking assist unit (ultrasonic) connector.
• Inspect for continuity at the following terminals:
• Is there continuity?
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Yes
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Repair or replace the wiring harness between the parking assist unit (ultrasonic) and connector C-58 because the wiring harness is shorted to ground.
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No
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Replace the parking assist unit (ultrasonic) because there is a short to ground in the parking assist unit (ultrasonic).
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9
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INSPECT FOR SHORT TO GROUND BETWEEN REAR SIDE RADAR SENSOR (RH) AND CONNECTOR C-60/C-70
• Disconnect the connector C-60.(4SD)
• Disconnect the connector C-70.(5HB)
• Inspect for continuity at the following terminals:
• 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-60/C-70 and connector C-58 because the wiring harness is shorted to ground.
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10
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INSPECT CAN LINE IN REAR SIDE RADAR SENSOR (RH) FOR SHORT TO GROUND
• Disconnect the rear side radar sensor (RH) connector.
• Inspect for continuity at the following terminals:
• Is there continuity?
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Yes
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Repair or replace the wiring harness between the rear side radar sensor (RH) and connector C-60/C-70 because the wiring harness is shorted to ground.
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No
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Replace the rear side radar sensor (RH) because there is a short to ground in the rear side radar sensor (RH).
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11
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INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-68 AND CONNECTOR C-69
• Disconnect the connector C-68.
• Connect the connector C-69.
• Inspect for continuity at the following terminals:
• Is there continuity?
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Yes
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Repair or replace the wiring harness between the connector C-68 and connector C-69 because the wiring harness is shorted to ground.
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No
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Go to the next step.
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12
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INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-70 AND CONNECTOR C-68
• Disconnect the connector C-70.
• Connect the connector C-68
• Inspect for continuity at the following terminals:
• Is there continuity?
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Yes
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Repair or replace the wiring harness between the connector C-70 and connector C-68 because the wiring harness is shorted to ground.
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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 IN REAR SIDE RADAR SENSOR (RH) FOR SHORT TO GROUND
• Disconnect the rear side radar sensor (RH) connector.
• Inspect for continuity at the following terminals:
• Is there continuity?
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Yes
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Repair or replace the wiring harness between the rear side radar sensor (RH) and connector C-70 because the wiring harness is shorted to ground.
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No
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Replace the rear side radar sensor (RH) because there is a short to ground in the rear side radar sensor (RH).
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14
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INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-66 AND CONNECTOR C-59
• Disconnect the connector C-66.
• Connect the connector C-59.
• Inspect for continuity at the following terminals:
• Is there continuity?
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Yes
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Repair or replace the wiring harness between the connector C-66 and connector C-59 because the wiring harness is shorted to ground.
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No
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Go to the next step.
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15
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INSPECT CAN LINE IN JB No.3 FOR SHORT TO GROUND
• Disconnect the connector C-67.
• Connect the connector C-66.
• Inspect for continuity at the following terminals:
• Is there continuity?
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Yes
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Replace the JB No.3 because there is a short to ground in the JB No.3.
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No
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Go to the next step.
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16
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INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-60 AND CONNECTOR C-67
• Disconnect the connector C-60.
• Connect the connector C-67
• Inspect for continuity at the following terminals:
• Is there continuity?
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Yes
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Repair or replace the wiring harness between the connector C-60 and connector C-67 because the wiring harness is shorted to ground.
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No
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Go to the next step.
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17
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INSPECT CAN LINE IN REAR SIDE RADAR SENSOR (RH) FOR SHORT TO GROUND
• Disconnect the rear side radar sensor (RH) connector.
• Inspect for continuity at the following terminals:
• Is there continuity?
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Yes
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Repair or replace the wiring harness between the rear side radar sensor (RH) and connector C-60 because the wiring harness is shorted to ground.
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No
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Replace the rear side radar sensor (RH) because there is a short to ground in the rear side radar sensor (RH).
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