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Intrusion Sensor 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.

Diagnostic Fault Information

Circuit

Short to Ground

Open/High Resistance

Short to Voltage

Signal Performance

Inclination Sensor B+

1

1

--

--

Intrusion Sensor B+

2

2

-

--

Inclination/Intrusion Sensor Armed Signal

1, 2

1, 2

1, 2

-

Inclination Sensor Signal

1

1

1

--

Intrusion Sensor Signal

2

2

2

-

1. Inclination Sensor Malfunction

2. Intrusion Sensor Malfunction

Circuit/System Description

The intrusion sensor detects movement within the vehicle while parked. B+ is supplied to the inclination sensor at all times and the body control module (BCM) arms the sensor using the armed signal circuit. If movement is detected while armed, BCM is informed via the intrusion sensor alarm on circuit. The BCM will then send a signal to the auxiliary body control module (XBCM) to sound the content theft alarm.

Reference Information

Schematic Reference

Theft Deterrent System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Content Theft Deterrent (CTD) 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 Testing
  1. Ignition OFF, disconnect the harness connector at the intrusion sensor.
  2. Ignition ON, verify a test lamp illuminates between the B+ circuit terminal 1 and ground.
    3. ⇒ If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  3. Ignition OFF, disconnect the X3 harness connector at the BCM.
  4. Ignition ON, test for less than 1 V between the following signal circuit terminals and ground:
    5. • Signal circuit terminal 16
    • Signal circuit terminal 15
    ⇒If greater than the specified range, test the signal circuit for a short to voltage.
  5. Test for infinite resistance between the following signal circuit terminals and ground:
    6. • Signal circuit terminal 16
    • Signal circuit terminal 15
    ⇒If less than the specified value, test the signal circuit for a short to ground.
  6. Test for less than 2 Ω between the signal circuit terminal 15 at the BCM and the signal circuit terminal 3 at the inclination sensor.
    7. ⇒If greater than the specified range, test the signal circuit for an open/high resistance.
  7. Test for less than 2 Ω between the signal circuit terminal 16 at the BCM and the signal circuit terminal 2 at the inclination sensor.
    8. ⇒If greater than the specified range, test the signal circuit for an open/high resistance.
  8. Disconnect the X1 harness connector at the XBCM.
  9. Ignition ON, test for less than 1 V between the signal circuit terminal B9 and ground.
    10. ⇒If the greater than the specified range, test the signal circuit for a short to voltage.
  10. Test for infinite resistance between the signal circuit terminal B9 and ground.
    11. ⇒If less than the specified value, test the signal circuit for a short to ground.
  11. Test for less than 2 Ω between the signal circuit terminal B9 at the XBCM and the signal circuit terminal 7 at the BCM.
    12. ⇒If greater than the specified range, test the signal circuit for an open/high resistance.
  12. If all circuits test normal, test or replace the intrusion sensor.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

    •  Theft Deterrent Sensor Replacement
    • Control Module References for BCM and XBCM replacement, setup, and programming
   


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