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DETERMINING SHORT TO GROUND LOCATION (CAN-BUS No.6) [(US)]

DETERMINING SHORT TO GROUND LOCATION (CAN-BUS No.6) [(US)]

SM2566464


id1002x1003800

Caution
• 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

am3zzw00027509



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.

Step

Inspection

Action

1
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-10.
• Inspect for continuity at the following terminals:
― Between body control module (BCM) terminal 2A and body ground
― Between body control module (BCM) terminal 2C and body ground
• Is there continuity?
Yes
Go to the next step.
No
Go to Step 3.
2
INSPECT CAN LINE IN BODY CONTROL MODULE (BCM) FOR SHORT TO GROUND
• Disconnect the connector 2 which has body control module (BCM) terminals 2A and 2C.
• Inspect for continuity at the following terminals:
― Between body control module (BCM) terminal 2A (wiring harness side) and body ground
― Between body control module (BCM) terminal 2C (wiring harness side) and body ground
• Is there continuity?
Yes
Repair or replace the wiring harness between the connector C-10 and body control module (BCM) because the wiring harness is shorted to ground.
No
Replace the body control module (BCM) because there is a short to ground in the body control module (BCM).
3
INSPECT FOR SHORT TO GROUND BETWEEN REAR SIDE RADAR SENSOR (LH) AND CONNECTOR C-10
• Inspect for continuity at the following terminals:
― Between rear side radar sensor (LH) terminal C and body ground
― Between rear side radar sensor (LH) terminal D and body ground
• Is there continuity?
Yes
Go to the next step.
No
Go to Step 5.
4
INSPECT CAN LINE IN REAR SIDE RADAR SENSOR (LH) FOR SHORT TO GROUND
• Disconnect the rear side radar sensor (LH) connector.
• Inspect for continuity at the following terminals:
― Between rear side radar sensor (LH) terminal C (wiring harness side) and body ground
― Between rear side radar sensor (LH) terminal D (wiring harness side) and body ground
• Is there continuity?
Yes
Repair or replace the wiring harness between the rear side radar sensor (LH) and connector C-10 because the wiring harness is shorted to ground.
No
Replace the rear side radar sensor (LH) because there is a short to ground in the rear side radar sensor (LH).
5
INSPECT FOR SHORT TO GROUND BETWEEN FRONT RADAR SENSOR AND CONNECTOR C-10
• Inspect for continuity at the following terminals:
― Between front radar sensor terminal E and body ground
― Between front radar sensor terminal C and body ground
• Is there continuity?
Yes
Go to the next step.
No
Go to Step 7.
6
INSPECT CAN LINE IN FRONT RADAR SENSOR FOR SHORT TO GROUND
• Disconnect the front radar sensor connector.
• Inspect for continuity at the following terminals:
― Between front radar sensor terminal E (wiring harness side) and body ground
― Between front radar sensor terminal C (wiring harness side) and body ground
• Is there continuity?
Yes
Repair or replace the wiring harness between the front radar sensor and connector C-10 because the wiring harness is shorted to ground.
No
Replace the front radar sensor because there is a short to ground in the front radar sensor.
7
INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-10 AND CONNECTOR C-06
• Disconnect the connector C-06.
• Connect the connector C-10.
• Inspect for continuity at the following terminals:
― Between body control module (BCM) terminal 2A and body ground
― Between body control module (BCM) terminal 2C and body ground
• Is there continuity?
Yes
Repair or replace the wiring harness between the connector C-10 and connector C-06 because the wiring harness is shorted to ground.
No
Go to the next step.
8
INSPECT CAN LINE IN BODY CONTROL MODULE (BCM) FOR SHORT TO GROUND
• Disconnect the body control module (BCM).
• Inspect for continuity at the following terminals:
― Between body control module (BCM) terminal 4N (wiring harness side) and body ground
― Between body control module (BCM) terminal 4M (wiring harness side) and body ground
• Is there continuity?
Yes
Repair or replace the wiring harness between the body control module (BCM) and connector C-06 because the wiring harness is shorted to ground.
No
Replace the body control module (BCM) because there is a short to ground in the body control module (BCM).