Cruze

Security Indicator Inoperative

The main immobiliser function is performed as an interaction between several modules. The process that determines whether the engine may be engaged or not consists of several steps. When the immobilizer is active the indicator in the dashboard is flashing.

Schematic Reference

Immobiliser Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Immobiliser Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

1. Ignition OFF, disconnect the harness connector at the B10B Ambient Light/Sunload Sensor.
2. Test for less than 5 Ω between the ground circuit terminal 6 and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance.

3. Disconnect the harness connector X1 at the K9 Body Control Module. Test for less than 0.3 V at the signal circuit terminal 1 at the B10B Ambient Light/Sunload Sensor and ground.

⇒	If greater than the specified range, test the signal circuit for a short to voltage.

4. Test for less than 5 Ω between the signal circuit terminal 1 at the B10B Ambient Light/Sunload Sensor and the signal circuit terminal 21 X1 at the K9 Body Control Module.

⇒	If greater than the specified range, test the signal circuit for an open/high resistance.

⇒	If the circuit tests normal, replace the B10B Ambient Light/Sunload Sensor.

5. If all circuits test normal, replace the K9 Body Control Module.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for body control module (BCM) replacement, setup, and programming