Suzuki Grand Vitara 2011 Manual page 1671

Step
2 1) With ignition switch OFF, disconnect special tools (B)
and (C) or (D) from "G26" or "G27" connector and SDM
connector "G47" or "G46" from SDM respectively.
2) Release Shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
3) Measure voltage between "G47-5" terminal and body
ground, and between "G47-6" terminal and body ground
[A] or between "G46-1" terminal and body ground, and
between "G46-2" terminal and body ground [B].
Special tool
(A): 09932–76010
(B): 09932–75010
(C): 09932–78340
(D): 09932–77320
[A]
[B]
With ignition switch ON, is each measured value 4 V or less?
Action
"G26", "G27"
(C), (D)
BASE OF COLUMN
(B)
1, (A)
(A)
"G47-5" "G47-6"
1, (A)
"G46-1"
"G46-2"
Yes
Substitute a known-
good SDM and recheck.
I5JB0A820031-02
Air Bag System: 8B-40
No
"GRN/RED" circuit or
"GRN" circuit shorted to
power supply circuit.