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 MANUALSSATURN2009ASTRA XR, 2D HATCHBACK, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEBODY, CAB CONTROL SYSTEMSVEHICLE ACCESSDIAGNOSTIC INFORMATION AND PROCEDURESDTC B004ADIAGNOSTIC FAULT INFORMATION
2009 Saturn Astra XR, 2D Hatchback, Automatic
Diagnostic Fault Information
2009 Saturn Astra XR, 2D Hatchback, AutomaticSECTION Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Door Lock Relay B+ | B004A 00 | 4 | - | - |
| Door Unlock Relay B+ | B004A 00 | 4 | - | - |
| Central Door Lock Switch Lock/Unlock Signal | B3150 5A | 1 | 1 | - |
| Door Lock Relay Control | 2 | B004A 00 | 4 | - |
| Door Lock Indicator Control | 3 | 3 | 3 | - |
| Door Unlock Relay Control | 2 | B004A 00 | 4 | - |
| Lock Control | 2 | 2 | 2 | - |
| Unlock Control | 2 | 2 | 2 | - |
| Door Lock Relay Ground | - | 4 | 4 | - |
| Door Unlock Relay Ground | - | 4 | 4 | - |
| Multifunction I/P Switch Ground | - | 1,3 | 1,3 | - |
| 1. Central Door Lock Switch Inoperative 2. Door Locks Inoperative 3. Door Lock Indicator Malfunction 4. Crash Unlock Malfunction |
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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.