YH4
GRAND
VITARA
: Shorting bar
: Air bag harness
1. SDM
2. Contact coil assembly
3. Driver air bag (inflator) module
10B-32
AIR BAG SYSTEM
CODE 21 – DRIVER AIR BAG INITIATOR CIRCUIT RESISTANCE HIGH (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 “Intermittents 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 above 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 21 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 3.5
or less?
Substitute a known-
good SDM and
recheck.
Repair high resistance
or open in “G” or “G/R”
wire circuit.
Summary of Contents for Grand Vitara 1998
Page 225: ...YH4 GRAND VITARA FRONT SUSPENSION 3D 23 TIGHTENING TORQUE SPECIFICATIONS ...
Page 531: ...YH4 GRAND VITARA 8 6 BODY ELECTRICAL SYSTEM POWER SUPPLY DIAGRAM Refer to Section 8A ...
Page 659: ...YH4 GRAND VITARA BODY SERVICE 9 41 1 Side body outer panel A Apply sealant B Brush treatment ...
Page 673: ...YH4 GRAND VITARA BODY SERVICE 9 55 B B C C 2 DOOR MODEL ...