SDM Cannot Communicate through the Serial Data Circuit: Troubleshooting

TROUBLESHOOTING FLOW TEST DESCRIPTION

Step	Action	YES	NO
1	Make sure that SUZUKI scan tool (2) is free from malfunction. Ignition switch OFF. Check proper connection of SUZUKI scan tool (2) to DLC (1). Special Tool  09932-76010    Is scan tool connector connected to DLC securely?	Go to Step 2.	Properly connect SUZUKI scan tool to DLC.
2	Check if communication is possible by trying communication with other control module (ECM or ABS control module (if equipped)). Is it possible to communicate with other control module?	Go to Step 3.	Repair open in common section of serial data circuit ("BLU" wire circuit) used by all controllers or short to ground or power circuit which has occurred some-where in serial data circuit ("BLU" wire circuit).
3	With ignition switch OFF, disconnect SDM connector "L70" (4) and connector "L83" (3). Check proper connection at "L83-1" ("BLU" wire) terminal for DLC. If OK, then check resistance between "L83-1" ("BLU" wire) terminal and "L70-28" terminal of SDM connector "L70" (4). Special Tool  09932-76010    Is resistance 0 - 1 Ω?	Substitute a known-good SDM and recheck.	Repair high resistance or open in "BLU" wire circuit (between connector "L83" and SDM).
NOTE: Upon completion of inspection and repair work, perform the following items. Reconnect all air bag system components, ensure all components are properly mounted. Repeat AIR BAG DIAGNOSTIC SYSTEM CHECK: EXCEPT ADVANCED AIR BAG  to confirm that the trouble has been corrected.