Suzuki Grand Vitara JB416 / JB420. Manual - part 304
8B-12 Air Bag System:
Diagnostic Information and Procedures
Air Bag Diagnostic System Check
S5JB0A8204001
WARNING
!
To avoid deployment when troubleshooting
the air bag system, do not use electrical test
equipment such as a battery powered or AC
powered voltmeter, ohmmeter, etc., or any
type of electrical equipment other than that
specified in this manual. Do not use a non-
powered probe type tester.
Instructions in this manual must be followed
carefully, otherwise personal injury may
result.
CAUTION
!
The order in which DTCs are diagnosed is
very important. Failure to diagnose the DTCs
in the order specified may result in extended
diagnostic time, incorrect diagnosis and
incorrect parts replacement.
The diagnostic procedures used are designed to find
and repair air bag system malfunctions.
To get the best results, it is important to use the
diagnostic flow and follow the sequence in the following.
1) Perform the “Air Bag Diagnostic System Check
Flow”.
(The “Air Bag Diagnostic System Check Flow” must
be the starting point of any air bag system diagnosis.
The “Air Bag Diagnostic System Check Flow” checks
for proper “AIR BAG” warning lamp operation
through “AIR BAG” warning lamp and whether air
bag DTCs exist.)
2) Refer to the proper diagnostic flow as directed by the
“Air Bag Diagnostic System Check Flow”.
(The “Air Bag Diagnostic System Check Flow” will
lead you to the correct flow to diagnose any air bag
system malfunctions. Bypassing these procedures
may result in extended diagnostic time, incorrect
diagnosis and incorrect parts replacement.)
3) Repeat the “Air Bag Diagnostic System Check Flow”
after any repair or diagnostic procedures have been
performed.
(Performing the “Air Bag Diagnostic System Check
Flow” after all repair or diagnostic procedures will
ensure that the repair has been made correctly and
that no other malfunctions exist.)
Air Bag Diagnostic System Check Flow
S5JB0A8204002
CAUTION
!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to each
flow.
• When measurement of resistance or voltage is required in the flow, use a tester along with a correct
terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor
• If an open circuit in the air bag wire harness damaged, connector or terminal is found, replace the
wire harness, connectors and terminals as an assembly.
Flow test description
Step 1: Check “AIR BAG” warning lamp and circuits.
Step 2: Check that “AIR BAG” warning lamp lights.
Step 3: Check diagnosis switch circuit.
Step 4: Check that “AIR BAG” warning lamp flashes 6 times after ignition switch is turned ON.
Step 6: Check that history code(s) is in SDM memory. (using SUZUKI scan tool)
Step 7: Check that history code(s) is in SDM memory. (using monitor coupler)
Step 9: Check that current code is in SDM memory. (using SUZUKI scan tool)
Step 10: Check that current code is in SDM memory. (using monitor coupler)
5. Forward-sensor
12. Seat belt pretensioner
: 9 N
⋅m (0.9 kgf-m, 6.5 lb-ft)
6. “A/B” fuse in junction block assembly
13. Side curtain-air bag (inflator) module (if equipped)
: 6 N
⋅m (0.6 kgf-m, 4.5 lb-ft)
7. Air bag harness in floor harness
14. Air bag harness in instrument panel harness
: 11 N
⋅m (1.1 kgf-m, 8.0 lb-ft)