Chevrolet Trax: Symptoms - theft deterrent
NOTE: The following steps must be completed before using the
symptom tables.
- Perform Diagnostic System Check - Vehicle in order to verify that all of
the following are true:
- There are no DTCs set.
- The control modules can communicate via the serial data link.
- Review the system operation in order to familiarize yourself with the
system functions. Refer to the
following Theft Systems Description and Operation.
Visual/Physical Inspection
- Inspect for aftermarket devices which could affect the operation of the
Theft Deterrent System. Refer to
Checking Aftermarket Accessories .
- Inspect the easily accessible or visible system components for obvious
damage or conditions which could
cause the symptom.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent
conditions. Refer to Testing for
Intermittent Conditions and Poor Connections .
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to
diagnose the symptom:
- Content Theft Deterrent Malfunction
- Security Indicator Malfunction
CONTENT THEFT DETERRENT MALFUNCTION
Diagnostic Instructions
- Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure
- Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
- Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
Circuit/System Description
The content theft deterrent system is a software based system in which the
Body Control Module (BCM)
actively monitors certain inputs to determine if unauthorized vehicle access is
being attempted. Based on inputs
such as the door ajar switches, the rear compartment ajar switch, and the hood
ajar switch, the BCM determines
whether a content theft deterrent alarm is warranted. If unauthorized access is
being detected, the BCM will
pulse the vehicle horn and flash the exterior lamps as a means of theft
deterrence.
Diagnostic Aids
The scan tool BCM Content Theft Deterrent Trigger History 1, 2, and 3
parameters can be used to help isolate
an intermittent unwanted content theft deterrent alarm. These parameters are a
rolling history of the previous
three causes of a theft deterrent alarm. If all three parameters are indicating
the same alarm trigger, the indicated
input should be the starting point when diagnosing an intermittent concern.
Reference Information
Schematic Reference
Theft Deterrent System Schematics (Encore), Theft Deterrent System
Schematics (Trax)
Connector End View Reference
WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS -
INDEX - ENCORE WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT
CONNECTOR END VIEWS - INDEX - TRAX
Description and Operation
Theft Systems Description and Operation
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
- Ignition ON.
- Verify each indicator/message transition between the ajar and closed
state while opening and closing each
vehicle door, hood, and rear compartment.
If the indicator/message does not change
Refer to Door Ajar Indicator Malfunction , or Hood Ajar Indicator/Message
Malfunction
If each indicator/message changes
- Completely lower the driver door window and close all vehicle doors,
ignition OFF.
- Arm the content theft deterrent system by locking the door with the
keyless entry transmitter.
- Verify the scan tool BCM Content Theft Deterrent Alarm Status parameter
is Armed.
If not Armed
Refer to Keyless Entry System Malfunction .
If Armed
- Without disarming the system, reach in through the open driver window
and open the driver door.
- Verify the scan tool BCM Content Theft Deterrent Alarm Status parameter
is Alarm.
If not Alarm
Replace the K9 Body Control Module.
If Alarm
- All OK.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
Control Module References for Body Control Module replacement, programming,
and setup
READ NEXT:
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
THEFT SYSTEMS DESCRIPTION AND OPERATION
When armed, the content theft deterrent system is designed to deter vehicle
content theft by pulsing the horns
and exterior lamps for approximately 30 seconds
Repair instructions
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Fastener Tightening Specifications
REPAIR INSTRUCTIONS
FRONT BUMPER FASCIA ENERGY UPPER ABSORBER REPLACEMENT
Fig. 1: Front Bum
SEE MORE:
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
DTC Descriptors
D
Fig. 15: View Of Front Side Door Hinge
Front Side Door Upper Hinge and Lower Hinge Replacement
HOOD HINGE REPLACEMENT
Fig. 16: Hood Hinge
Hood Hinge Replacement
LIFTGATE HINGE REPLACEMENT
Fig. 17: Liftgate Hinge
Liftgate Hinge Replacement
REAR SIDE DOOR UPPER HINGE AND LOWER HINGE