2006 SUZUKI SWIFT BCM

Downloaded from www.Manualslib.com manuals search engine 9C-9 Instrumentation / Driver Info. / Horn:
A/T Shift Position Indicator Symptom Diagnosis (A/T Model)S7RS0B9304009
Charge Warning Light Symptom DiagnosisS7RS0B9304010
Main Beam (High Beam) Indicator Symptom DiagnosisS7RS0B9304011
ConditionPossible cause Correction / Reference Item
All A/T shift position
indicator does not light up Circuit fuse blown
Replace fuse and check for short circuit.
Transmission range sens or (shift switch)
faulty Check transmission range sensor referring to
“Transmission Range Sensor (Shift Switch)
Inspection and Adjustment in Section 5A”.
Wiring and/or grounding faulty Repair as necessary.
Combination meter faulty Replace combination meter.
TCM faulty Replace after making sure that none of above
parts is faulty.
ConditionPossible cause Correction / Reference Item
Charge warning light
does not come ON Circuit fuse blown
Replace fuse and check for short circuit.
Wiring and/or grounding faulty Repair as necessary.
Combination meter faulty Replace combination meter.
BCM faulty Replace after making sure that none of above
parts is faulty.
Charge warning light stay
ON Charging system faulty
Check charging system.
Wiring and/or grounding faulty Repair as necessary.
Combination meter faulty Replace combination meter.
BCM faulty Replace after making sure that none of above
parts is faulty.
ConditionPossible cause Correction / Reference Item
Main beam (high beam)
indicator does not come
ON Circuit fuse blown
Replace fuse and check for short circuit.
Combination switch faulty Check combination switch referring to
“Headlight Switch (in Lighting Switch)
Inspection in Section 9B”.
Wiring and/or grounding faulty Repair as necessary.
Combination meter faulty Replace combination meter.
Main beam (high beam)
indicator stay ON Combination switch faulty
Check combination switch referring to
“Headlight Switch (in Lighting Switch)
Inspection in Section 9B”.
Wiring and/or grounding faulty Repair as necessary.
Combination meter faulty Replace combination meter.

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Warning Buzzer Circuit Symptom DiagnosisS7RS0B9304012
NOTE
• Use of SUZUKI scan tool makes it easy to check wh ether a faulty condition is on the input side or
output side of BCM. For checking procedure, re fer to “Diagnosis Using Output Test Function of
SUZUKI Scan Tool” under “Scan Tool Data in Section 10B”.
• Check each part in the order from the top of the following list.

Cigarette Lighter Symptom Diagnosis (If Equipped)S7RS0B9304013
Horn Symptom DiagnosisS7RS0B9304014
Condition Possible cause Correction / Reference Item
Warning buzzer shows no
sounding Circuit fuse blown
Replace fuse and check for short circuit.
Driver side door switch faulty Check driver side door switch referring to
“Door Switch (Front / Rear Door) Inspection”.
Lighting switch faulty Check lighting switch referring to “Headlight
Switch (in Lighting Switch) Inspection in
Section 9B”.
Key reminder switch faulty Check key reminder switch referring to
“Ignition Switch Inspection”.
Seat belt switch faulty (if equipped) Check seat belt switch referring to “Front Seat
Belt Inspection in Section 8A”.
Wiring and/or grounding faulty Repair as necessary.
BCM faulty Replace after making sure that none of above
parts is faulty.
ConditionPossible cause Correction / Reference Item
Cigarette lighter shows
no operation Circuit fuse blown
Replace fuse and check for short circuit.
Cigarette lighter faulty Check cigarette lighter.
Ignition switch faulty Check ignition switch referring to “Ignition
Switch Inspection”.
Wiring and/or grounding faulty Repair as necessary.
ConditionPossible cause Correction / Reference Item
Horn does not operate Circuit fuse blown Replace fuse and check for short circuit.
Horn switch faulty Check horn switch.
Horn relay faulty Check horn relay referring to “Horn Relay
Inspection”.
Wiring and/or grounding faulty Repair as necessary.
Horn faulty Check horn referring to “Horn Inspection”.

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.

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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 Instrumentation / Driver Info. / Horn: 9C-20
Rear Speaker Removal and InstallationS7RS0B9306019
Removal
1) Remove rear door trim referring to Step 1) to 3) of “Rear Door Glass Removal and Installation in
Section 9E”.
2) Remove 3 rear speaker mounting screws (1).
3) Remove rear speaker (2) from rear door panel (3).
4) Disconnect rear speaker coupler from rear speaker (2).
Installation
Reverse removal procedure.
Horn Removal and InstallationS7RS0B9306020
Removal 1) Disconnect negative (–) cable at battery.
2) Remove front bumper referring to “Front Bumper and Rear Bumper Components in Section 9K”.
3) Disconnect horn connector (1).
4) Remove horn (2).
Installation
Reverse removal procedure.
Horn InspectionS7RS0B9306021
1) Disconnect negative (–) cable at battery.
2) Remove front bumper referring to “Front Bumper and Rear Bumper Components in Section 9K”.
3) Disconnect horn connector (1).
4) Connect battery positive (+) terminal to horn
connector (2) and negative (–) terminal to body
ground.
If horn is not sounding, replace horn.
Horn Relay InspectionS7RS0B9306022
1) Disconnect negative (–) cable at battery.
2) Remove junction block assembly referring to “BCM (Included in Junction Bl ock Assembly) Removal and
Installation in Section 10B”.
3) Remove horn relay (1) from junction block assembly (2).
4) Check that there is no continuity between terminal “c” and “d”. If there is continuity, replace relay.
5) Check that there is continuity between terminals “c” and “d” when a 12 V battery is connected to
terminals “a” and “b”. If malfunction is found, replace
it with a new one.
1
2
3
I4RS0A930027-01
12I4RS0A930028-01
1 2I4RS0A930030-01
1
2
I4RS0B930018-01
ba
c
d c
a
d
bI3JA01920006-01

Downloaded from www.Manualslib.com manuals search engine 9D-1 Wipers / Washers:
Body, Cab and Accessories
Wipers / Washers
Diagnostic Information and Procedures
Front Wiper and Washer Symptom DiagnosisS7RS0B9404001
Rear Wiper and Washer Symptom DiagnosisS7RS0B9404002
ConditionPossible cause Correction / Reference Item
Wiper malfunctions Circuit fuse blown Replace fuse and check for short circuit.
Wiper motor faulty Check wiper motor referring to “Windshield
Wiper Motor Inspection”.
Combination switch (wiper switch) faulty Check wiper switch referring to “Windshield
Wiper and Washer Switch Inspection”.
Wiring or grounding faulty Repair circuit.
Washer malfunctions Washer hose or nozzle clogged Clean or repair clogged hose or nozzle.
Circuit fuse blown Replace fuse and check for short circuit.
Washer motor faulty Check washer motor referring to “Washer
Pump Inspection”.
Combination switch (washer switch)
faulty Check washer switch referring to “Windshield
Wiper and Washer Switch Inspection”.
Wiring or grounding faulty Repair circuit.
ConditionPossible cause Correction / Reference Item
Wiper malfunctions
NOTE
• Use of SUZUKI scan tool makes it easy to
check whether a faulty
condition is on the
input side or output
side of BCM. For
checking procedure,
refer to “Diagnosis
Using Output Test
Function of SUZUKI
Scan Tool” under
“Scan Tool Data in
Section 10B”.
• Check each part in the order from the top of
the following list.

Circuit fuse blown Replace fuse and check for short circuit.
Wiper motor faulty Check wiper motor referring to “Rear Wiper
Motor Inspection”.
Combination switch (wiper switch) faulty Check wiper switch referring to “Rear Wiper
and Washer Switch Inspection”.
Rear wiper relay faulty Check rear wiper relay referring to “Rear Wiper
Relay Inspection”.
Wiring or grounding faulty Repair circuit.
BCM faulty Replace after making sure that none of above
parts is faulty.
Washer malfunctions Washer hose or nozzle clogged Clean or repair clogged hose or nozzle.
Circuit fuse blown Replace fuse and check for short circuit.
Washer motor faulty Check washer motor referring to “Washer
Pump Inspection”.
Combination switch (washer switch)
faulty Check washer switch referring to “Rear Wiper
and Washer Switch Inspection”.
Wiring or grounding faulty Repair circuit.

Downloaded from www.Manualslib.com manuals search engine 9D-3 Wipers / Washers:
Washer Tank and Washer Pump Removal and
Installation
S7RS0B9406002
Removal1) Disconnect negative (–) cable at battery.
2) Remove front bumper referring to “Front Bumper and Rear Bumper Components in Section 9K”.
3) Remove grommet (1) and upper part (2) of washer tank.
4) Remove washer tank attaching bolts (4).
5) Disconnect washer pump lead wire couplers and hoses.
6) Remove washer tank (1).
7) Remove windshield washer pump (2) and rear washer pump (3) from washer tank (1). Installation
Install washer tank and washer pump by reversing
removal procedure, noting the following instructions.
• Connect washer pump connector(s) securely.
• Tighten washer tank bolts to specified torque.
Tightening torque
Washer tank bolt (a): 4 N·m (0.4 kgf-m, 3.0 lb-ft)
Washer Pump InspectionS7RS0B9406003
1) Connect battery positive (+) and negative (–) terminals to pump (+) and (–) terminals respectively.
2) Check windshield and rear washer pumps for
operation.
If pump does not operate, replace washer pump.
1. Windshield wiper blade 8. Washer pump for rear washer[A]: Junction block assembly viewed
from relay side
2. Windshield wiper arm 9. Washer tank: 16 N⋅m (1.6 kgf-m, 11.5 lb-ft)
3. Windshield wiper motor 10. Washer hose : 8 N⋅m (0.8 kgf-m, 6.0 lb-ft)
4. Windshield wiper link 11. Washer nozzle : 5 N⋅m (0.5 kgf-m, 4.0 lb-ft)
5. Rear wiper arm with blade assembly 12. Wiper switch : 4 N⋅m (0.4 kgf-m, 3.0 lb-ft)
6. Rear wiper motor 13. Rear wiper relay
7. Washer pump for windshield washer 14. Junction block assembly
: BCM cannot be removed from junction block.
1
2
I4RS0A940002-01
2 1 4
3
I4RS0A940003-01
(a)
I4RS0A940004-01
(–)
(+)
I4RS0A940005-01

Downloaded from www.Manualslib.com manuals search engine Wipers / Washers: 9D-10
Rear Wiper Relay Removal and InstallationS7RS0B9406012
Removal1) Disconnect negative (–) cable at battery.
2) Remove junction block assembly referring to “BCM (Included in Junction Block Assembly) Removal and
Installation in Section 10B”.
3) Remove rear wiper relay.
Installation
Reverse removal procedure for installation.
Rear Wiper Relay InspectionS7RS0B9406013
1) Check that there is no continuity between terminal “3” and “4”. If there is continuity, replace relay.
2) Connect battery positive (+ ) terminal to terminal “2”
of relay.
3) Connect battery negative (–) terminal to terminal “1” of relay.
4) Check continuity between terminal “3” and “4”. If
there is no continuity when relay is connected to the
battery, replace relay.
Specifications
Tightening Torque SpecificationsS7RS0B9407001
NOTE
The specified tightening torque is also described in the following.
“Wipers and Washers Components”

Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”.
“4”
“2” “1”
“3”
I4RS0A940028-01
Fastening part Tightening torque
Note
N ⋅mkgf-mlb-ft
Washer tank bolt 4 0.4 3.0 )
Windshield wiper bolt 8 0.8 6.0 )
Windshield wiper arm nut 16 1.6 11.5 )
Rear wiper motor mounting bolt 8 0.8 6.0 )
Rear wiper nut 5 0.5 4.0 )
Rear wiper arm nut 8 0.8 6.0 )