Suzuki GA413 Service Manual page 714

10B-20 AIR BAG SYSTEM
TABLE E – SDM CANNOT COMMUNICATE THROUGH THE SERIAL DATA
CIRCUIT
1. From main fuse
2. Ignition switch
3. "IG METER" fuse in fuse box
4. "AIR BAG" warning lamp in combination lamp
5. "AIR BAG" fuse in fuse box
6. Connection detection pin
CAUTION:
D Be sure to perform AIR BAG DIAGNOSTIC SYSTEM CHECK before starting diagnosis according
to flow table.
D When measurement of resistance or voltage is required in this table, use a tester along with a cor-
rect terminal adapter from special tool (Connector test adapter kit).
D When a check for proper connection is required, refer to INTERMITTENT AND POOR CONNEC-
TIONS in this section.
D If there is open circuit in the air bag wire harness, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.
TABLE TEST DESCRIPTION:
STEP1:An improper connection to the data link connector (DLC) will prevent communications from being estab-
lished.
STEP2:This test checks whether it is possible to communicate with other control module.
STEP3:This test checks for an open in "V/G" circuit (in air bag harness).
:Air bag harness
7. SDM
8. DLC
9. To ECM, P/S control module (if equipped) and ABS control module
(if equipped)
10. "AIR BAG" monitor coupler
11. Ground for air bag system