Suzuki sq-416-420-625 Service Manual page 728

10B-22 AIR BAG SYSTEM
TABLE D – SDM CANNOT COMMUNICATE THROUGH THE SERIAL DATA CIRCUIT
(Page 1 of 2)
1. From main fuse
2. Ignition switch
.
3. "IG COIL METER" fuse in J/B
4. "AIR BAG" warning lamp in combination lamp
5. "AIR BAG" fuse in "AIR BAG" fuse box
CAUTION:
D When measurements are requested in this chart use specified digital multimeter with correct terminal
adapter from special tool (Connector test adapter kit).
D When a check for proper connection is requested refer to "Intermittent and Poor Connections" in this
section.
D When an open in air bag wire harness, damaged wire harness, connector or terminal is found, replace
wire harness, connectors and terminals as an assembly.
STEP
1 1) Make sure that scan tool (Tech 1) is free
from malfunction and correct cartridge for
air bag system is used.
2) Ignition switch OFF.
3) Check proper connection of scan tool
(Tech 1) to DLC.
4) Is connection in good condition?
: Air bag harness
9-1. "AIR BAG" warning lamp driver circuit
ACTION
6. DLC
7. To, ICM (if equipped)
8. Connection detection pin
9. SDM
YES
Go to step 2 on
next page.
NO
Properly connect scan
tool to DLC.