Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 227 (IMMOBILIZER SYSTEM)
2006 Isuzu Ascender S, 5.3 M, 4WD
Section 227 (Immobilizer System)
2006 Isuzu Ascender S, 5.3 M, 4WDSECTION Section 227 (Immobilizer System)
WARNING: This page is about a different car, the 2007 Isuzu Ascender, 2007 GMC Envoy, 2007 Chevrolet TrailBlazer, and 2007 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Code Index
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Starting Point - Immobilizer
- DTC B2945
- DTC B2955
- DTC B2960
- DTC B3031
- DTC B3033
- DTC B3055
- DTC B3060
- DTC B3935
- DTC P1626
- DTC P1630 (Export)
- DTC P1630 (Domestic)
- DTC P1631 (Export)
- DTC P1631 (Domestic)
- DTC P1632
- Repair Instructions
- Description and Operation
- Immobilizer Description and Operation
- Immobilizer - Passlock™ System (Domestic)
- Ignition Lock Cylinder Case, Including the Passlock™ Sensor
- Ignition Switch
- Body Control Module (BCM)
- Powertrain Control Module
- Theft System Indicator
- Fuel Lockout Cycle
- Changing the Passlock™ Components
- Immobilizer - Export Passkey III™ System
- Theft Deterrent Module
- Powertrain Control Module (PCM)
- The Ignition Key (Transponder)
- Master Keys
- Ignition Lock Cylinder
- SECURITY Indicator Operation
- SECURITY Indicator Illuminates when Engine is Running
- SECURITY Indicator Illuminated and Engine Does Not Start
- SECURITY Indicator Flashes and Engine Does Not Start
- Immobilizer Description and Operation
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.