B128D-17

B128D-17-PASSENGER BLINDSPOT SENSOR - CIRCUIT VOLTAGE ABOVE THRESHOLD





For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

For more information on the operation of the Blind Spot Monitor System, Blind Spot Monitoring System - Operation

- When Monitored:
With the ignition on.

Vehicle speed greater than 9.6 km/h (6 mph).

- Set Condition:
The Blind Spot Module (BSM) detects the Blind Spot Sensor circuit above below threshold.





1. CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)

NOTE: Diagnose and repair any vehicle charging system failures before proceeding with this diagnostic procedure.

1. Turn the ignition on.
2. With the scan tool, read BSM DTCs.

Does the scan tool display this DTC as active?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. CHECK FOR HIGH VEHICLE SYSTEM VOLTAGE




1. Turn the ignition off.
2. Disconnect the Right Rear Blind Spot Sensor harness connector.
3. Turn the ignition on.
4. Using a volt meter, measure the voltage of the (F923) Run Relay Output circuit.

Is the voltage below 16.0 volts?

Yes

- Replace the Right Rear Blind Spot Sensor. Blind Spot Sensor - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Diagnose the vehicle for high system voltage.
- Perform the BODY VERIFICATION TEST. Body Verification Test.