YH4
GRAND
VITARA
: Shorting bar
: Air bag harness
1. SDM
2. Contact coil assembly
3. Driver air bag (inflator) module
10B-34 AIR BAG SYSTEM
CODE 22 – DRIVER AIR BAG INITIATOR CIRCUIT RESISTANCE LOW (Page 1 of 2)
CAUTION:
When measurements are requested in this chart use specified digital multimeter with correct terminal
adapter from special tool (Connector test adapter kit).
When a check for proper connection is requested refer to “Intermittent and Poor Connections” in this
section.
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.
DTC WILL SET WHEN:
The combined resistance of the driver air bag (inflator) module, contact coil assembly, harness wiring and connec-
tor terminal contact is below a specified value for specified time.
NOTE:
Before executing items in this table, be sure to perform “Air Bag Diagnostic Check Flow Table”.
STEP
ACTION YES NO
1 1) With ignition switch OFF, disconnect contact
coil connector located near the base of the
steering column.
2) Check proper connection to contact coil at
terminals in “C” connector.
3) If OK then connect Special Tool (B) to contact
coil connector disconnected at step 1).
4) With ignition switch ON, is DTC 22 current?
Go to step 2. Go to step 3 on the
next page.
2 1) With ignition switch OFF, disconnect SDM.
2) Check proper connection to SDM at terminals
“A6” and “A7”.
3) Release shorting bar in SDM connector,
referring to the figure below.
4) If OK then measure resistance between “A6”
and “A7” terminals with connected Special Tool
(B).
5) Is resistance 1.7 or more?
Substitute a known-
good SDM and
recheck.
Repair short from “G”
wire circuit to “G/R” wire
circuit or from “G” or
“G/R” wire circuit to
other wire circuit.
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