Pinpoint Test I: An Exterior Mirror BLIS(R) (Blind Spot Information System) / CTA (Cross Traffic Alert) Led Is Constantly On
Blind Spot Monitoring
Pinpoint Test I: An Exterior Mirror BLIS(R) (Blind Spot Information System) /CTA (Cross Traffic Alert) Led Is Constantly On
Refer to Wiring Diagram Set 136, Vehicle Emergency Messaging System for schematic and connector information Electrical Diagrams.
Normal Operation
On each ignition cycle, the Side Obstacle Detection Control Module - Right (SOD-R) and Side Obstacle Detection Control Module - Left (SOD-L) run a self diagnostic check during which the exterior mirror Blind Spot Information System (BLIS(R)) /Cross Traffic Alert (CTA) LEDs illuminate for 3 seconds then turn off indicating the system is operational.
For the BLIS(R) (Blind Spot Information System), the exterior mirror BLIS(R) (Blind Spot Information System) /CTA (Cross Traffic Alert) LED is at 95 percent illumination to be seen clearly during the day and is dimmed down to 10 percent at night. For the CTA (Cross Traffic Alert) system, the exterior mirror BLIS(R) (Blind Spot Information System) /CTA (Cross Traffic Alert) LED is always at 85 percent illumination.
- DTC B11D6:15 (Driver Display Alert LED: Circuit Short To Battery or Open)- sets when the SOD-R (Side Obstacle Detection Control Module - Right) or SOD-L (Side Obstacle Detection Control Module - Left) detect a short to battery voltage on the exterior mirror BLIS(R) (Blind Spot Information System) /CTA (Cross Traffic Alert) LED supply circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- SOD-R (Side Obstacle Detection Control Module - Right)
- SOD-L (Side Obstacle Detection Control Module - Left)
- Exterior mirror BLIS(R) (Blind Spot Information System) /CTA (Cross Traffic Alert) LED
PINPOINT TEST I : AN EXTERIOR MIRROR BLIS(R) (Blind Spot Information System) /CTA (Cross Traffic Alert) LED IS CONSTANTLY ON
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE: Failure to disconnect the battery when instructed results in false resistance readings.
I1 VERIFY THE CUSTOMER'S CONCERN
- Carry out the diagnostic system check.
- Start the engine.
- Observe the left and right exterior mirror BLIS(R) (Blind Spot Information System) /CTA (Cross Traffic Alert) LEDs.
Do the left and right exterior mirror BLIS(R) (Blind Spot Information System) /CTA (Cross Traffic Alert) LEDs illuminate and turn off after 3 seconds?
Yes
The system is operating correctly at this time. The concern may have been caused by an intermittent problem. TEST the system for normal operation.
No
GO to I2.
I2 CHECK THE DTCs FROM SOD-L (Side Obstacle Detection Control Module - Left) AND SOD-R (Side Obstacle Detection Control Module - Right) SELF-TESTS
- Check the SOD-L (Side Obstacle Detection Control Module - Left) and SOD-R (Side Obstacle Detection Control Module - Right) DTCs from the self-tests.
Are any SOD-L (Side Obstacle Detection Control Module - Left) and SOD-R (Side Obstacle Detection Control Module - Right) DTCs recorded?
Yes
For DTC B11D6:15, GO to I3.
For all other DTCs, REFER to DTC Charts Blind Spot Monitoring.
No
GO to I3.
I3 CHECK THE EXTERIOR MIRROR BLIS(R) (Blind Spot Information System) /CTA (Cross Traffic Alert) LED SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: SOD-L (Side Obstacle Detection Control Module - Left) C4369 (LH concern).
- Disconnect: SOD-R (Side Obstacle Detection Control Module - Right) C4370 (RH concern).
- Ignition ON.
- For a LH concern, measure the voltage between the SOD-L (Side Obstacle Detection Control Module - Left) C4369-6, circuit CRB04 (YE/GN), harness side and ground.
- For a RH concern, measure the voltage between the SOD-R (Side Obstacle Detection Control Module - Right) C4370-1, circuit CRB02 (BU/BN), harness side and ground.
Is any voltage present?
Yes
GO to I4.
No
For a LH concern, GO to I5. For a RH concern, GO to I6.
I4 CHECK THE EXTERIOR MIRROR FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: Left Exterior Mirror C516 (LH concern).
- Disconnect: Right Exterior Mirror C622 (RH concern).
- Ignition ON.
- For a LH concern, measure the voltage between the SOD-L (Side Obstacle Detection Control Module - Left) C4369-6, circuit CRB04 (YE/GN), harness side and ground.
- For a RH concern, measure the voltage between the SOD-R (Side Obstacle Detection Control Module - Right) C4370-1, circuit CRB02 (BU/BN), harness side and ground.
Is any voltage present?
Yes
REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.
No
INSTALL a new exterior mirror for the one in question. CLEAR the DTCs. TEST the system for normal operation.
I5 CHECK FOR CORRECT SOD-L (Side Obstacle Detection Control Module - Left) OPERATION
- Connect all disconnected connectors.
- Disconnect the SOD-L (Side Obstacle Detection Control Module - Left) connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the SOD-L (Side Obstacle Detection Control Module - Left) connector and make sure it seats correctly.
- Operate the system and verify the concern is still present.
Is the concern still present?
Yes
INSTALL a new SOD-L (Side Obstacle Detection Control Module - Left). REFER to Side Obstacle Detection (SOD) Module . TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
I6 CHECK FOR CORRECT SOD-R (Side Obstacle Detection Control Module - Right) OPERATION
- Connect all disconnected connectors.
- Disconnect the SOD-R (Side Obstacle Detection Control Module - Right) connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the SOD-R (Side Obstacle Detection Control Module - Right) connector and make sure it seats correctly.
- Operate the system and verify the concern is still present.
Is the concern still present?
Yes
INSTALL a new SOD-R (Side Obstacle Detection Control Module - Right). REFER to Side Obstacle Detection (SOD) Module . TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.