Suzuki XL7 2007 Service Manual page 2042

8B-30 Air Bag System:
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
B0052
• The SDM detects a frontal impact of sufficient force to
warrant deployment of the frontal modules.
• The SDM detects a side impact of sufficient force to
warrant deployment of a side impact module and/or
roof rail module.
• The SDM has deployed the seat belt pretensioner for
3 separate deployments.
B0053
SDM commands inflators deployment with loop faults
present.
Action Taken When the DTC Sets
• The SDM will only set DTC B0052 or the SDM sets
DTC B0053 along with DTC B0052.
• The SDM commands the AIR BAG warning lamp ON
via serial data communications.
• The SDM records crash data.
Conditions for Clearing the DTC
DTC B0052 can be cleared if the following conditions are
met.
• Three consecutive seat belt pretensioner deployment
events have not occurred.
• One frontal or side air bag deployment has not
occurred.
DTC B0052 becomes a latched code after 3 consecutive
pretensioner deployments or 1 frontal or side air bag
deployment. You cannot clear a latched code. Replace
the SDM after following the instructions in the diagnostic
table.
Diagnostic Aids
NOTE
The seat belt pretensioners may deploy for
impacts that are not severe enough to
warrant frontal or side air bag deployment.
The SDM is capable of sustaining 3
pretensioner deployment events, or one
frontal or side deployment event. After the
maximum number of deployments has
occurred, DTC B0052 sets and becomes a
latched code, which cannot be cleared.
When DTC B0053 is accompanied by additional DTCs,
other than B0052, repair the malfunction causing the
other DTCs before replacing SDM.
Reference Information
Schematic Reference
"SIR Schematics"
Connector End View Reference
"SIR Connector End Views"
Description and Operation
"SIR System Description and Operation"
Electrical Information Reference
• "Circuit Testing: "
• "Connector Repairs: "
• "Testing for Intermittent Conditions and Poor
Connections: "
• "Wiring Repairs: "
Scan Tool Reference
• "Scan Tool Data List - SIR"
• "Scan Tool Data Definitions - SIR"
Circuit/System Verification
1. Ignition OFF, verify no signs of inflator module or
pretensioner deployment exist.
➢ If any signs of deployment exist, refer to "Repairs
and Inspections Required After a Collision".
2. With a scan tool, verify DTC B0052 or DTC B0053 is
not set.
➢ If the DTC is set, clear DTCs. If DTC resets,
replace the SDM.
Repair Instructions
Perform the "Diagnostic Repair Verification - Vehicle
Diagnostic Information: " after completing the diagnostic
procedure.
• "SIR/SRS Wiring Repairs"
• "Control Module References: " for SDM replacement,
setup, and programming
DTC B0055
Diagnostic Instructions
• Perform the "Diagnostic System Check - Vehicle
Diagnostic Information: " prior to using this diagnostic
procedure.
• Review "Strategy Based Diagnosis: " for an overview
of the diagnostic approach.
• "Diagnostic Procedure Instructions - Vehicle
Diagnostic Information: " provides an overview of
each diagnostic category.
DTC Descriptor
DTC B0055 00: Side Airbag Deployment Commanded