FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Replacement of ECM and SMARTRA




PROBLEMS AND REPLACEMENT PARTS:

REPLACEMENT OF ECM AND SMARTRA
In case of a defective ECM, the unit has to be replaced with a "virgin" or "neutral" ECM. All keys have to be taught to the new ECM. Keys, which are not taught to the ECM, are invalid for the new ECM (Refer to key teaching procedure). The vehicle specific data have to be left unchanged due to the unique programming of transponder.
In case of a defective SMARTRA, there is no special procedure required. A new SMARTRA device simply replaces the old one. There are no transponder-related data stored in this device.




1. Things to remember before a replacement (PCM (ECM))




2. Things to remember before a replacement (Keys & Additional registration)

NOTE:
1. When there is only one key registered and you wish to register another key, you need to re-register the key which was already registered.
2. When the key # 1 is registered and master key # 2 is not registered, Put the key # 1 in the IG/ON or the start position and remove it. The engine can be started with the unregistered key # 2. (Note that key # 2 must be used within 10 seconds of removing key # 1)
3. When the key #1 is registered and key # 2 is not registered, put the unregistered master key # 2 in the IG/ON or the start position. The engine cannot be started even with the registered key # 1.
4. When you inspect the immobilizer system, refer to the above paragraphs 1, 2 and 3. Always remember the 10 seconds zone.
5. If the pin code & password are entered incorrectly on three consecutive inputs, the system will be locked for one hour.
6. Be cautious not to overlap the transponder areas.
7. Problems can occur at key registration or vehicle starting if the transponders should overlap.







NEUTRALIZING OF ECM
The PCM (ECM) can be set to the "neutral" status by a tester.

A valid ignition key is inserted and after ignition on is recorded, the PCM (ECM) requests the vehicle specific data from the tester. The communication messages are described at "Neutral Mode" After successfully receiving the data, the PCM (ECM) is neutralized.

The ECM remains locked. Neither the limp home mode nor the "twice ignition on" function, is accepted by the PCM (ECM).

The teaching of keys follows the procedure described for the virgin PCM (ECM). The vehicle specific data have to be unchanged due to the unique programming of the transponder. If data should be changed, new keys with a virgin transponder are requested.

This function is for neutralizing the PCM (ECM) and Key. Ex) when lost key, Neutralize the PCM (ECM) then teach keys.
(Refer to the Things to do when Key & PIN Code the PCM (ECM) can be set to the "neutral" status by a scanner. A valid ignition key is inserted and after ignition on is recorded, the PCM (ECM) requests the vehicle specific data from the scanner. The communication messages are described at" Neutral Mode". After successfully receiving the data, the PCM (ECM) is neutralized.
The PCM (ECM) remains locked. Neither the limp home mode nor the "twice ignition on" function is accepted by PCM (ECM).
The teaching of keys follows the procedure described for virgin PCM (ECM). The vehicle specific data have to be unchanged due to the unique programming of transponder. If data should be changed, new keys with virgin transponder are requested.

NOTE:
- Neutralizing setting condition
- In case of PCM (ECM) status "Learnt" regardless of user password "Virgin or Learnt"
- Input correct PIN code by scanner.
- Neutralizing meaning .
: PIN code (6) & user password (4) deletion.
: Locking of ECM (except key teaching permission)