Dtc B3976; Dtc P0513 - Suzuki XL7 2007 Service Manual

DTC B3976

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 B3976 46: Unconfigured Transponder/Vehicle
Configuration Not Programmed
Circuit/System Description
When the theft deterrent module (TDM) is in the learn
coded key state, the TDM checks the current key to
ensure it has been configured as a proper vehicle key.
Conditions for Running the DTC
• Ignition is in the Accessory or Run position.
• The TDM is in the learn coded key state.
Conditions for Setting the DTC
The TDM has determined the current key is not
configured as a proper vehicle key.
Action Taken When the DTC Sets
• The security indicator will be illuminated.
• Vehicle starting will be disabled.
Conditions for Clearing the DTC
• A current DTC will be cleared when the TDM detects
a properly configured vehicle key.
• A history DTC will be cleared after 100 malfunction-
free ignition cycles or when a scan tool is used to
clear DTCs.
Reference Information
Schematic Reference
"Immobilizer Schematics"
Connector End View Reference
"Immobilizer Connector End Views"
Description and Operation
"Immobilizer 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 - Immobilizer"
• "Scan Tool Data Definitions - Immobilizer"
Immobilizer Control System:
Circuit/System Verification
NOTE
When using this diagnostic, more than one
vehicle key is required to ensure proper
diagnosis. If more than one key is not
available at the time of service, contact the
customer and ask if any other keys can be
provided for service. If unavailable, a new
second key can be created.
While viewing DTCs with a scan tool, attempt to start the
vehicle using all of the available keys. The vehicle
should start with all available keys.
➢ If any key results in inoperative starting and DTC
B3976 is set as current, replace the suspect key.
Repair Instructions
Perform the "Diagnostic Repair Verification - Vehicle
Diagnostic Information: " after completing the diagnostic
procedure.
"Replacing Keys"

DTC P0513

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 P0513: Theft Deterrent Key Incorrect
Circuit/System Description
The theft deterrent module (TDM) sends the prerelease
password to the engine control module (ECM) via the
serial data circuit. The ECM then sends a challenge to
the TDM. Both the ECM and TDM perform a calculation
on this challenge. If the calculated response from the
TDM equals the calculation performed by the ECM, the
ECM will allow vehicle starting.
Conditions for Running the DTC
Ignition is in the ACCESSORY or RUN position.
Conditions for Setting the DTC
The calculated response from the TDM does not equal
the calculation performed by the ECM.
Action Taken When the DTC Sets
• The security indicator will illuminate.
• Vehicle starting will be disabled.
10C-12