service DAEWOO LACETTI 2004 Service Repair Manual

SECTION : 9T1
REMOTE KEYLESS ENTRY AND 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
SPECIFICATIONS 9T1–1 . . . . . . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 9T1–1. . . . . . . . . .
SCHEMATIC AND ROUTING DIAGRAMS9T1–2 . . . .
Notchback Remote Keyless Entry and Anti–Theft
System 9T1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hatchback Remote Keyless Entry and Anti–Theft
System 9T1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Module/Receiver Connector 9T1–4. . . . . . . . .
MAINTENANCE AND REPAIR9T1–5 . . . . . . . . . . . . . .
ON–VEHICLE SERVICE 9T1–5. . . . . . . . . . . . . . . . . . . .
Control Module/Receiver 9T1–5. . . . . . . . . . . . . . . . . . .
Siren (General Only) 9T1–5. . . . . . . . . . . . . . . . . . . . . . Remote Keyless Entry Transmitter
Programming 9T1–7. . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL DESCRIPTION AND SYSTEM
OPERATION9T1–8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Keyless Entry and Anti–Theft System 9T1–8
Remote Locking and Unlocking 9T1–8. . . . . . . . . . . . .
Security Indicator 9T1–8. . . . . . . . . . . . . . . . . . . . . . . . .
Intrusion Sensing 9T1–8. . . . . . . . . . . . . . . . . . . . . . . . .
Siren (General Only) 9T1–8. . . . . . . . . . . . . . . . . . . . . .
Vehicle Locator 9T1–8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Autolocking (Safety Lock) 9T1–9. . . . . . . . . . . . . . . . . .
Control Module/Receiver 9T1–9. . . . . . . . . . . . . . . . . . .
Fault or Alarm Indication 9T1–9. . . . . . . . . . . . . . . . . . .
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNSmLb–FtLb–In
Siren Braket Mounting Bolts.8–71

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.

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. . . . . . . . . .

IMMOBILIZER ANTI–THEFT SYSTEM 9T2 – 9
DAEWOO V–121 BL4
MAINTENANCE AND REPAIR
ON–VEHICLE SERVICE
KEY CODING PROCEDURE
1. Install the immobilizer control unit cartridge in the
scan tool.
2. Turn the ignition off
3. Connect the scan tool
4. Turn the ignition on with the key to be coded
5. Enter the four–digit password that enables service
personnel to use the scan tool for key coding.
6. Use the scan tool command.
7. Verify that the key coding was successful by start-
ing the engine with each of the authorized keys.
ID CODE REPROGRAMMING
Reprogram the identification (ID) code in the following si-
tuations:
S An immobilizer control unit has been replaced.
S An electronic control module (ECM) has been re-
placed.
If a valid key has been lost, refer to ”Key Coding Proce-
dure” in this section.
TRANSPONDER
Each valid ignition key has an internal transponder which
is a read /write transponder.
The transponder contains an implementation of a crypto–
algorithm with 96 bits of user configurable secret–key con-
tained in EEPROM and transmits data to the ICU by mod-
ulating the amplitude of the electromagnetic field, and
receives data and commands in a similar way.
IMMOBILIZER CONTROL UNIT
Removal Procedure
1. Remove the imstrument panel lower cover.

NUBIRA/LACETTISERVICE NOTICE 0–1
FOREWORD
This manual includes procedure for maintenance, adjustment, service operation and removal
and installation of components.
All information, illustrations and specifications contained in this manual are based on the latest
product information available at the time of manual approval.
The right is reserved to make changes at any time without notice.

0–2 SERVICE NOTICENUBIRA/LACETTI
SECTION 0
SERVICE NOTICE
CONTENTS
1. HOW TO USE THIS MANUAL 0 – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. SPECIAL INFORMATION 0 – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 0 – 4. . . . . . . . . . . . . . . . . . . . . . . .

NUBIRA/LACETTISERVICE NOTICE 0–3
1. HOW TO USE THIS MANUAL
.
This manual covers the repairs of NUBIRA/LACETTI
automobile which has been involved in accidents, and it
describes the work related to the replacement of dam-
aged body parts.
Please read through these instructions and familiarize
yourself with them before actually using this manual.
.
Note : Refer to NUBIRA/LACETTI Service Manual for
specifications, wire harness locations, safety stand sup-
port points, etc.
2. SPECIAL INFORMATION
.
Indicates a strong possibility of personal injury or equip-
ment damage if instructions are not followed.
.
Note : Gives helpful information.
.
CAUTION : Detailed descriptions of standard work-
shop procedures, safety principles and service op-
erations are not included. Please note that this manu-
al does contain warnings and cautions against some
specific service methods which could cause PER-
SONAL INJURY, or could damage a vehicle or make
it unsafe. Please understand that these warnings can-
not cover all conceivable ways in which service,
whether or not recommended by GM DAEWOO might
be done or of the possible hazardous consequences
of each conceivable way, not could GM DAEWOO in-
vestigate all such ways. Anyone using service proce-
dures or tools, whether or not recommended by GM
DAEWOO, must satisfy himself thoroughly that nei-
ther personal safety or tools, whether or not recom-
mended by GM DAEWOO, must satisfy himself thor-
oughly that neither personal safety or vehicle safety
will be jeopardized.
.
All information contained in this manual is based on the
latest product information available at the time of print-
ing. We reserve the right to make changes at any time
without notice. No part of this publication may be repro-
duced, stored in retrieval system, or transmitted, in any
form by any means, electronic, mechanical, photocopy-
ing, recording, or otherwise, without the prior written
permission of the publisher. This includes text, figures
and tables.

0–4 SERVICE NOTICENUBIRA/LACETTI
3. SUPPLEMENTAL RESTRAINT
SYSTEM (SRS)
.
The following precautions should be observed when
performing sheet metal work, paint work and repair work
around the locations of the SRS parts.
.
1. SDM(Sensing and Diagnosis Module) are located un-
der the center console ass’y. Avoid strong impact with
ass’y hammer or other tools when repairing the front
side frame and the lower part of the dashboard. Do not
apply heat to these areas with a gas burner, etc.
2. SRS harness is located under the lower part of the
dashboard below the dashboard panel. (SRS harness iscovered with a yellow corrugated tube.) Care should be
taken not to damage the harness when repairing this
area.
3. Do not apply heat of more than 80°C (176°F) when
drying painted surfaces anywhere around the locations
of SRS parts.
4. If strong impact or high temperature needs to be ap-
plied to the areas around the locations of SRS parts, re-
move the part before performing repair work.
5. If any of the SRS related parts is damaged or de-
formed, be sure to replace it.
.
Note : Refer to the Service Manual(Supplemental Re-
straint System) for removal and replacement of SRS re-
lated parts.

BODY REPAIR MANUAL
(NUBIRA/LACETTI)
ISSUED BY
SERVICE ENGINEERING TEAM
GM DAEWOO AUTO & TECHNOLOGY CO., LTD.
199–1 CHONG CHON–DONG, PU PYUNG–GU,
INCHON, KOREA
TELEPHONE : 82–32–520–2737,2064
FACSIMILE : 82–32–520–4808

9–14 SEALING, CAULKING AND DEADNER NUBIRA/LACETTI
2. DEADNER
2–1. GENERAL DESCRIPTION
.
Deadner is properly designed and applied for reduce the
vibration and noise. Also, it plays in maintaining the
structural rigidity of the panel.
.
2–2. REPAIR PROCEDURE
.
1. Remove the related parts.
S Seats, carpet.
S Trims, others.
.
2. Removal of the damaged deadner.
S Peel off the damaged deadner with a steel spatula, care-
fully.
.
3. Clean and dry.
S Before applying the deadner, thoroughly clean and dry
the areas to be applied.
.
4. Prelocation the new deadner on the panels to be ap-
plied.
.
Note : Avoid the parts mounting holes and service holes.
.
5. Adhension of deadner.
S Heat the surface of deadner with a torch or heating gun
until it adheres itself.
S Push and adhere to the panel with a rubber spatula.
.
Note : In order to take full advantage of the deadner, its
face must adhere and contact the panels perfectly.
.
CAUTION : Be careful not to burn the composite
parts when beating.
Fig. 13
6. Install the related parts.
S Install in the reverse order in which they were removed.
Fig. 14