2008 SUZUKI SWIFT ambient

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-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 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.