2008 SUZUKI SWIFT Combination wiring

Downloaded from www.Manualslib.com manuals search engine 9C-7 Instrumentation / Driver Info. / Horn:
Engine Coolant Temperature (ECT) Meter Symptom DiagnosisS7RS0B9304003
Fuel Meter Symptom DiagnosisS7RS0B9304004
Low Fuel Warning Light Symptom DiagnosisS7RS0B9304005
NOTE
Confirm that fuel meter is in good condition before referring to the following possible causes.
• When fuel level sensor circuit is open or short, fuel meter indicates empty even if fuel tank does not empty.
• The low fuel warning light comes ON when fu el level is lower than specification below.

Low fuel warning light operation:
ConditionPossible cause Correction / Reference Item
Engine coolant
temperature (ECT) meter
shows no operation or
incorrect operation Circuit fuse blown
Replace fuse and check for short circuit.
ECT sensor faulty Check ECT sensor referring to “ECT Sensor
Inspection in Section 1C”.
Wiring and/or grounding faulty Repair as necessary.
Combination meter faulty Replace combination meter.
ECM faulty Replace after making sure that none of above
parts is faulty.
ConditionPossible cause Correction / Reference Item
Fuel meter shows no
operation or incorrect
operation Circuit fuse blown
Replace fuse and check for short circuit.
Fuel level sensor faulty Check fuel level sensor referring to “Fuel Level
Sensor Inspection”.
Wiring and/or grounding faulty Repair as necessary.
Combination meter faulty Replace combination meter.
Low fuel warning light operation: Fuel amount: Resistance of fuel level sensor:
ON Approx. 6.5 liter Approx. 251 Ω
Condition Possible cause Correction / Reference Item
Low fuel warning light
does not come ON when
fuel level is lower than
specification Circuit fuse blown
Replace fuse and check for short circuit.
Fuel level sensor faulty Check fuel level sensor referring to “Fuel Level
Sensor Inspection”.
Wiring and/or grounding faulty Repair as necessary.
Combination meter faulty Replace combination meter.
Low fuel warning light
comes ON steady Low fuel
Refill fuel.
Fuel level sensor faulty Check fuel level sensor referring to “Fuel Level
Sensor Inspection”.
Wiring and/or grounding faulty Repair as necessary.
Combination meter faulty Replace combination meter.

Downloaded from www.Manualslib.com manuals search engine Instrumentation / Driver Info. / Horn: 9C-8
Oil Pressure Warning Light Symptom DiagnosisS7RS0B9304006
Brake and Parking Brake Warning Light Symptom DiagnosisS7RS0B9304007
Seat Belt Reminder Light Symptom Diagnosis (If Equipped)S7RS0B9304008
Condition Possible cause Correction / Reference Item
Oil pressure warning light
does not light up when
ignition switch is turned
to ON position at engine
off Circuit fuse blown
Replace fuse and check for short circuit.
Oil pressure switch faulty Check oil pressure switch referring to “Oil
Pressure Switch Inspection”.
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.
Oil pressure warning light
stays ON Oil pressure switch faulty
Check oil pressure switch referring to “Oil
Pressure Switch Inspection”.
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
Brake warning light does
not light up when brake
fluid level is low or
parking brake is pulled up
or for 5 seconds after
turning ON ignition switch Circuit fuse blown
Replace fuse and check for short circuit.
Brake fluid level switch faulty Check brake fluid level switch referring to
“Brake Fluid Level Switch Inspection”.
Parking brake switch faulty Check parking brake switch referring to
“Parking Brake Switch Inspection”.
ABS system faulty Refer to “ABS Check in Section 4E”.
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.
Brake warning light stays
ON Brake fluid level switch faulty
Check brake fluid level switch referring to
“Brake Fluid Level Switch Inspection”.
Parking brake switch faulty Check parking brake switch referring to
“Parking Brake Switch Inspection”.
EBD system faulty Refer to “EBD Warning Light (Brake Warning
Light) Check in Section 4E”.
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
Seat belt reminder light
does not light up Circuit fuse blown
Replace fuse and check for short circuit.
Seat belt switch faulty Check seat belt switch referring to “Front Seat
Belt Inspection in Section 8A”.
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.
Seat belt reminder light
stays ON Seat belt switch faulty
Check seat belt switch referring to “Front Seat
Belt Inspection in Section 8A”.
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.

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.

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 10B-21 Body Electrical Control System:
DTC B1170 (No. 1170): EEPROM Access ErrorS7RS0BA204012
DTC Detecting Condition and Possible Cause
DTC Troubleshooting
NOTE
Before performing steps below, be sure to perform “Body Electrical Control System Check”.

1) Ignition switch OFF.
2) Replace BCM.
3) Repeat BCM Check Flow Table.
DTC U0155 (No. 0155): Lost Communication with Instrument Panel Cluster (IPC) Control ModuleS7RS0BA204019
Wiring Diagram
ABS model DTC detecting condition Possible cause
Data write error or check sum error. BCM malfunction
REDWHTE03-6E03-12
6
3
7
REDWHT
1
[B]
[A]
G37E46
1234567
1234567
8910
11
8910
11
121314 121314
151617
18
19202122 [D]65
1615 141312 11 43
2423 2122 10 9 8 7
21
1920 1817
C3417 16
26 2515 14
65 3
42
13 12
23 2224 1110 9
212019 87
18
1
C35
[E]
REDWHTC37-13C37-12REDWHTC34-17C34-7
2
12345678910
11
141516
36 34 33 32 31 30 29 24 23
37
181920
[C] [F]
G49
E23-3E23-18
4
REDWHTG28-7G28-9REDWHTG49-19G49-18
5
REDWHTE03-10E03-8
G37-4G37-2
REDWHTE46-1E46-2REDWHTREDWHTG28-8G28-10
E03
15
16
17
18
19
20
21
22
23
24
25 2
3
4
5
6
7
8
9
10
11
12
1
13
14
26
E23C37
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
5557 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
4042 39 38
44
45 43 41 33 1
1213
238
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
5557 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
4042 39 38
44
45 43 41 331
1213
238
G281234567
8
910111213141516
1718
19
20
212223242526272829303132
RED/BLKWHT/BLKG37-3G37-1+BB
I7RS0BA20004-01
[A]: BCM connector (viewed from harness side) 1. ECM
[B]: ECM connector (viewed from harness side) 2. TCM (A/T model)
[C]: Combination meter connector (viewed from harness side) 3. BCM
[D]: TCM connector (viewed from harness side) 4. Combination meter
[E]: Keyless start control module connector (viewed from harness side) 5. Keyless start control module (if equipped)
[F]: ABS control module connector (viewed from harness side) 6. ABS control module
7. Data link connector (DLC)

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-24
DTC U1073 (No. 1073): Control Module Communication Bus OffS7RS0BA204014
Wiring Diagram
Refer to “DTC U0155 (No. 0155): Lost Communication with Instrument Panel Cluster (IPC) Control Module”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure 1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Start engine and run it for 1 min. or more.
4) Check DTC.
DTC Troubleshooting DTC detecting condition Trouble area
Transmission error that is inconsistent between transmission data and
transmission monitor (CAN bus monitor) data is detected more than 7
times continuously.
(1 driving detection logic) • CAN communication circuit
• Combination meter
• BCM (included in junction block
assembly)
• TCM (A/T model)
• ABS/ESP ® control module
• Keyless start control module (if equipped)
•ECM
• Steering angle sensor (if equipped)
Step Action YesNo
1 Control module connector check
1) Check connection of connectors of all control modules
communicating by means of CAN.
2) Recheck DTC.
Is DTC U1073 detected? Go to Step 2.
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
2 CAN communication circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors of all control modules
communicating by means of CAN.
3) Check CAN communication circuit between control modules for open, short and high resistance.
Is each CAN communication circuit in good condition? Go to Step 3.
Repair circuit.

Downloaded from www.Manualslib.com manuals search engine 10B-29 Body Electrical Control System:
DTC U1144 (No. 1144): Lost Communication with Keyless Start Control ModuleS7RS0BA204017
Wiring Diagram
Refer to “DTC U0155 (No. 0155): Lost Communication with Instrument Panel Cluster (IPC) Control Module”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure 1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Start engine and run it for 1 min. or more.
4) Check DTC.
DTC Troubleshooting DTC detecting condition Trouble area
BCM can not receive data sent by CAN from keyless start control module for
longer than specified time continuously. • CAN communication circuit
• Combination meter
• Keyless start control module
• BCM (included in junction block
assembly)
Step Action YesNo
1 DTC check of BCM
Is DTC U1144 (No. 1144) and DTC U1073 (No. 1073)
detected together? Go to “DTC U1073 (No.
1073): Control Module
Communication Bus
Off”.Go to Step 2.
2 DTC check of keyless start control module
1) Check keyless start co ntrol module for DTC.
Is DTC No. 33 detected? Go to “DTC No. 33:
Control Module
Communication Bus Off
in Section 10E”.Go to Step 3.
3 Control module connector check
1) Check connection of connectors of all control modules
communicating by means of CAN.
2) Recheck BCM for DTC.
Is DTC U1144 (No. 1144) detected? Go to Step 4.
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
4 CAN communication circuit check
1) Disconnect connectors from BCM, combination meter
and keyless start control module.
2) Check CAN communication circuit for open, short and high resistance.
• Between BCM and combination meter
• Between combination meter and keyless start control module
Is each CAN communication circuit in good condition? Go to Step 5.
Repair circuit.
5 CAN communication circuit check
1) Disconnect connectors of all control modules
communicating by means of CAN.
2) Check CAN communication circuit between control modules other than Step 4 for open, short and high
resistance.
Is each CAN communication circuit in good condition? Go to Step 6.
Repair circuit.

Downloaded from www.Manualslib.com manuals search engine Immobilizer Control System: 10C-4
Schematic and Routing Diagram
Immobilizer Control System Wiring Circuit DiagramS7RS0BA302001
NOTE
For more details about power supply and ground circuits for ECM, BCM, keyless start control module,
ABS control module and combination meter, refer to “System Ci rcuit Diagram in Section 9A”.

BLK/WHT
BLK/ORN12V
G24-1
G24-2
12V
5V
12V
12VYEL/RED
YEL/BLK
G24-4
G24-3
12V
5V
BRN
BRN/YEL
BLK/YEL
1
2
2 2
2
34
2 6712
11
9
14
12
3
4
G24
[A]
5
6
REDWHT
G42-20 G42-29 G42-30
G04-3 G04-7 G04-8
WHT/RED
5V
5V
5
G28-9 G28-7
G42-18G42-19
E23-13
E23-28
IG1
PPL/WHT 10
PPL/WHT
PPL/WHT
E23-5
RED
WHT**E85-46E23-18
E23-3
RED
WHT
E46-1
E46-2
WHT
RED
G37-2
G37-4
WHT/BLK
RED/BLK
G37-1
G37-3
12V
E46-9
G37-5
13
8
**E85-42
**E85-13
**E85-44
G28-10
G28-8
*E03-8 *E03-10
*E03-12
*E03-6
I7RS0BA30001-01
[A]: Immobilizer control module connector (harness side vi ew) 6. Immobilizer control module (ICM) 12. Steering lock unit
1. Battery 7. ECM 13. ABS/ESP ® control module
2. Fuse 8. BCM 14. CAN junction connector (ESP ® model)
3. Ignition switch 9. Combination meter *: ABS model
4. Junction block assembly 10. Immobilizer indicator lamp **: ESP ® model
5. Data link connector (DLC) 11. Keyless start control module