Antitheft and Alarm Systems: Service and Repair

Parts Set:
A: Valet key

B: Immobilizer control unit
Master key
Learning key

C: Immobilizer receiver

D: Ignition switch with immobilizer receiver
Immobilizer control unit
Master key
Learning key

E: PCM

F: Door key cylinder
Master keys for doors open or locked

G: Ignition switch with immobilizer receiver
Immobilizer control unit
Master key
Learning key
Door key cylinders
Trunk key cylinder

NOTE:
- The immobilizer system can store up to five key codes.
- If it is necessary to rewrite the immobilizer control unit to learn a new key, the dealer needs the customer's vehicle, all its master keys and valet keys, its learning key, and the Honda PGM Tester equipped with an immobilizer program card. Any key that is not learned during rewriting will no longer start the engine.
- If the customer has lost his key, and cannot start the engine, contact Acura Customer Relations or Roadside Assistance.

Before Testing:
- Due to the action of the immobilizer system, the engine takes slightly more time to start than engines of vehicle without an immobilizer system.
- When the system is normal, and the proper key is inserted, the indicator light comes on for two seconds, then it will go off.
- If the indicator starts to blink after two seconds, or if the engine does not start, repeat the starting procedure.
- If the engine still does not start, perform the immobilizer control unit input test and transponder and immobilizer receiver test.
- If all the input tests and transponder and immobilizer receiver test prove OK, check the PCM.
- If the PCM is OK, the immobilizer control unit must be faulty; replace the immobilizer control unit, master key and learning key together, and then rewrite the PCM with the Honda PGM Tester.
- If the PCM is faulty, substitute a known-good PCM, and recheck. However, since the known-good PCM has a different code stored into it, it must be rewritten with the Honda PGM Tester. Otherwise, the engine will not start.