key battery DAEWOO NUBIRA 2004 Service Owner's Guide

9T1 – 4IREMOTE KEYLESS ENTRY AND ANTI–THEFT SYSTEM
DAEWOO V–121 BL4
CONTROL MODULE/RECEIVER CONNECTOR
TerminalColorDescription
1YELSiren
2BLKGround
3––
4LT BLUDoor and Trunk Tamper Switch
5PNK/BLKTrunk Open Switch
6––
7PNK/DKBLUHood Open Switch
8PPLDoor contact Switch
9LT BLU/BLKUnlock
10LT GRN/WHTLock
11YELUnlock
12LT GRNAnti–Theft Door Locking Switch
13DK BLURight Turn Signal Bulb
14––
15PNKIgnition+
16––
17LT GRNDiagnostic Communication
18LT GRN/REDKey Reminder Switch
19YEL/DK GRNSecurity Indicator
20PPLAnti–Theft Door Locking Switch
21––
22––
23––
24BRNTrunk Open Switch
25ORNBattery+
26LT BLULeft Turn Signal Bulb

REMOTE KEYLESS ENTRY AND ANTI–THEFT SYSTEM 9T1 – 5
DAEWOO V–121 BL4
MAINTENANCE AND REPAIR
ON–VEHICLE SERVICE
CONTROL MODULE/RECEIVER
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the floor console. Refer to Section 9G,
Interior Trim.
3. Disconnect the control module/receiver electrical
connector.
4. Slide the control module/receiver away from its
mounting bracket.
Installation Procedure
1. Install the control module/receiver on its mounting
bracket.
2. Connect the control module/receiver electrical con-
nector.
3. Install the floor console. Refer to Section 9G, Inte-
rior Trim.
4. Connect the negative battery cable.
SIREN (GENERAL ONLY)
Removal Procedure
1. Remove the siren electrical connector.
2. Remove the siren bracket mounting bolts and siren.

9T1 – 8IREMOTE KEYLESS ENTRY AND ANTI–THEFT SYSTEM
DAEWOO V–121 BL4
GENERAL DESCRIPTION
AND SYSTEM OPERATION
REMOTE KEYLESS ENTRY AND
ANTI–THEFT SYSTEM
The remote keyless entry and anti–theft system can per-
form the following functions:
S Remotely lock and unlock the vehicle doors by
means of a hand–held, high–frequency transmitter.
S Sense intrusion into the vehicle.
S Activate a warning in the event of an intrusion.
S Help the driver find the vehicle in a parking area.
S Automatically re–lock the doors if the door or the
trunk is not opened within 30 seconds after the ve-
hicle has been unlocked by the remote keyless
entry.
S Communicate serial data to a scan tool to help
diagnose system faults.
The remote keyless entry and anti–theft system consists
of the following components:
S Keyless entry and anti–theft control module/receiv-
er.
S Security indicator.
S Trunk open switch (NOTCHBACK).
S Trunk tamper switch (NOTCHBACK).
S Front door tamper switches.
S Door contact switches.
S Central door lock relay.
S Turn signal bulbs.
S Siren.
S Hood open switch.
REMOTE LOCKING AND UNLOCKING
The hand–held transmitter locks and unlocks the vehicle
doors by sending radio waves to the control module/re-
ceiver in the vehicle. The effective range of the transmitter
varies between 5 and 10 meters, (approximately 16 to 32
feet), depending on whether or not objects, such as other
vehicles are blocking the path of the radio waves.
The transmitter has a LOCK button and an UNLOCK but-
ton which only function when the ignition is OFF. Pressing
the UNLOCK button has the following effects:
S The doors are unlocked.
S The turn signal bulbs flash twice.
S The control module is disarmed.
Pressing the LOCK button has the following effects:
S The doors are locked.
S The turn signal bulbs flash once.
S The control module is armed.
The transmitter has a replaceable battery. The battery is
designed to last at least two years before replacement is
necessary.
SECURITY INDICATOR
There is a security indicator on the instrument panel. After
the LOCK button of the transmitter is pressed, the module
is placed in the armed mode, and the security indicator
flashes. The security indicator turns ON for 0.1 second
and OFF for 0.7 second. It then flashes at that frequency
until the control module/receiver is disarmed.
INTRUSION SENSING
The anti–theft function is armed if the transmitter sends
the LOCK message to the control module/receiver when
the ignition is OFF. When the hood, door, or trunk is
opened, the hood open, door contact, or trunk open switch
sends a ”ground” signal to the control module/receiver.
Unless the control module/receiver is disarmed, the siren
will be activated when the ”ground” signal is received from
the trunk open, hood open, or door contact switches.
The following actions disarm the anti–theft system:
S An UNLOCK message is received from the trans-
mitter.
S Key operation is detected by the tamper switches.
(The tamper switches are operated by the lock cyl-
inders in the front doors and trunk.)
The alarm will also be activated if the control module/re-
ceiver detects voltage from the ignition before either of the
following conditions occur:
S An UNLOCK message is received from the trans-
mitter.
S Key operation is indicated by the tamper switches.
SIREN (GENERAL ONLY)
The remote keyless entry system is armed when the
LOCK message is received from the transmitter when the
ignition is OFF. When the system is armed, it will activate
the siren and flash the turn signals for 28 seconds if any
of the following conditions occur:
S Close all the windows.
S Turn the ignition key to LOCK and remove the key.
S Have all passengers get out of the vehicle.
S Close all doors, the hood and the turnk lid.
S The control module/receiver detects ignition voltage
while the system is armed.
The siren will not operate if any of the following conditions
occur after the system has been armed:
S The door is opened with the key.
S The trunk is opened with the key.
S The UNLOCK or LOCK button on the remote trans-
mitter is pressed within 2 seconds after the siren is
activated.
VEHICLE LOCATOR
The remote keyless entry system assists the driver in lo-
cating the vehicle. When the vehicle is unlocked with the
remote control, the turn signals flash twice to indicate the
location of the vehicle. The duration of the flashes and the

SECTION : 9T2
IMMOBILIZER ANTI–THEFT SYSTEM
CAUTION : Disconnect the negative battery cable before removing or installing any electrical unit or when a tool
or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable will help
prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwise noted.
TABLE OF CONTENTS
SCHEMATIC AND ROUTING DIAGRAMS9T2–2 . . . .
Immobilizer Anti–Theft System 9T2–2. . . . . . . . . . . . .
DIAGNOSTIC INFORMATION AND
PROCEDURES9T2–3 . . . . . . . . . . . . . . . . . . . . . . . . . .
Immobilizer System
(MR–140, HV–240, SIRIUS D4) 9T2–3. . . . . . . . . . .
Diagnostic Trouble Code (DTC) P1626 (MR–140,
HV–240), P1628 (SIRIUS) 9T2–4. . . . . . . . . . . . . . .
Diagnostic Trouble Code (DTC) P1631 (MR–140,
HV–240), P1629 (SIRIUS D4) 9T2–6. . . . . . . . . . . .
Key Status Errors
(MR–140, HV–240, SIRIUS D4) 9T2–8. . . . . . . . . . .
Communication Between Immobilizer Control Unit and
Test Equipment
(MR–140, HV–240, SIRIUS D4) 9T2–8. . . . . . . . . . . MAINTENANCE AND REPAIR9T2–9 . . . . . . . . . . . . . .
ON–VEHICLE SERVICE 9T2–9. . . . . . . . . . . . . . . . . . . .
Key Coding Procedure 9T2–9. . . . . . . . . . . . . . . . . . . .
ID Code Reprogramming 9T2–9. . . . . . . . . . . . . . . . . .
Transponder 9T2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Immobilizer Control Unit 9T2–9. . . . . . . . . . . . . . . . . . .
GENERAL DESCRIPTION AND SYSTEM
OPERATION9T2–11 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Immobilizer System 9T2–11. . . . . . . . . . . . . . . . . . . . . .
Electronically Coded Keys 9T2–11. . . . . . . . . . . . . . . .
Detection Coil 9T2–11. . . . . . . . . . . . . . . . . . . . . . . . . . .
Immobilizer Control Unit 9T2–11. . . . . . . . . . . . . . . . . .
Serial Data Link 9T2–12. . . . . . . . . . . . . . . . . . . . . . . . .
Electronic Control Moudle (ECM) 9T2–12. . . . . . . . . .