Operation CHARM: Car repair manuals for everyone.
Home >> Chevrolet >> 2008 >> Aveo L4-1.6L >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Accessories and Optional Equipment >> Alarm Module >> Service and Repair
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Alarm Module: Service and Repair



Theft Deterrent Module Replacement

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.


Removal Procedure




1. Remove the lower steering column cover panel screws.
2. Turn the steering wheel in order to access the upper steering column panel screws. Remove the upper steering column cover panel screws.
3. Remove the upper and the lower steering column cover panels.




4. Disconnect the electrical connector from the immobilizer control unit.




5. Remove the immobilizer control unit.


Installation Procedure




1. Install the immobilizer control unit.
2. Connect the electrical connector to the immobilizer control unit.





Important: After replacing the immobilizer, the keys must be re-authorized using the key coding procedure. Refer to Programming Theft Deterrent System Components (Tech 2) (Programming and Relearning)Programming Theft Deterrent System Components (Scan 100) (Programming and Relearning).


3. Install the upper and the lower steering column cover panels.

Notice: Refer to Fastener Notice (Fastener Notice).

4. Install the lower steering column cover panel screws.

Tighten the lower steering column cover panel screws to 3 N.m (27 lb in).

5. Turn the steering wheel in order to access the upper steering column panel screw holes. Install the upper steering column cover panel screws.

Tighten the upper steering column cover panel screws to 3 N.m (27 lb in).

6. Connect the negative battery.

pro multis · About Operation CHARM