Daewoo Nubira. Manual - part 2

IMMOBILIZER ANTI–THEFT SYSTEM  9T – 5

DAEWOO V–121 BL4

6.  Turn the ignition OFF and ON again, but do not

crank or start the engine. The powertrain control
module (PCM)/engine control module (ECM) will
reset the ECM ID code to match the new ID code
that was calculated and sent by the immobilizer
control unit when the ignition was first turned ON
after the reset command.

7.  Return the system to the normal mode.
8.  Turn the ignition OFF.
9.  Turn the ignition ON.
10.  Start the engine.

After reprogramming the ID code, the scan tool SYSTEM
DIAGNOSIS command can verify that the PCM/ ECM ID
code matches the immobilizer control unit ID code.

If the reprogramming procedure does not result in match-
ing ID codes, check the electrical connectors for the serial
data wire between the immobilizer control unit and the
PCM/ECM.

TRANSPONDER

If a transponder is faulty, the ignition key must be replaced.
It is not possible to install a new transponder into a key.

DETECTION COIL

Removal Procedure

1.  Carefully pull the knee bolster trim panel until it is

loose from its retaining clips.

9T – 6

I

IMMOBILIZER ANTI–THEFT SYSTEM

DAEWOO V–121 BL4

2.  Slide the knee bolster trim panel upward and pull it

outward to remove it.

3.  Remove the instrument panel side cover.

4.  Remove the bolts and the knee bolster.

5.  Remove the steering column lower cover. Refer

toSection 6E, Steering Wheel and Column.

6.  Disconnect the two–pin connector from the immobi-

lizer.

IMMOBILIZER ANTI–THEFT SYSTEM  9T – 7

DAEWOO V–121 BL4

7.  Pry the detection coil away from the lock cylinder. If

the detection coil will be replaced with a new one, it
does not matter if the key position trim ring is dam-
aged during removal. A new trim ring is part of the
new detection coil.

Installation Procedure

1.  Install the detection coil by pressing it onto the lock

cylinder until it snaps in place.

2.  Connect the two–pin connector to the immobilizer.
3.  Install the steering column lower cover. Refer to

Section 6E, Steering Wheel and Column.

4.  Install the knee bolster with the bolts.

Tighten

Tighten the knee bolster mounting bolts to 22 N

S

m (16

lb–ft)

5.  Install the instrument panel side cover.
6.  Install the knee bolster trim panel.

9T – 8

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IMMOBILIZER ANTI–THEFT SYSTEM

DAEWOO V–121 BL4

IMMOBILIZER CONTROL UNIT

Removal Procedure

1.  Disconnect the negative battery cable.
2.  Carefully pull the knee bolster trim panel loose from

its retaining clips.

3.  Slide the knee bolster trim panel upward and pull it

outward to remove it.

4.  Remove the instrument panel side cover.

5.  Remove the bolts and the knee bolster.
6.  Remove the bolts and the immobilizer control unit.
7.  Disconnect the electrical connectors from the im-

mobilizer control unit.