Dtc B2965 - Suzuki XL7 2007 Service Manual

9C-29 Instrumentation / Driver Info. / Horn:
Circuit/System Testing
1. Ignition OFF, disconnect the C2 harness connector
at the underhood fuse block.
2. Connect a test lamp between the harness connector
terminal 27 and battery voltage.
3. Ignition ON, command the horn ON and OFF with a
scan tool. The test lamp should turn ON and OFF
when changing between the commanded states.
➢ If the test lamp is always OFF, test the horn relay
control circuit for a short to voltage or an open/high
resistance. If the circuit tests normal, replace the
BCM.

DTC B2965

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: ".
DTC Descriptor
DTC B2965: Key In Ignition Circuit Open
Diagnostic Fault Information
Circuit
Key In Ignition Alarm Switch Signal Circuit
Circuit Description
The ignition switch closes, signal circuit is low, when the
key is in the ignition and opens, signal circuit is high,
when the key is not in the ignition. The body control
module (BCM) monitors the key in ignition signal circuit
in order to activate an audible warning.
Conditions for Running the DTC
The ignition is ON.
Conditions for Setting the DTC
• The ignition 1 voltage circuit is active, high signal, and
the key in ignition signal circuit is high.
• The conditions above must be present for more than
0.3 second.
Action Taken When the DTC Sets
The BCM stores DTC B2965 in memory.
➢ If the test lamp is always ON, test the horn relay
control circuit for a short to ground. If the circuit
tests normal, replace the BCM.
4. If all circuits test normal, replace the underhood fuse
block.
Repair Instructions
Perform the "Diagnostic Repair Verification - Vehicle
Diagnostic Information: " after completing the diagnostic
procedure.
• "Underhood Electrical Center or Junction Block
Replacement: "
• "Control Module References: " for BCM replacement,
setup and programming
Short to Open/High
Ground Resistance
— B2965
Conditions for Clearing the DTC
• The DTC becomes history when the fault is no longer
present.
• A history DTC will clear after 100 consecutive ignition
cycles if the condition for the malfunction is no longer
present.
• The BCM receives a clear code command from the
scan tool.
Reference Information
Schematic Reference
• "Audible Warnings Schematics"
• "Body Control System Schematics: "
Connector End View Reference
• "Displays and Gages Connector End Views"
• "Data Communication Connector End Views: "
Electrical Information Reference
• "Circuit Testing: "
• "Connector Repairs: "
• "Testing for Intermittent Conditions and Poor
Connections: "
• "Wiring Repairs: "
Scan Tool Reference
"Scan Tool Data List - Displays and Gages"
Signal
Short to Voltage
Performance
— —