Suzuki Liana RH413 Service Manual page 953

Troubleshooting
Step
1 1) Make sure that SUZUKI scan tool (2) is free from
malfunction.
2) Ignition switch OFF.
3) Check proper connection of SUZUKI scan tool (2) to
DLC (1).
Special tool
(A): 09932-76010
Is scan tool connector connected to DLC securely?
2 1) 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?
3 1) With ignition switch OFF, disconnect SDM connector
"L70" (4) and connector "L83" (3).
2) Check proper connection at "L83-1" ("BLU" wire)
terminal for DLC.
3) If OK, then check resistance between "L83-1" ("BLU"
wire) terminal and "L70-28" terminal of SDM connector
"L70" (4).
Special tool
(A): 09932-76010
(A)
Is resistance 0 – 1
Action
1
4
"L83-1"
"L70-28"
(A)
Ω
?
Yes
Go to Step 2.
2
I3RH0A820020-01
Go to Step 3.
Substitute a known-
good SDM and recheck.
3
I2RH01820022-01
Air Bag System: 8B-28
No
Properly connect
SUZUKI scan tool to
DLC.
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).
Repair high resistance
or open in "BLU" wire
circuit (between
connector "L83" and
SDM).