Foreword [Blind Spot Monitoring (BSM) Control Module]

• If there is any vehicle malfunction complaint lodged by a customer, perform malfunction diagnosis according to the troubleshooting procedure.

Troubleshooting Procedure

Fig 1: Blind Spot Monitoring (BSM) Control Module - Troubleshooting Flowchart

Courtesy of MAZDA MOTORS CORP.

*1: (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW .)

Action for Non-repeatable Malfunction

• If the malfunction does not recur, verify the malfunction cause by performing the following actions:

• Based on the repair order form, attempt to drive the vehicle or perform tests to replicate the malfunction, record the data at that time, and detect the malfunction cause.
• Shake the wiring harness or connector of the electrical component which is suspected to be the cause of the malfunction, and inspect for occurrence of any malfunction or DTCs.

Fig 2: Shaking Wiring Harness Or Connector Of Electrical Component

Courtesy of MAZDA MOTORS CORP.

• Inspect the female terminals on the connector of the electric component which is suspected to be the cause of the malfunction for poor connection. (See ELECTRICAL SYSTEM .)

Fig 3: Inspecting Female Terminals On Connector Of Electric Component

Courtesy of MAZDA MOTORS CORP.