Diagnostic Routine I

Diagnostic Routine I

Diagnostic Overview

An Exterior Mirror LED Is Constantly On With No IPC Message Present

Refer to Wiring Diagram Set 136 for schematic and connector information Electrical Diagrams.

Normal Operation and Fault Conditions

REFER to Exterior Mirror Indication .

DTC Fault Trigger Conditions






Pinpoint Test

1. VERIFY THE CUSTOMER'S CONCERN

1. Carry out the diagnostic system check.

- Start the engine.
- Observe the left and right exterior mirror BLIS(R) / CTA (Cross Traffic Alert) LEDs (Light-emitting Diodes).

Do the left and right exterior mirror BLIS(R) / CTA (Cross Traffic Alert) LEDs (Light-emitting Diodes) illuminate and turn off after 3 seconds?








2. CHECK THE DTCs (Diagnostic Trouble Codes) FROM SOD-L (Side Obstacle Detection Control Module - Left) AND SOD-R (Side Obstacle Detection Control Module - Right) SELF-TESTS

1. Using a scan tool, perform the SOD-L (Side Obstacle Detection Control Module - Left) and SOD-R (Side Obstacle Detection Control Module - Right) DTCs (Diagnostic Trouble Codes) self-tests.

Are any DTCs (Diagnostic Trouble Codes) recorded?








3. CHECK THE EXTERIOR MIRROR BLIS(R) / CTA (Cross Traffic Alert) LED (Light-emitting Diode) SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE

1. Ignition OFF.

2. Disconnect: SOD-L (Side Obstacle Detection Control Module - Left) (LH (Left Hand) concern).

3. Disconnect: SOD-R (Side Obstacle Detection Control Module - Right) (RH (Right Hand) concern).

4. Ignition ON.

5. Measure:
LH (Left Hand)





RH (Right Hand)





Is any voltage present?








4. CHECK THE EXTERIOR MIRROR FOR A SHORT TO VOLTAGE

1. Ignition OFF.

2. Disconnect: Left Exterior Mirror C516 (LH (Left Hand) concern).

3. Disconnect: Right Exterior Mirror C601 (RH (Right Hand) concern).

4. Ignition ON.

5. Measure:
LH (Left Hand)





RH (Right Hand)





Is any voltage present?








5. CHECK FOR CORRECT SOD-L (Side Obstacle Detection Control Module - Left) OPERATION

1. Disconnect and inspect the SOD-L (Side Obstacle Detection Control Module - Left) connector.

2. Repair:

- corrosion (install new connector or terminals- clean module pins)
- damaged pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

3. Reconnect the SOD-L (Side Obstacle Detection Control Module - Left) connector. Make sure it seats and latches correctly.

4. Operate the system and determine if the concern is still present.

Is the concern still present?








6. CHECK FOR CORRECT SOD-R (Side Obstacle Detection Control Module - Right) OPERATION

1. Disconnect and inspect the SOD-R (Side Obstacle Detection Control Module - Right) connector.

2. Repair:

- corrosion (install new connector or terminals- clean module pins)
- damaged pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

3. Reconnect the SOD-R (Side Obstacle Detection Control Module - Right) connector. Make sure it seats and latches correctly.

4. Operate the system and determine if the concern is still present.

Is the concern still present?