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Neutralizing 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 in "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.

e.g. When keys are lost, neutralize the PCM (ECM) and then teach keys.

(Refer to Things to do when teaching Key & PIN Code. The PCM (ECM) can be "neutralized" by using KDS/GDS.) If wrong vehicle specific data have been sent to SMATRA three times continuously or intermittently, the SMATRA will reject the request to enter neutral mode for one hour. Disconnecting the battery or other manipulation cannot reduce this time. Once the battery is connected, the timer will reset to one hour.

Fig 1: ECM Neutralizing Condition Chart
G12298506Courtesy of KIA MOTORS AMERICA, INC.
Fig 2: Screen Display - Immobilizer Selection
G12298507Courtesy of KIA MOTORS AMERICA, INC.
Fig 3: Screen Display - ID Register (Neutral Mode)
G12298508Courtesy of KIA MOTORS AMERICA, INC.
Fig 4: Screen Display - Neutral Mode (Without Pin Code)
G12298509Courtesy of KIA MOTORS AMERICA, INC.
Fig 5: Screen Display - Neutral Mode (With Pin Code)
G12298510Courtesy of KIA MOTORS AMERICA, INC.
Fig 6: Screen Display - Neutral Mode Confirmation Message
G12298511Courtesy of KIA MOTORS AMERICA, INC.
Fig 7: Screen Display - Neutral Mode (Test Completed)
G12298512Courtesy of KIA MOTORS AMERICA, INC.
Fig 8: Screen Display - Neutral Mode (IG ON/OFF)
G12298513Courtesy of KIA MOTORS AMERICA, INC.
Fig 9: Screen Display - Current Data
G12298514Courtesy of KIA MOTORS AMERICA, INC.
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