Diagnostic Information And Procedures; Bcm Self-Diagnosis Function - Suzuki SX4 Service Manual

10B-9 Body Electrical Control System:
7. Door switch
8. Interior light

BCM Self-Diagnosis Function

• BCM monitors conditions of the system components and its circuit with ignition switch turned to ON position. When
an abnormality in the system occurs, the area where that abnormality lies is stored in the memory of EEPROM in
BCM.
• DTC can be checked in either one of following ways.
– DTC can be checked by SUZUKI scan tool (2) connected to DLC (1).
– DTC can be read from flashing pattern of Theft deterrent light (3). Also, DTC is displayed on combination meter
(4) at the same time.
BCM Input / Output Table
Control
Power door lock system
Keyless entry system
Keyless start system
(Door lock function)
Keyless start system
(Trunk lid opener function)
Rear wiper
Combination meter
Interior light
19. Lighting switch
20. Manual door lock switch (if equipped)

Diagnostic Information and Procedures

2
1
• Key cylinder switch
• Manual door lock switch
• Key reminder switch
• Keyless entry receiver
• Driver side door switch
• Keyless start control module
• Keyless start control module
• Rear wiper INT switch
• Rear wiper LO switch
• Tail light switch
• Oil pressure switch
• Parking brake switch
• Driver side seat belt switch
• Brake fluid level switch
• Generator
• Each door switch
• Each door switch
• Key reminder switch
Input
3
4
Output
• Each door lock actuator
• Each door lock actuator
• Turn signal and hazard warning relay
• Interior light
• Each door lock actuator
• Turn signal and hazard warning relay
• Interior light
• Trunk lid opener actuator
• Rear wiper relay
• Combination meter
• Interior light
S7RW0AA204001
I5RW0AA20007-01