BCM-METER Signal Circuit Inspection: Reference

WARNING: This page is about a different car, the 2006 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.

TCM-BCM CAN COMMUNICATION SIGNAL

Measurement terminal	CH1: "G53-9" to "G53-3", CH2: "G53-1" to "G53-3"
Oscilloscope setting	CH1: 1 V / DIV, CH2: 1 V / DIV TIME: 40 s / DIV
Measurement condition	Ignition switch ON A/T shift selector is "P" position A/T mode is normal mode

Fig 1: Identifying TCM-BCM CAN Communication Signal Blinking Pattern

Courtesy of SUZUKI OF AMERICA CORP.

BCM-METER SIGNAL CIRCUIT

Measurement terminal	CH1: G11-8 to G11-10
Oscilloscope setting	CH1: 5 V / DIV TIME: 400 s / DIV
Measurement condition	Ignition switch ON Parking brake is applied Washer level switch is full position

Fig 2: Identifying BCM-METER Signal Blinking Pattern

Courtesy of SUZUKI OF AMERICA CORP.