2006 SUZUKI SWIFT Display

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-13 Body Electrical Control System:
Scan Tool Data Definitions
Vehicle Speed (km/h, mph): It is computed based on pulse signals from vehicle speed sensor on transmission.
Outside air Temp ( °C, °F): It is detected by outside air temperature sensor.
Battery Voltage (V): This parameter indicates battery po sitive voltage inputted to BCM.
Coolant Temp (Engine coolant temperature) ( °C, °F): It is detected by engine coolant temperature sensor.
Engine Speed (RPM): It is computed by reference pulse signals from CMP sensor.
Fuel Consumption (km/l): This parameter indicates the fuel consumption computed by ECM.
Key Reminder Sw (Key reminder switch) (Pulled / Key in): This parameter indicates the state of the key reminder
switch.
Rear Wiper Sw (Rear wiper switch) (ON / INT / OFF): This parameter indicates the state of the rear wiper switch.
Door key Sw (Door key cylinder switch) (Lock / Neutral / Unlock): This parameter indicates the state of the door
key cylinder switch.
Door lock Sw (Manual door lock switch) (Lock / Neutral / Unlock): This parameter indicates the state of the
manual door lock switch.
Driv Door Sw (Driver side d oor switch) (Open / Close): This parameter indicates the state of the driver side door
switch.
Pass Door Sw (Other than driver side door switch) (Open / Close): This parameter indicates the state of the door
switches other than driver side door switch.
Brake Fluid Level (Low / Normal): Low: Brake fluid level is lower than specified level.
Normal: Brake fluid level is higher than MIN level.
Parking Brake Sw (Parking brake switch) (ON / OFF): ON: Parking brake lever is pulled up.
OFF: Parking brake lever is released.
Rear Defogger Sw (Rear end door window defogger switch) (ON / OFF): This parameter indicates the state of
the rear end door window defogger switch.
Tail Light Sw (Lighting switch) (ON / OFF): This parameter indicates the state of the lighting switch.
Driv Seatbelt Sw (Driver seat belt switch) (Fasten / Unfasten): This parameter indicates the state of the driver
side seat belt buckle switch.
Rear end Door Opener (Rear end door opener switch) (ON / OFF): This parameter indicates the state of the rear
end door opener switch.
“3” position Sw (ON/OFF): This parameter indicates the state of the “3 ” position switch included in A/T manual
selector assembly.
Charge lamp (ON / OFF): This parameter indicates the state of the charge system monitor switch.
Oil pressure switch (ON / OFF): This parameter indicates the state of the oil pressure switch.
A/C Switch (ON / OFF): This parameter indicates the state of the air conditioning switch.
Diagnosis Using Output Test Function of SUZUKI Scan Tool
SUZUKI scan tool has the output test function which can force operation of following actuators and relays of the
system controlled by BCM. When a malf unction is found in the system controlled by BCM, execute the output test
which enables easy judgment whether the malfunction is on the input side or output side of BCM. For detailed
information on operation of SUZUKI scan tool, refer to “SUZUKI Scan Tool Operator’s Manual”.
Output Teat Item Controlled Parts
Hazard Warning Light Turn signal and hazard warning relay
Interior (Dome) Light Interior (Dome) light (wh en interior light switch is at DOOR position)
Door Each door lock actuator
Rear end door open Rear end door opener relay
Warning buzzer Warning buzzer (in BCM)
Rear wiper Rear wiper relay
Alarm indicator Theft deterrent light (in information display or clock)
Rear defogger Rear end door window defogger relay

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-14
DTC TableS7RS0BA204004
DTC CheckS7RS0BA204005
Using SUZUKI Scan Tool1) Prepare SUZUKI scan tool.
2) With ignition switch turned OFF, connect it to data link connector (DLC) located on underside of
instrument panel of driver’s side.
Special tool
(A): SUZUKI scan tool 3) Turn ignition switch ON.
4) Read DTC according to
instructions displayed on
SUZUKI scan tool and print it or write it down.
Refer to SUZUKI scan tool operator’s manual for
further details.
If communication between SUZUKI scan tool and
BCM is not possible, check if SUZUKI scan tool is
communicable by connecting it to BCM in another
vehicle. If communication is possible in this case,
SUZUKI scan tool is in good condition. Then check
data link connector and serial data line (circuit) in the
vehicle with which communica tion was not possible.
5) After completing the check, turn ignition switch off and disconnect SUZUKI scan tool from data link
connector.
DTC
(displayed
on SUZUKI scan tool) DTC (indicated
by theft
deterrent light) DTC (displayed on
odometer in
combination meter) Detected item Detecting condition
NO DTC 0000 0000 — No DTC detected
) B1133 1133 b1133 Battery voltage too high Battery voltage too high
) B1141 1141 b1141 Outside air temperature
(ambient temperature) sensor
circuit openSensor output voltage too high
) B1142 1142 b1142 Outside air temperature
(ambient temperature) sensor
circuit short to groundSensor output voltage too low
) B1150 1150 b1150 Air bag communication circuit
malfunctionAir bag communication circuit
open or short to ground
) B1157 1157 b1157 Air bag deployment signal input Air bag deployment signal
inputted
) B1170 1170 b1170 EEPROM access error Memory error
)
U0155 0155 U0155 Lost communication with
instrument panel cluster (IPC)
control moduleReceiving error of BCM from
combination mete
r for specified
time continuously
) U1073 1073 U1073 Control module communication
bus offTransmitting and receiving error
of BCM for specified time
continuously
) U1100 1100 U1100 Lost communication with ECM Receiving error of BCM from
ECM for specified time
continuously
) U1101 1101 U1101 Lost communication with TCM Receiving error of BCM from
TCM for specified time
continuously
) U1144 1144 U1144 Lost communication with
keyless start control moduleReceiving error of BCM from
keyless start control module for
specified time continuously
(A)
I4RS0BA20005-01

Downloaded from www.Manualslib.com manuals search engine 10B-15 Body Electrical Control System:
Without Using SUZUKI Scan Tool1) Turn ignition switch to OFF position.
2) Perform following Steps a) to d) within 10 seconds af ter ignition switch is turned ON and engine stops.
a) Turn headlight switch to “SMALL” position.
b) Turn headlight switch to “OFF” position.
c) Repeat Steps a) and b) 2 times.
d) Press and release driver side door switch 3 times.
3) Check DTC displayed on odometer of combination meter or read flashing pattern of theft deterrent light which
represents DTC as shown in the following example and write it down.
When more than 2 DTCs are stored in memory, flashing for each DTC starts with the smallest DTC number in
increasing order. Also, DTC is indicated repeatedly until the ignition switch is turned OFF.
4) After completing the check, turn ignition switch to OFF position.
DTC ClearanceS7RS0BA204006
After repair or replace of malfunction part(s), clear all
DTCs by performing the following procedure.
Using SUZUKI Scan Tool 1) Connect SUZUKI scan tool to data link connector in the same manner as when making this connection
for DTC check.
2) Turn ignition switch ON and engine stops.
3) Erase DTC according to instructions displayed on scan tool. Refer to scan tool operator’s manual for
further details.
4) After completing the clear ance, turn ignition switch
off and disconnect scan tool from data link
connector. Without Using SUZUKI Scan Tool
1) Turn ignition switch to OFF position.
2) Perform following Steps a) to d) within 10 seconds after ignition switch is turned ON and engine stops.
a) Turn headlight switch to “SMALL” position.
b) Turn headlight switch to “OFF” position.
c) Repeat Steps a) and b) 3 times.
d) Press and release driver side door switch 4 times.
3) After completing above Steps, confirm that no malfunction DTC is detected.
B A
[B] [A]
[C]
B A B A
3
113
3
113
T2
T1 T1 T1 T1
1
2
T2T2
T2
T1 T1 T1 T1T2T2
0
T2
0
T2
0
T2
0
T2
11 6 0
T1 T1 T1
T2
T3T2T2T2
I4RS0AA20007-01
[A]: No DTC (No. 0000) B: Indicator lamp turned OFF1. Theft deterrent light
[B]: DTC B1133 (No. 1133) T1: 0.3 seconds2. Odometer
[C]: When 2 DTCs are detected T2: 1.0 seconds
A: Indicator lamp tur ned ON T3: 3.0 seconds

Downloaded from www.Manualslib.com manuals search engine 10B-33 Body Electrical Control System:
BCM connector “G37”E46-11 Oil pressure switch
*3 – 14 V Refer to “Reference waveform No. 5: ”
0 V Ignition switch is at ON position and engine is at stop
E46-12 — — —
E46-13 — — —
E46-14 — — —
Terminal Circuit Normal voltage Condition
Terminal
CircuitNormal voltage Condition
G37-1 CAN communication line (low)
for DLC *1.6 – 2.5 V Refer to “Reference waveform No. 6: ”
G37-2 CAN communication line (low)
for combination meter *1.6 – 2.5 V Refer to “Reference waveform No. 7: ”
G37-3 CAN communication line
(high) for DLC *2.5 – 3.6 V Refer to “Reference waveform No. 6: ”
G37-4 CAN communication line
(high) for combination meter *2.5 – 3.6 V Refer to “Reference waveform No. 7: ”
G37-5 Serial communication line of
data link connector 8 – 12 V Ignition switch is at ON position
G37-6 — — —
G37-7 — — —
G37-8 Theft deterrent light 10 – 14 V Theft deterrent light is not lit up
0 V Theft deterrent light is lit up
G37-9 — — —
G37-10 — — —
G37-11 Serial communication line for
information display
(if equipped) *0 – 1 V
↑↓
10 – 14 V Refer to “Reference
waveform No. 8: ”
G37-12 Ground for keyless entry
receiver (if equipped) 0 V
—
G37-13 Power supply for keyless entry
receiver (if equipped) 4 – 6 V Ignition switch is at all positions
G37-14 Signal for keyless entry
receiver (if equipped) *0 – 1 V
↑↓
4 – 6 V Refer to “Reference
waveform No. 9: ”
G37-15 — — —
G37-16 Key reminder switch 10 – 14 V Ignition key is inserted to ignition key cylinder
0 V Ignition key is pulled out from ignition key cylinder
G37-17 Rear end door window
defogger switch 0 V
Ignition switch is at ON
position and rear end door
window defogger switch is pushed
10 – 14 V Ignition switch is at ON
position and rear end door
window defogger switch is not pushed
G37-18 A/C switch *3 – 14 V Refer to “Reference waveform No. 10: ”
0 V Ignition switch is at ON pos
ition, blower speed selector
is at any position other than OFF position and A/C
switch is at ON position
G37-19 — — —
G37-20 — — —
G37-21 Rear wiper INT switch *0 – 1 V
↑↓
10 – 14 V Refer to “Reference
waveform No. 11: ”
0 V Ignition switch is at ON pos
ition and rear wiper switch
is at INT position
G37-22 Rear wiper low switch *0 – 1 V
↑↓
10 – 14 V Refer to “Reference
waveform No. 12: ”
0 V Ignition switch is at ON pos
ition and rear wiper switch
is at LOW position

Downloaded from www.Manualslib.com manuals search engine 10B-37 Body Electrical Control System:
Reference waveform No. 7
BCM – combination meter CAN communication signal
Reference waveform No. 8
Information display serial communication signal (1)Reference waveform No. 9
Keyless entry receiver signal (1)
Reference waveform No. 10
A/C switch signal (1)
Measurement terminal
CH2: “G37-2” to “G33-3”
CH3: “G37-4” to “G33-3”
Oscilloscope setting CH2: 1 V / DIV
CH3: 1 V / DIV
TIME: 40
µs / DIV
Measurement
condition Ignition switch is at ON position
1. CAN communication line signal (High)
2. CAN communication line signal (Low)
Measurement terminal CH2: “G37-11” to “G33-3”
Oscilloscope setting
CH2: 5 V / DIV
TIME: 2 ms / DIV
Measurement
condition Ignition switch is at ON position
I4RS0AA20020-02
I4RS0AA20021-02
Measurement terminal CH2: “G37-14” to “G33-3”
Oscilloscope settingCH2: 2 V / DIV
TIME: 200 ms / DIV
Measurement
condition Lock or unlock button of
keyless entry transmitter is
pushed
Measurement terminal CH2: “G37-18” to “G33-3”
Oscilloscope setting CH2: 5 V / DIV
TIME: 10 ms / DIV
Measurement
condition Ignition switch is at ON position,
A/C switch or blower speed
selector is at OFF position
I4RS0AA20022-02
I4RS0AA20023-02

Downloaded from www.Manualslib.com manuals search engine 10C-5 Immobilizer Control System:
Diagnostic Information and Procedures
Immobilizer Control System CheckS7RS0BA304001
Diagnostic Trouble Code (DTC) CheckS7RS0BA304002
NOTE
To know how to use SUZUKI scan tool in
detail, refer to its operator’s manual.

Using Scan Tool
1) Turn the ignition switch to OFF position.
2) Connect SUZUKI scan tool to data link connector (DLC) (1) located under instrument panel at driver’s
seat side.
Special tool
(A): SUZUKI scan tool 3) Turn the ignition switch to ON position.
4) Check if any DTC is stored
in ECM according to the
instructions displayed on SUZUKI scan tool.
5) After completing the check, turn ignition switch to
OFF position, and then di sconnect SUZUKI scan
tool from DLC.
Using Diagnosis Connector (If equipped)
Refer to “Without Using Scan Tool (Vehicle Equipped
with Diagnosis Connector)” under “DTC Check in
Section 1A”.
Step Action Yes No
1 Immobilizer indicator lamp check
Turn ignition switch to ON position using ignition key.
Does it immobilizer in dicator lamp come on? Go to Step 2.
Check if DTC P1636
and/or P1638 are
detected by ECM
referring to “Diagnostic
Trouble Code (DTC)
Check”. If detected, go
to applicable DTC diag.
flow. If not detected, go
to “Immobilizer Indicator
Lamp Does Not Come
ON with Ignition Switch
ON and Engine Stop”.
2 Immobilizer indicator lamp check
Does it immobilizer indicato r lamp flashes on and off
continuously in Step 1? Check ECM for DTC
referring to “Diagnostic
Trouble Code (DTC)
Check”. Then, Go to
applicable DTC diag.
flow.Go to Step 3.
3 Engine start check
Start engine using ignition key.
Does engine start? Go to Step 4.
Perform “Engine and
Emission Control
System Check in
Section 1A”.
4 Immobilizer indicator lamp check
Check Immobilizer indicator la mp remains ON after engine
start.
Does immobilizer indicator la mp remains ON after engine
start? Go to “Immobilizer
Indicator Lamp
Remains ON after
Engine Starts”.
Immobilizer system is
good condition. Then go
to “Keyless Start
System Check in
Section 10E”. (Vehicle
equipped with keyless
start system only)
(A)1
I4RS0BA30003-03

Downloaded from www.Manualslib.com manuals search engine Immobilizer Control System: 10C-6
Diagnostic Trouble Code (DTC) ClearanceS7RS0BA304003
NOTE
To know how to use SUZUKI scan tool in
detail, refer to its operator’s manual.

Using Scan Tool
1) Turn the ignition switch to OFF position,
2) Connect SUZUKI scan tool to data link connector (DLC) (1) located under instrument panel at driver’s
seat side.
Special tool
(A): SUZUKI scan tool 3) Turn the ignition switch to ON position.
4) Clear DTC(s) according to the instructions displayed
on SUZUKI scan tool.
5) After completing the clearance, turn the ignition switch to OFF position, and then disconnect SUZUKI
scan tool from DLC.
Using Diagnosis Connector (If Equipped)
Refer to “Without Using Scan Tool” under “DTC
Clearance in Section 1A”.
Diagnostic Trouble Code (DTC) TableS7RS0BA304004
ECM
NOTE
If any DTC other than the above DTCs is detected, refer to “DTC Table in Section 1A”.

(A)1
I4RS0BA30003-03
DTC No. Detecting Item Detecting ConditionImmobilizer
Indicator Lamp
P1614 Transponder Response Error Transponder code in the transponder built in
the ignition key cannot be read through ICM.Flash
P1615 ID Code Does Not Re
gistered (Vehicle
equipped with Keyless Start System only) • While registering the transponder code in
the transponder built in the ignition key in
ECM, the keyless start control module
sent a signal to ECM indicating that the ID
code could not be registered.
• The ID code could not be registered in the keyless start control module or ECM. Flash
P1616 Different Registration ID Codes (Vehicle
equipped with Keyless Start System only) ECM detects different ID codes registered in
ECM and keyless start system.
Flash
P1618 CAN Communication Error (Reception Error
for Keyless Start Control Module) (Vehicle
equipped with Keyless Start System only) Reception error communication data for
keyless start control module is detected for
longer than specified time continuously.
Flash
P1621 Immobilizer Commu nication Line ErrorCommunication error between ICM and
ECM is detected by ECM. Flash
P1622 EEPROM Reading / Writing Error EEPROM in ECM is corrupted.Flash
P1623 Unregistered Transponder Transponder code in the transponder built in
the ignition key is invalid.Flash
P1625 Immobilizer Antenna Error ICM is faulty.Flash
P1636 Immobilizer Information Registration Failure Communication error between ECM and
BCM is detected by ECM.No operation
P1638 Immobilizer Info rmation Mismatched • Communication error between ECM and
BCM is detected by ECM
• Wrong ECM or BCM is used. No operation