2007 SUZUKI SWIFT aC sensor wiring

Downloaded from www.Manualslib.com manuals search engine Wiring Systems: 9A-102
G-2 Multi Information Display / Accessory Socket System Circuit DiagramS7RS0B910E038
11
BLU/WHT
BLU/WHT
15AACC 2
27
J/C
G17
L28
L44
YG
Multi information display
J/B
BCM
J/B
G34
7
14
RED/YEL
10
BLK/ORN
2
BLK/ORN
15A RADIO
40
G335
WHT/RED
G141
3
J/C
YEL
YEL
G16
4
57
G15
J/C
12L05
WHT/BLK
L46
ACC
Socket
2
1
18
WHT/BLK
BLK
BLK
3 1
C
C
B
B
C
C
GRY
G378
11
"D-4"
RY
YEL/RED
YEL/BLK
2E14
1
8
10E46
A
J/B side connector (BCM)
A
Outside air
temperature sensor
I7RS0B910948-01

Downloaded from www.Manualslib.com manuals search engine 9B-4 Lighting Systems:
Back-Up Light Symptom DiagnosisS7RS0B9204005
Brake Light Symptom DiagnosisS7RS0B9204006
Front Fog Light Symptom Diagnosis (If Equipped)S7RS0B9204007
ConditionPossible cause Correction / Reference Item
Back-up lights do not
light up Bulb(s) blown
Replace bulb(s).
Circuit fuse blown Replace fuse and check for short circuit.
Back-up light switch (M/T model) or
transmission range sensor (A/T model)
faulty Check back-up light switch or transmission
range sensor referring to “Back Up Light
Switch Inspection in Section 5B” or
“Transmission Range Sensor (Shift Switch)
Inspection and Adjustment in Section 5A”.
Wiring or grounding faulty Repair circuit.
Back-up lights stay on Back-up light switch (M/T model) or
transmission range sensor (A/T model)
faulty Check back-up light switch or transmission
range sensor referring to “Back Up Light
Switch Inspection in Section 5B” or
“Transmission Range Sensor (Shift Switch)
Inspection and Adjustment in Section 5A”.
Condition
Possible cause Correction / Reference Item
Brake light do not light up Bulb(s) blown Replace bulb(s).
Circuit fuse blown Replace fuse and check for short circuit.
Brake light switch faulty Check brake light switch referring to “Brake
Light Switch Inspection”.
Wiring or grounding faulty Repair circuit.
Brake light stay on Brake light switch faulty Check or adjust brake light switch referring to
“Brake Light Switch Inspection” or “Stop Light
Switch Adjustment in Section 4A”.
ConditionPossible cause Correction / Reference Item
Only one light does not
light Bulb blown
Replace bulb.
Wiring or grounding faulty Repair circuit.
Front fog lights do not
light Circuit fuse blown
Replace fuse and check for short circuit.
Bulb blown Replace bulb.
Front fog light switch faulty Check front fog light switch referring to “Front
Fog Light Switch Inspection (If Equipped)”.
Front fog light relay faulty Check front fog light relay referring to “Front
Fog Light Relay Inspection (If Equipped)”.
Wiring or grounding faulty Repair circuit.

Downloaded from www.Manualslib.com manuals search engine Instrumentation / Driver Info. / Horn: 9C-6
Component Location
Audio System Component LocationS7RS0B9303001
NOTE
Below figure shows left-hand steering vehicle. For right-hand steering vehicle, parts with (*) are
installed at the opposite side.

Diagnostic Information and Procedures
Speedometer and VSS Symptom DiagnosisS7RS0B9304001
Tachometer Symptom DiagnosisS7RS0B9304002
6
5
(a)
7
1
2
2
3
3
*4
I6RS0C930003-01
1. Radio assembly
3. Rear speaker5. Antenna 7. GPS antenna (if equipped)
2. Front speaker 4. Antenna feeder6. Antenna base : 5 N⋅m (0.5 kgf-m, 4.0 lb-ft)
Condition Possible cause Correction / Reference Item
Speedometer shows no
operation or incorrect
operation Circuit fuse blown
Replace fuse and check for short circuit.
Front wheel speed sensor or sensor ring
faulty (M/T model) Check front wheel speed sensor or sensor ring
referring to “Front / Rear Wheel Speed Sensor
On-Vehicle Inspection in
Section 4E” or “Front
Wheel Encoder On-Vehicle Inspection in
Section 4E”.
Output shaft speed sensor / VSS faulty
(A/T model) Check output shaft
speed sensor / VSS
referring to “Output Shaft Speed Sensor
Inspection in Section 5A”.
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
Tachometer shows no
operation or incorrect
operation Circuit fuse blown
Replace fuse and check for short circuit.
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.

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 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 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 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 Body Electrical Control System: 10B-18
DTC B1141 / DTC B1142 (No. 1141 / No. 1142): Outside Air Temperature (Ambient Temp.) Sensor
Circuit Malfunction
S7RS0BA204009
Wiring Diagram
DTC Detecting Condition and Possible Cause
Flow Test Description
Step 1: Check whether malfunction is in outside air temperature sensor.
Step 2: Check outside air temperature sensor input circuit.
Step 3: Check outside air temperature sensor ground circuit (for DTC B1141).
DTC Troubleshooting
I4RS0AA20010-01
[A]: BCM connector viewed from harness side 3. Junction block assembly
1. Outside air temperature sensor 4. Outside air temperature sensor connector
2. BCM
DTC detecting condition Possible cause
DTC B1141 (DTC No. 1141):
Input signal from outside air temperature sensor is higher
than 4.88 V. • Open in outside air temperature sensor circuit
• Outside air temperature sensor malfunction
• BCM malfunction
DTC B1142 (DTC No. 1142):
Input signal from outside air temperature sensor is lower
than 0.1 V. • Short in outside air temperature sensor circuit
• Outside air temperature sensor malfunction
• BCM malfunction
Step
Action YesNo
1 Check outside air temperature sensor
1) Turn ignition switch to OFF position.
2) Disconnect connector from outside air temperature
sensor.
3) Check outside air temperature sensor for resistance referring to “Outside Air Temperature Sensor Inspection
(If Equipped) in Section 9C”.
Is it in good condition? Go to Step 2.
Replace outside air
temperature sensor.