- A flat-head screwdriver
- A Phillips-head screwdriver
- A 10mm socket wrench
- A 13mm socket wrench
Here are the steps on how to change the immobilizer:
1. Disconnect the battery. This is located on the left-hand side of the engine compartment.
2. Remove the steering wheel cover. This is held in place by two Phillips-head screws.
3. Remove the steering column shroud. This is held in place by two 10mm bolts.
4. Disconnect the electrical connector from the immobilizer.
5. Remove the two 13mm bolts that hold the immobilizer in place.
6. Remove the immobilizer.
7. Install the new immobilizer.
8. Reverse the steps above to reassemble the steering column and connect the battery.
Note: This is a general guide and the exact steps may vary depending on your specific model of Holden Astra.
