Dtc SUZUKI SWIFT 2005 2.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine Instrumentation / Driver Info. / Horn: 9C-2
Combination Meter Reception Data
NOTE
*:ESP® model

ECM BCM
Keyless
Start
Control Module
(if equipped)
Combination Meter
TCM
(A/T model)
Engine speed signal
Immobilizer indicator light control signal
Vehicle speed signal
Engine coolant temperature signal
MIL control signal
Transmission range sensor signal
Transmission warning light signal
Diagnostic trouble code (DTC)
Brake fluid level switch signal
(brake warning light control signal)
Driver side seat belt buckle switch signal
(seat belt reminder light control signal)
Charging system warning light signal
(charge warning light control signal)
Engine oil pressure switch signal
(oil pressure warning light control signal)
Parking brake switch signal
(brake warning light control signal)
Illumination ON signal
Door switch signal
(open door warning light control signal)
ABS indication signal
EBD indication signal
(brake warning light control signal)
Key indicator light control signal ABS/ESP®
ControlModule
DATA
Receive
*
ESP® status signal
I7RS0B930001-01

Downloaded from www.Manualslib.com manuals search engine 9C-11 Instrumentation / Driver Info. / Horn:
Information Display Symptom Diagnosis (If Equipped)S7RS0B9304015
NOTE
This thermometer indicates the ambient temperature in back of front bumper member. Under any one
of the following listed conditions, however, even when the ambient temperature goes up, the
thermometer display does not rise so as to correct the rise of the ambient temperature caused by the
radiant heat of the engine. When the ambient temperature drops, the thermometer reading follows the
change in the temperature.
Be sure to bear this in mind when diagnosing trouble.
• The vehicle speed is 30 km/h (18 mph) or lower.
• Vehicle speed signal is faulty.
• The ignition switch is turned on again within 2 hours.

ConditionPossible cause Correction / Reference Item
No displaying of
information display Circuit fuse Blown
Replace fuse and check for short circuit.
Wiring and/or grounding faulty Repair as necessary.
Information display unit faulty Replace unit.
Incorrect thermometer
display Outside air temperature sensor faulty
Check outside air temperature sensor referring
to “Outside Air Temperature Sensor Inspection
(If Equipped)”.
Vehicle speed signal faulty Check ECM for DTC referring to “DTC Check
in Section 1A”.
Wiring and/or grounding faulty Repair as necessary.
Information display unit faulty Replace unit.
BCM faulty Replace after making sure that none of above
parts is faulty.
Display of thermometer
does not change at –30
°C Outside air temperature is –30
°C (–22
° F) or less —
Outside air temperature sensor faulty Check outside air temperature sensor referring
to “Outside Air Temperature Sensor Inspection
(If Equipped)”.
Information display unit faulty Replace unit.
BCM faulty Replace after making sure that none of above
parts is faulty.
Display of thermometer
does not change at 50
°C Outside air temperature is 50
°C (122
° F) or more —
Outside air temperature sensor faulty Check outside air temperature sensor referring
to “Outside Air Temperature Sensor Inspection
(If Equipped)”.
Information display unit faulty Replace unit.
BCM faulty Replace after making sure that none of above
parts is faulty.
Display of thermometer
does not change at “– – –
°C” Outside air temperature sensor faulty
Check outside air temperature sensor referring
to “Outside Air Temperature Sensor Inspection
(If Equipped)”.
Outside air temperature sensor circuit is
open or short Repair as necessary.
Wiring and/or grounding faulty Repair as necessary.
Information display unit faulty Replace unit.
BCM faulty Replace after making sure that none of above
parts is faulty.

Downloaded from www.Manualslib.com manuals search engine Instrumentation / Driver Info. / Horn: 9C-12
Clock Symptom Diagnosis (If Equipped)S7RS0B9304016
Audio System Symptom Diagnosis (If Equipped)S7RS0B9304017
Radio
NOTE
Electronic part / system with undiagnosed pr oblem may cause electromagnetic interference.
Electromagnetic interference condition may have poor radio reception. To test for presence of
electromagnetic interference in part / system, perform the following procedures.
1. Turn ignition switch to OFF.
2. Systematically disconnect the electronic part / system connector(s) one at a time.
3. Turn ignition switch to ON.
4. Check any improvement in radio reception.

Display of fuel
consumption does not
change at “– – – l / 100 km
(km/l, MPG)” Vehicle is not running (instantaneous
fuel consumption mode)
—
Fuel consumption was reset (average
fuel consumption mo de, if equipped)Vehicle runs for a while.
Vehicle speed signal faulty Check ECM for DTC referring to “DTC Check
in Section 1A”.
Wiring and/or grounding faulty Repair as necessary.
ECM faulty Check input and output signal of ECM referring
to “Inspection of ECM and Its Circuits in
Section 1A”.
Information display unit faulty Replace unit.
BCM faulty Replace after making sure that none of above
parts is faulty.
Condition Possible cause Correction / Reference Item
Condition
Possible cause Correction / Reference Item
No displaying of clock Circuit fuse Blown Replace fuse and check for short circuit.
Wiring and/or grounding faulty Repair as necessary.
Clock unit faulty Replace unit.
ConditionPossible cause Correction / Reference Item
Poor radio reception Out of service area (Poor location) —
Antenna faulty Replace antenna.
Electrical part / system faulty Repair or replace electrical part / system
referring to after-mentioned NOTE.
Wiring and/or grounding faulty Repair as necessary.
Radio assembly faulty Replace radio assembly.
Radio does not operate
and speaker does not
sound Circuit fuse(s) blown
Replace fuse(s) and check for short circuit.
Wiring and/or grounding faulty Repair as necessary.
Radio assembly faulty Replace radio assembly.
Radio does not operate,
but speaker sound Wiring and/or grounding faulty
Repair as necessary.
Radio assembly faulty Replace radio assembly.
Radio is operative, but all
speakers does not sound Wiring and/or grounding faulty
Repair as necessary.
Radio assembly faulty Replace radio assembly.
Individual speaker is
noisy or inoperative Wiring and/or grounding faulty
Repair as necessary.
Speaker faulty Replace speaker.
Radio assembly faulty Replace radio assembly.
Sound quality is poor Out of service area (Poor location) —
Speaker installed incorrectly Install correctly.
Wiring and/or grounding faulty Repair as necessary.
Speaker faulty Replace speaker.
Radio assembly faulty Replace radio assembly.

Downloaded from www.Manualslib.com manuals search engine Table of Contents 10- i
10
Section 10
CONTENTS
Control Systems
Precautions ............................................... 10-1
Precautions........................................................... 10-1
Precautions for Control Systems......................... 10-1
Body Electrical Contro l System ........... 10B-1
Precautions......................................................... 10B-1
Precautions in Diagnosing Trouble ................... 10B-1
General Description ........................................... 10B-1 BCM General Description ................................. 10B-1
CAN Communication System Description......... 10B-2
Theft Deterrent Light ......................................... 10B-3
Security Alarm Description (If Equipped) .......... 10B-3
Schematic and Routing Diagram ...................... 10B-4 Body Electrical Control System Wiring Circuit Diagram .......................................................... 10B-4
Connector Layout Diagram of BCM and Junction Block Assembly ................................ 10B-7
Component Locatio n ......................................... 10B-8
BCM and Related System Component Location .......................................................... 10B-8
Diagnostic Information an d Procedures .......... 10B-9
BCM Self-Diagnosis Function ........................... 10B-9
Body Electrical Control System Check............ 10B-10
Scan Tool Data ............................................... 10B-12
DTC Table ....................................................... 10B-14
DTC Check ..................................................... 10B-14
DTC Clearance ............................................... 10B-15
BCM Power Circuit and Ground Circuit Check 10B-16
DTC B1133 (DTC No. 1133): Battery Voltage Too High ....................................................... 10B-17
DTC B1141 / DTC B1142 (No. 1141 / No. 1142): Outside Air Temperature (Ambient
Temp.) Sensor Circuit Ma lfunction ................ 10B-18
DTC B1150 (No. 1150): Air Bag Communication Circuit Malfunction .............. 10B-19
DTC B1157 (No. 1157): Air Bag Deployment Signal Input ................................................... 10B-20
DTC B1170 (No. 1170 ): EEPROM Access
Error .............................................................. 10B-21
DTC U0155 (No. 0155): Lost Communication with Instrument Panel Cluster (IPC) Control
Module .......................................................... 10B-21
DTC U1073 (No. 1073): Control Module Communication Bus Off ................................ 10B-24 DTC U1100 (No. 1100): Lost Communication
with ECM ....................................................... 10B-25
DTC U1101 (No. 1101): Lost Communication with TCM ....................................................... 10B-27
DTC U1144 (No. 1144): Lost Communication with Keyless Start Control Module ................ 10B-29
Inspection of BCM and its Circuits .................. 10B-31
Repair Instructions ........... ...............................10B-39
BCM (Included in Junction Block Assembly) Removal and Installation ............................... 10B-39
Outside Air Temperature Sensor Removal and Installation .............................................. 10B-39
Outside Air Temperature Sensor Inspection ... 10B-39
Security Alarm Mode Selection Procedure (If Equipped) ...................................................... 10B-39
Special Tools and Equipmen t .........................10B-40
Special Tool .................................................... 10B-40
Immobilizer Control Syst em ................. 10C-1
Precautions.........................................................10C-1
Precautions in Diagnosing Troubles .................10C-1
Precaution in Replacing ECM ...........................10C-1
Precautions in Handli ng Immobilizer Control
System ............................................................10C-1
General Description ...........................................10C-2 Immobilizer Control System Introduction ..........10C-2
Immobilizer Control System Components Location...........................................................10C-3
On-Board Diagnostic System Description (Self-diagnosis Function) ................................10C-3
Schematic and Routing Diag ram ......................10C-4
Immobilizer Control System Wiring Circuit Diagram...........................................................10C-4
Diagnostic Information an d Procedures ..........10C-5
Immobilizer Control System Check ...................10C-5
Diagnostic Trouble Code (DTC) Check.............10C-5
Diagnostic Trouble Code (DTC) Clearance ......10C-6
Diagnostic Trouble Code (DTC) Table ..............10C-6
Scan Tool Data .................................................10C-7
Immobilizer Indicator Lamp Does Not Come ON with Ignition Switch ON and Engine Stop ..10C-7
Immobilizer Indicator Lamp Remains ON after Engine Starts...................................................10C-8
DTC P1614: Transponder Re sponse Error .......10C-9

Downloaded from www.Manualslib.com manuals search engine 10-ii Table of Contents
DTC P1615: ID Code Does Not Registered (Vehicle equipped with keyless start system
only) ................................................................10C-9
DTC P1616: Different Registration ID Codes (Vehicle equipped with keyless start system
only) ..............................................................10C-10
DTC P1618: CAN Communication Error (Reception Error for Keyless Start Control
Module) (Vehicle equipped with keyless
start system only) ..........................................10C-11
DTC P1621: Immobilizer Communication Line Error ......................................................10C-12
DTC P1622: EEPROM Reading / Writing Error ..............................................................10C-13
DTC P1623: Unregistered Transponder .........10C-13
DTC P1625: Immobilizer An tenna Error..........10C-14
DTC P1636: Immobilizer Information Registration Failure .......................................10C-14
DTC P1638: Immobilizer Information Mismatched ...................................................10C-15
Inspection of Immobilizer Control Module (ICM) and Its Circuit ....... ...............................10C-16
Repair Instructions ........... ...............................10C-18
Immobilizer Control Mo dule (ICM) Removal
and Installation ..............................................10C-18
Registration of the Ignition Key .......................10C-18
Procedure after ECM Replacement ................10C-18
Special Tools and Equipmen t .........................10C-19
Special Tool ....................................................10C-19
Keyless Start System ....... ......................10E-1
General Description ........................................... 10E-1
Keyless Start System Description ..................... 10E-1
Parts and Functions .......................................... 10E-2
Keyless Engine Start Function .......................... 10E-3
Door Lock Function of Keyless Start System .... 10E-4
Operation Area of Remote Controller................ 10E-5
Alarm Function .................................................. 10E-6
CAN Communication System Description......... 10E-6
Schematic and Routing Diagram ...................... 10E-7 Keyless Start System El ectric Wiring Circuit
Diagram .......................................................... 10E-7
Diagnostic Information and Procedures .......... 10E-8 Precautions in Diagnosing Troubles ................. 10E-8
Self-Diagnosis Function .................................... 10E-8
Keyless Start System Diagn osis Introduction ... 10E-8 Keyless Start System Chec
k ............................. 10E-8
Customer Questionnaire (E xample) .................. 10E-9
Key Indicator Lamp Check .............................. 10E-10
DTC Check...................................................... 10E-10
DTC Table ....................................................... 10E-11
DTC Clearance ............................................... 10E-12
Keyless Start System Symp tom Diagnosis ..... 10E-12
Keyless Start System Operation Inspection .... 10E-13
Door Lock Operation (Keyless Start System) . 10E-14
Inspection of Keyless Start Control Module and Its Circuits .............................................. 10E-14
No DTC Detection After Performing DTC Check ............................................................ 10E-18
Key Indicator Lamp Circuit Check (Key indicator lamp doesn’t light when ignition
knob switch is pushed.) ................................. 10E-20
Keyless Start Control Module Power and Ground Circuit Check .................................... 10E-22
DTC No. 11: Communi cation Error with
Steering Lock Unit ......................................... 10E-23
DTC No. 13 / No. 14: Release Signal Error from Steering Lock Unit / Steering Lock Unit
Malfunction .................................................... 10E-24
DTC No. 21 / No. 22: Internal Error of Keyless Start Control Module (EEPROM reading
error) / (EEPROM writing error) ............ ........ 10E-24
DTC No. 31: Lost Commun ication with BCM .. 10E-25
DTC No. 33: Control Module Communication
Bus Off .......................................................... 10E-27
DTC No. 51 / No. 52 / No. 53: Driver Side / Passenger Side / Rear End Door Request
Switch Failure................................................ 10E-28
Repair Instructions ............ .............................. 10E-30
Antennas and Request Switches Removal and Installation .............................................. 10E-30
Front Door (Driver and Passenger Side), Rear End Door Request Switch Inspection............ 10E-31
Steering Lock Unit Removal and Installation .. 10E-31
Steering Lock Unit Inspection ......................... 10E-31
Front Door Lock Switch In spection ................. 10E-31
Keyless Start Control Module Removal and Installation ..................................................... 10E-32
Remote Controller Inspection.......................... 10E-32
Replacement of Remote Controller Battery .... 10E-32
Registration Procedure for Remote Controller
ID Code ......................................................... 10E-33

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-2
CAN Communication System DescriptionS7RS0BA201002
Refer to “CAN Communication System Description in Section 1A” for CAN communication system description. BCM
communication control data with ea ch control module as follows.
BCM Transmission Data
BCM Reception Data
A/C switch ON signal
Electric load signal
"3" position switch signal
Illumination ON signal
Brake fluid level switch signal
Parking brake switch signal
Seat belt buckle switch signal
Charging system signal
Engine oil pressure switch signal
Diagnostic trouble code (DTC)
Door switch status
Door lock status ECM
TCM
(A/T model) Combination
Meter Keyless Start
Control Module
(if equipped)
Transmit DATA
BCM
ESP
Control Module
(if equipped)
I7RS0BA20002-01
Engine speed signal
Vehicle speed signal Engine coolant temperature signal
A/C refrigerant pressure signal
Fuel consumption signal A/C compressor clutch signal
Transmission range sensor signal
Fuel level signal
Ignition knob switch signal
Door lock/unlock request signal
Buzzer request signal
Answer back request signal
DATA
BCM
Receive
Combination
Meter
TCM
(A/T model) Keyless Start
Control Module (if equipped)
ECM
I7RS0AA20001-01

Downloaded from www.Manualslib.com manuals search engine 10B-3 Body Electrical Control System:
Theft Deterrent LightS7RS0BA201003
The information display or clock (1) of this vehicle includes a theft deterrent light (2) for the theft preventive purpose.
The BCM makes the theft deterrent light flash at certain interval s after the ignition switch is turned off until it is turned
on again. Also, to check DTCs stored in BCM without usin g a SUZUKI scan tool when diagnosing troubles, it is
possible to identify them by flashing patterns of the theft deterrent light.
Security Alarm Description (If Equipped)S7RS0BA201004
Operation
The security alarm system provides a warning of an abnormal condition to those who are around. Its operation is as
follows. While the system is in the stand- by mode (when 20 seconds or more elapsed after the door is locked using a
keyless entry transmitter or door request switch), BCM monitors door lock status, door switch status and battery power
supply voltage. When it detects an abnormal condition (door is unlocked by some way other than using keyless entry
transmitter or door request switch and opened or cut off BCM power supply voltage temporarily), it activates the
warning buzzer (located in BCM), theft deterr ent light, hazard warning relay and horn relay.
The security alarm system has 2 selectable modes.
• A mode: No operation
• B mode: Theft deterrent light blinks, hazard warning lights blink, warning buzzer (located in BCM) sounds and horn
sounds
When B mode is selected and the door is locked using keyl ess entry transmitter or door request switch, the theft
deterrent light (1) flashes at 0.1 second interval for 20 seconds and the se curity alarm system is set to the stand-by
mode (2). Once it is se t to the stand-by mode, the theft deterrent light blinks at 2 second intervals.
When the system is set to stand-by mode and the door is unlocked by some way other than using keyless entry
transmitter or door request switch and opened or cut off BCM power supply voltage temporarily, the alarm devices
operate according to the selected mode as described above.
The alarm stops under either of the following conditions.
• Ignition switch is turned ON
• A certain time has elapsed since the alarm started
For selection of the mode of the security alarm system , refer to “Security Alarm Mode Selection Procedure (If
Equipped)”.
1 2I4RS0AA20031-01
B A1T3
T1
T2 2
C
I5RS0DA20003-01
A: Indicator lamp turned ON
T1: 0.1 seconds
B: Indicator lamp turned OFF T2: 20 seconds
C: When door is locked using keyless entry tr ansmitter or door request switch T3: 2 seconds

Downloaded from www.Manualslib.com manuals search engine 10B-9 Body Electrical Control System:
Diagnostic Information and Procedures
BCM Self-Diagnosis FunctionS7RS0BA204001
• BCM monitors conditions of the system components and its circuit with ignition switch turned to ON position. When
an abnormality in the system oc curs, the area where that abnormality lies is stored in the memory of EEPROM in
BCM.
• DTC can be checked in either one of following ways. – DTC can be checked by SUZUKI scan tool (2) connected to DLC (1).
– DTC can be read from flashing pattern of theft deterrent light (3). Also, DTC is displayed on combination meter
(4) at the same time.
BCM input / output table
4. Oil pressure switch 15. Rear end door window defogger switch 26. Rear wiper relay
5. Outside air temperature sensor (if equipped) 16. A/C switch
27. Rear end door window defogger relay
6. Door lock actuator (incorporated in key cylinder switch) 17. Hazard warning switch
28. Turn signal and hazard warning relay
7. Door switch 18. Rear wiper switch 29. Key reminder switch (included in ignition switch)
8. Interior light 19. Lighting switch
9. Rear end door opener switch 20. Manual door lock switch
3
1
2
4I4RS0BA20004-03
Control
Input Output
Power door lock system • Key cylinder switch
• Manual door lock switch • Each door lock actuator
Keyless entry system • Key reminder switch
• Keyless entry receiver
• Driver side door switch • Each door lock actuator
• Turn signal and hazard warning relay
• Interior light
Keyless start system
(Door lock function) • Keyless start control module
• Each door lock actuator
• Turn signal and hazard warning relay
• Interior light
Rear wiper • Rear wiper INT switch
• Rear wiper LO switch • Rear wiper relay
Combination meter • Tail light switch
• Oil pressure switch
• Parking brake switch
• Driver side seat belt switch
• Brake fluid level switch
• Generator
• Each door switch • Combination meter

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-10
Body Electrical Control System CheckS7RS0BA204002
Interior light• Each door switch
• Key reminder switch • Interior light
Warning buzzer • Key reminder switch
• Tail light switch
• Driver side door switch
• TCM (reverse signal) (if equipped)
• ECM (vehicle speed signal)
• Keyless start control module (if equipped) • Warning buzzer (located in BCM)
Rear end door window
defogger • Rear end door window defogger switch
• Generator • Rear end door window defogger
relay
Rear end door opener • Manual door lock switch (unlock signal)
• Key cylinder switch (unlock signal)
• Keyless entry transmitter (unlock signal) (if
equipped)
• Rear end door opener switch • Rear end door opener relay
Theft deterrent light • Key reminder switch • Theft deterrent light (located in
information display or clock)
Control Input Output
Step
Action YesNo
1 ) Customer complaint analysis
1) Perform customer complaint analysis.
Was customer complaint analysis performed? Go to Step 2.
Perform customer
complaint analysis.
2 ) Problem symptom confirmation
1) Perform problem symptom confirmation.
Does trouble recur? Go to Step 3.
Go to Step 7.
3 ) DTC check
1) Check DTC.
Is it malfunction code? Go to Step 4.
Go to Step 5.
4 ) Troubleshooting for DTC
1) Check and repair according to DTC diag. flow.
Are check and repair completed? Go to Step 7.
Check and repair
malfunction part(s).
5 ) Body electrical control system symptom diagnosis
1) Perform check and repair referring to “Symptom Diagnosis” of system having a trouble.
Is there faulty condition? Repair or replace
malfunction part(s).
Go to Step 6.
6 ) Check for intermittent problem
1) Check for interm ittent problem.
Is there faulty condition? Repair or replace
malfunction part(s).
Go to Step 7.
7 ) Final confirmation test
1) Clear DTC referring to “DTC Clearance”.
2) Check DTC referring to “DTC Check”.
Is there any DTC? Go to Step 4.
End.

Downloaded from www.Manualslib.com manuals search engine 10B-11 Body Electrical Control System:
Customer Complaint Analysis
Record details of the problem (failure, complaint) and how it occurred as described by the customer.
For this purpose, use of such a questionnaire form as shown in figure will facilitate collectin g information to the point
required for proper analysis and diagnosis. Customer questionnaire (example)
Problem Symptom Confirmation
Check if what the custom er claimed in “Customer
Questionnaire” is accurately f ound in the vehicle. If that
symptom is found, check whether the symptom is
identified as a failure. (This step should be shared with
the customer if possible.)
DTC Check
Check DTC stored in BCM me mory referring to “DTC
Check”, record it and then clear it referring to “DTC
Clearance”. DTC indicates malfunction that occurred in
the system but does not indicate whether it exists now or
it occurred in the past and the normal condition has been
restored now. To check which case applies, clear DTC
once and check whether or not any fault exists.
Troubleshooting for DTC
Based on the DTC indicated in Step 3 and referring to
applicable DTC flow, locate the cause of the trouble,
namely in a sensor, wire harness, connector, BCM or
other part and repair or replace faulty parts. Body Electrical Control System Symptom Diagnosis
Check the parts or system
suspected as a possible
cause referring to symptom diagnosis of each system.
Check for Intermi ttent Problem
Check parts where an intermit tent trouble is easy to
occur (e.g., wire harness, connector, etc.), referring to
“Intermittent and Poor Connec tion Inspection in Section
00”.
Final Confirmation Test
Confirm that the problem symptom has gone and the
body electrical control system is free from any abnormal
conditions. If what has been repaired is related to the
malfunction DTC, check DTC again and confirm that no
DTC is indicated.
Customers name:
Model:
VIN:

Date of issue:
Date Reg:
Date of problem:
Mileage:

Problem Symptoms
Power door lock system does not operate
Keyless entry system does not operate
Rear end door window defogger does not operate
Rear wiper does not operate
Rear end door opener does not operate
Other
Frequency of Occurrence
Continuous / Intermittent ( times a day, a month)
/ Other

Environmental Condition
Weather:
Fine / Cloudy / Rain / Snow / Other

Temperature: (F )
Diagnostic Trouble Code Normal code / Malfunction code ( )

Warning buzzer does not sound
Interior light does not light
Theft deterrent light does not flush
I5RS0DA20006-01