u0073 SUZUKI SX4 2006 1.G Service User Guide

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DTC U0073: Control Module Communication Bus OffS6RW0D3204022
Refer to “Troubleshooting for CAN-DTC in Section 1A”.
DTC U0100: Lost Communication with ECMS6RW0D3204023
Refer to “Troubleshooting for CAN-DTC in Section 1A”.
DTC U0121: Lost Communication with ABS / ESP® Control ModuleS6RW0D3204024
Refer to “Troubleshooting for CAN-DTC in Section 1A”.
DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control ModuleS6RW0D3204025
Refer to “Troubleshooting for CAN-DTC in Section 1A”.
Inspection of 4WD Control Module and Its CircuitsS6RW0D3204026
4WD control module and its circuits can be checked at coupler connected to 4WD control module by measuring
voltage, pulse signal.
CAUTION!
4WD control module cannot be checked by itself. It is strictly prohibited to connect voltmeter or
ohmmeter to 4WD control module with couplers disconnected from it.

Voltage and Signal Check
1) Check voltage using voltmeter (1) connected to each terminal of couplers.
2) Check signal using oscilloscope (2) connected to each terminal of couplers.
NOTE
• As each terminal voltage is affected by the battery voltage, confirm that it is 11 V or more when
ignition switch is turned ON.
• Pulse signal cannot be measured by voltmeter. It can be measured by oscilloscope.
• Item with asterisk (*) in normal voltage column can be read only by oscilloscope.

12
I4JA01332053-01

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EBD Warning Light (Brake Warning Light) Comes ON SteadyS6RW0D4504010
Wiring Diagram
Referring to “Wiring Diagram” under “ABS Warning Light Does Not Come ON at Ignition Switch ON”.
Circuit Description
EBD warning lamp (brake warning lamp) is controlled by ABS control module and BCM through lamp driver module in
combination meter.
If EBD system is in good condition, ABS control module turns EBD warning lamp ON at the ignition switch ON, keeps
it ON for 2 seconds and then turns it OFF.
EBD warning lamp is turned ON continuously at the following conditions.
• EBD system is an abnormality
• Connector of ABS control module is disconnected
• Parking brake switch is ON
• Brake fluid level is lower than minimum level
The information of parking brake switch and brake fluid level are transmitted from BCM to lamp driver module in
combination meter through CAN communication line.
Troubleshooting
Step Action Yes No
1Parking brake and brake fluid level check
1) Make sure that:
• Parking brake is completely released.
• Brake fluid level is upper than the minimum level.
Are the check results OK?Go to Step 2. Release parking brake
completely and/or
replenish brake fluid.
2ABS warning light operation check
1) Turn ignition switch to ON position.
Does ABS warning light come on steady?Perform “ABS Warning
Light Comes ON
Steady” previously
outlined.Go to Step 3.
3Parking brake switch circuit and brake fluid level switch
circuit check
1) Release parking brake completely, and replenish brake
fluid.
2) Disconnect BCM connectors with ignition switch turned
OFF.
3) Measure resistance between each parking brake switch
circuit, brake fluid level switch circuit and vehicle body
ground.
Are resistance
∞Ω?Go to Step 4. Check each applicable
circuit for short to
vehicle body ground. If
OK then check parking
brake switch and/or
brake fluid level switch.
4DTC check of BCM
1) Connect scan tool to data link connector with ignition
switch turned OFF.
2) Turn ignition switch to ON position and check DTC of
BCM.
Is there DTC U0073?Go to “DTC U0073 (No.
0073): Control Module
Communication Bus Off
in Section 10B”.Go to Step 5.

Downloaded from www.Manualslib.com manuals search engine 5-ii Table of Contents
DTC P1723: Range Select Switch
Malfunction ...................................................... 5A-68
DTC P1878: Torque Converter Clutch
Shudder .......................................................... 5A-69
DTC P2762: Torque Converter Clutch (TCC)
Pressure Control Solenoid Control Circuit
Range / Performance ...................................... 5A-70
DTC P2763: Torque Converter Clutch (TCC)
Pressure Control Solenoid Control Circuit
High ................................................................. 5A-72
DTC P2764: Torque Converter Clutch (TCC)
Circuit Pressure Control Solenoid Control
Circuit Low ...................................................... 5A-74
DTC U0073: Control Module Communication
Bus Off ............................................................ 5A-76
DTC U0100: Lost Communication with ECM /
PCM “A” .......................................................... 5A-76
Inspection of TCM and Its Circuits .................... 5A-76
TCM Power and Ground Circuit Check ............. 5A-80
Brake Interlock System Inspection .................... 5A-81
Repair Instructions ............................................5A-82
Learning Control Initialization ............................ 5A-82
A/T Fluid Level Check ....................................... 5A-82
A/T Fluid Change .............................................. 5A-83
Select Lever Components ................................. 5A-84
Select Lever Assembly Removal and
Installation ....................................................... 5A-84
Select Lever Knob Installation........................... 5A-84
Select Lever Inspection ..................................... 5A-85
“3” Position Switch Inspection ........................... 5A-85
Shift Lock Solenoid Inspection .......................... 5A-85
Shift Lock Solenoid Replacement ..................... 5A-85
Select Cable Components ................................ 5A-86
Select Cable Removal and Installation ............. 5A-86
Select Cable Adjustment ................................... 5A-86
Key Interlock Cable Removal and Installation... 5A-87
Transmission Range Sensor Inspection and
Adjustment ...................................................... 5A-89
Output Shaft Speed Sensor (VSS) Removal
and Installation ................................................ 5A-90
Output Shaft Speed Sensor (VSS) Inspection .. 5A-90
Input Shaft Speed Sensor Removal and
Installation ....................................................... 5A-91
Input Shaft Speed Sensor Inspection................ 5A-91
Transmission Fluid Temperature Sensor
Removal and Installation ................................. 5A-91
Transmission Fluid Temperature Sensor
Inspection ........................................................ 5A-92
Solenoid Valves (Shift Solenoid Valves and
Timing Solenoid Valve) Removal and
Installation ....................................................... 5A-92
Solenoid Valves (Shift Solenoid Valves and
Timing Solenoid Valve) Inspection .................. 5A-94
Pressure Control Solenoid Valves (Pressure
Control Solenoid and TCC Solenoid)
Removal and Installation ................................. 5A-95
Pressure Control Solenoid Valves Inspection ... 5A-96
Transmission Control Module (TCM)
Removal and Installation ................................. 5A-97
A/T Relay Inspection ......................................... 5A-97Differential Side Oil Seal Replacement ............. 5A-98
A/T Fluid Cooler Hoses Replacement ............... 5A-98
Automatic Transaxle Unit Components............. 5A-99
Automatic Transaxle Unit Dismounting and
Remounting ................................................... 5A-100
Automatic Transaxle Assembly Components . 5A-102
Automatic Transaxle Unit Disassembly........... 5A-104
Oil Pump Assembly Components ................... 5A-116
Oil Pump Assembly Disassembly and
Reassembly .................................................. 5A-116
Oil Pump Assembly Inspection ....................... 5A-117
Direct Clutch Assembly Components.............. 5A-119
Direct Clutch Assembly Preliminary Check ..... 5A-119
Direct Clutch Assembly Disassembly and
Reassembly .................................................. 5A-120
Direct Clutch Assembly Inspection.................. 5A-122
Forward and Reverse Clutch Assembly
Components .................................................. 5A-123
Forward and Reverse Clutch Assembly
Preliminary Check ......................................... 5A-123
Forward and Reverse Clutch Assembly
Disassembly and Reassembly ...................... 5A-124
Forward and Reverse Clutch Assembly
Inspection ...................................................... 5A-127
2nd Brake Piston Assembly Components ....... 5A-128
2nd Brake Piston Assembly Disassembly and
Reassembly .................................................. 5A-128
Transaxle Rear Cover (O/D and 2nd Coast
Brake Piston) Assembly Components........... 5A-129
Transaxle Rear Cover (O/D and 2nd Coast
Brake Piston) Assembly Disassembly and
Reassembly .................................................. 5A-130
Transaxle Rear Cover (O/D and 2nd Coast
Brake Piston) Assembly Inspection............... 5A-131
Countershaft Assembly Components.............. 5A-132
Countershaft Assembly Disassembly and
Reassembly .................................................. 5A-132
Valve Body Assembly Components ................ 5A-133
Valve Body Assembly Disassembly and
Reassembly .................................................. 5A-134
Differential Assembly Components ................. 5A-135
Differential Assembly Disassembly and
Reassembly .................................................. 5A-136
Differential Assembly Inspection ..................... 5A-137
Torque Converter Housing Disassembly and
Reassembly .................................................. 5A-138
Transaxle Case Disassembly and
Reassembly .................................................. 5A-140
Automatic Transaxle Unit Inspection and
Adjustment .................................................... 5A-141
Automatic Transaxle Unit Assembly ............... 5A-144
Specifications ...................................................5A-161
Tightening Torque Specifications .................... 5A-161
Special Tools and Equipment .........................5A-162
Recommended Service Material ..................... 5A-162
Special Tool .................................................... 5A-162
Manual Transmission/Transaxle ............ 5B-1
General Description .............................................5B-1
Manual Transaxle Construction .......................... 5B-1

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DTC CheckS6RW0D5104005
NOTE
• There are two types of OBD system
depending on the vehicle specification.For
identification, refer to “Precaution on On-
Board Diagnostic (OBD) System in Section
1A”.
• For Euro-OBD model, the MIL is turned on
when the ECM and/or TCM detect
malfunction(s). Each control module
stores diagnostic information as the
diagnostic trouble code (DTC) in its
memory and outputs the DTC to the scan
tool. Therefore, check both of the control
modules for any DTC with the SUZUKI
scan tool because the DTC stored in ECM
and TCM is not read and displayed at a
time. However, each of the control
modules needs not to be checked with the
CAN communication OBD generic scan
tool because the DTC stored in ECM and
TCM is read and displayed at a time. In
case using CAN communication OBD
generic scan tool, refer to “DTC Table in
Section 1A”.

1) Turn ignition switch to OFF position.
2) Connect scan tool to data link connector (DLC) (1).
Special tool
(A): SUZUKI scan tool (SUZUKI-SDT)
3) Turn ignition switch ON.
4) Read DTC, pending DTC and freeze frame data
according to instructions displayed on scan tool and
print it down. Refer to scan tool operator’s manual
for further details.
If communication between scan tool and TCM is not
possible, check if scan tool is communicable by
connecting it to TCM in another vehicle. If
communication is possible in this case, scan tool is
in good condition. Then check data link connector
and serial data line (circuit) in the vehicle with which
communication was not possible.
5) After completing the check, turn ignition switch off
and disconnect scan tool from data link connector. ) UP1723 Range select switch malfunction“3” position switch ON signal is inputted
although transmission range switch signal is
inputted P, R, N or L. range.1 driving
cycle*1 driving
cycle*
)
U*P1878Torque converter clutch shudderVariation in the output revolution speed of the
specified amplitude and specified cycle is
detected under slip lock-up condition.20 driving
cycles*20 driving
cycles*
) P2762Torque Converter Clutch (TCC)
Pressure Control Solenoid Control
Circuit Range / PerformanceDifference between actual current of TCC
solenoid valve circuit and current of TCC
solenoid valve circuit calculated by ECM is more
than specification.1 driving
cycle1 driving
cycle
) P2763Torque converter clutch pressure
control solenoid control circuit highToo much electric flow is detected on TCC
solenoid valve circuit.1 driving
cycle1 driving
cycle
) P2764Torque converter clutch pressure
control solenoid control circuit lowNo electric flow is detected on TCC solenoid
valve circuit.1 driving
cycle1 driving
cycle
) U0073Control Module Communication
Bus OffTransmission error that is inconsistent between
transmission data and transmission monitor
(CAN bus monitor) data is detected more than
specified time continuously.1 driving
cycle1 driving
cycle
) U0100Lost Communication with ECM /
PCM “A”Receiving error from ECM detected to TCM for
specified time continuously.1 driving
cycle1 driving
cycle DTC No. Detecting itemDetecting condition
(DTC will set when detecting)AB
(A) 1I5RW0C510072-01

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-23
) P0787 Shift / Timing solenoid Control Circuit Low
• Power supply for all solenoid valves is cut.
• Gear position is fixed in 3rd gear.
• Line pressure control at gear shifting is inhibited.
• Look-up function is inhibited to operate. ) P0788 Shift / Timing solenoid Control Circuit High
) P0962Pressure control solenoid control circuit
low
) P0963Pressure control solenoid control circuit
high
) P0973 Shift solenoid-A (No.1) control circuit low
) P0974 Shift solenoid-A (No.1) control circuit high
) P0976 Shift solenoid-B (No.2) control circuit low
) P0977 Shift solenoid-B (No.2) control circuit high
) P0961Pressure Control Solenoid “A” Control
Circuit Range / Performance• Upshifting to 4th gear is inhibited.
• Lock-up function is inhibited to operate.
• Slip controlled lock-up function is inhibited to operate.
• Line pressure control at gear shifting is inhibited.
• Torque reducing request to ECM (torque reduction control)
is inhibited.
• Garage shift control is inhibited.
• Leaning control is inhibited.
) P1702Internal control module memory check
sum error• Power supply for all solenoid valves is cut.
• Gear position is fixed in 3rd gear.
• Line pressure control at gear shifting is inhibited.
• Lock-up function is inhibited to operate.
) P1723 Range select switch malfunction “3” position switch is assumed to be OFF.
) P1878 Torque converter clutch shudder Slip controlled lock-up function is inhibited to operate.
) P2762Torque Converter Clutch (TCC) Pressure
Control Solenoid Control Circuit Range /
Performance• Lock-up function is inhibited to operate.
• Slip controlled lock-up function is inhibited to operate.
• Upshifting to 4th gear is inhibited when Transmission Fluid
Temperature is 150 °C (302 °F) or more.
• Gear position is fixed in 1st gear when vehicle speed is 10
km/h (6 mile/h) or less.
) P2763Torque converter clutch pressure control
solenoid control circuit high• Lock-up function is inhibited to operate.
• Upshifting to 4th gear is inhibited when A/T fluid
temperature is more than 150 °C (302 °F).
• Vehicle speed is slower than 10 km/h (6 mile/h), gear
position is fixed in 1st gear for prevention of engine stall.
) P2764Torque converter clutch pressure control
solenoid control circuit low• Lock-up function is inhibited to operate.
• Upshifting to 4th gear is inhibited when A/T fluid
temperature is more than 150 °C (302 °F).
) U0073 Control module communication bus off• Throttle opening used for line pressure control is assumed
to be 100%.
• Throttle opening used for gear shifting control is assumed
to be 0%.
• Engine revolution is assumed to be 0 RPM.
• After 15 minutes pass from detecting malfunction, engine
coolant temperature is assumed to be 90 °C (194 °F).
• Lock-up function is inhibited to operate.
• Line pressure control at gear shifting is inhibited.
• Torque reducing request to ECM (torque reduction control)
is inhibited.
• Upshifting to 4th gear is inhibited.
• Garage shift control is inhibited.
• Learning control is inhibited. DTC No. Trouble area Fail-safe operation

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-41
Transmission Warning Light Circuit Check – Light Remains “ON” at Ignition Switch ON (Non-Euro-
OBD Model)
S6RW0D5104054
Troubleshooting
Transmission Warning Light Circuit Check – Light Does Not Come “ON” at Ignition Switch ON (Non-
Euro-OBD Model)
S6RW0D5104055
TroubleshootingNon operate TCC (lock-
up) systemFaulty torque converterReplace.
Excessive “N”
→ “D” time
lagFaulty oil pumpInspect. If NG, replace.
Faulty forward clutchInspect. If NG, replace.
Faulty one-way No.2 clutchInspect. If NG, replace.
Leakage from “D” range fluid pressure
circuitOverhaul or replace valve body assembly.
Excessive “N”
→ “R” time
lagFaulty oil pumpInspect. If NG, replace.
Faulty reverse clutchInspect. If NG, replace.
Faulty 1st and reverse brakeInspect. If NG, replace.
Leakage from “R” range fluid pressure
circuitOverhaul or replace valve body assembly.
Poor engine brake in
downshift to “2” rangeFaulty O/D and 2nd coast brakeInspect. If NG, replace.
Poor engine brake in
downshift to “L” rangeFaulty 1st and reverse brakeInspect. If NG, replace. Condition Possible cause Correction / Reference Item
Step Action Yes No
1Diagnostic Trouble Code (DTC) Check
1) Check DTC referring to “DTC Check”.
Is there any DTC(s)?Perform DTC Flow to
repair and retry.Substitute a known-
good TCM and recheck.
If OK, substitute a
known-good
combination meter and
recheck.
Step Action Yes No
1Combination Meter Power Supply Check
1) Turn ignition switch ON.
Does other indicator / warning lights in combination meter
comes ON?Go to Step 2. Repair combination
meter power supply
circuit referring to
“Combination Meter
Circuit Diagram in
Section 9C”.
2 1) TCM power and ground circuit check referring to “TCM
Power and Ground Circuit Check”.
Is it in good condition?Go to Step 3. Repair or replace.
3DTC check
1) Check DTC referring to “DTC Check”.
Is there DTC U0073 or U0100?Go to applicable DTC
diag. flow.Go to Step 4.
4Combination Meter Function Check
1) Turn ignition switch ON.
Does A/T selector position indicator show correct select
lever position?Replace combination
meter.Substitute a known-
good TCM and recheck.

Downloaded from www.Manualslib.com manuals search engine 5A-76 Automatic Transmission/Transaxle:
DTC U0073: Control Module Communication Bus OffS6RW0D5104051
Refer to “Troubleshooting for CAN-DTC in Section 1A”.
DTC U0100: Lost Communication with ECM / PCM “A”S6RW0D5104052
Refer to “Troubleshooting for CAN-DTC in Section 1A”.
Inspection of TCM and Its CircuitsS6RW0D5104044
TCM and its circuits can be checked at TCM wiring connectors by measuring voltage, pulse signal and resistance.
CAUTION!
TCM cannot be checked by itself, it is strictly prohibited to connect voltmeter or ohmmeter to TCM with
connector disconnected from it.

1) Remove TCM (1) from vehicle referring to “Transmission Control Module (TCM) Removal and Installation”.
2) Connect TCM connectors (2) to TCM.
3) Check voltage and/or pulse signal at each terminal of connectors connected using voltmeter (3) and oscilloscope
(4).
NOTE
• As each terminal voltage is affected by battery voltage, confirm that it is 11 V or more when ignition
switch is ON.
• Voltage with asterisk(*) cannot be measured by voltmeter because it is pulse signal. Check it with
oscilloscope if necessary.

Terminal arrangement of TCM coupler (Viewed from harness side)
3
4
12
I4RS0A510021-02
65
16 15 14 13 12 1143
24 23 212210 9 8 721
19 20 18 17 C06
17 16
26 2515 14 65 342
13 12
23 22 2411 10 9
21 20 1987
18 1 C07
I6RW0B510018-01

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DTC B1552: HVAC Control Module Check Sum ErrorS6RW0D7224021
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC B1553: CAN Communication Circuit MalfunctionS6RW0D7224022
DTC Detecting Condition and Trouble Area
DTC TroubleshootingDTC detecting condition Trouble area
Data received by HVAC control module from BCM is erroneous continuously. • BCM
• HVAC control module
Step Action Yes No
1Was “Air Conditioning System Check” performed?Go to Step 2. Go to “Air Conditioning
System Check”.
2Serial communication signal data check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Start engine and select “DATA LIST” mode on scan tool.
3) Check “Refrigerant Pressure”, “Vehicle Speed”, “Coolant
Temp” and “Outside Air Temp” displayed on scan tool.
Are values of A/C refrigerant pressure sensor and outside air
temperature within specified ranges indicated in “Scan Tool
Data”?Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”Substitute a known-
good HVAC control
module and recheck.
If DTC is still detected
substitute a known-
good BCM and recheck.
DTC detecting condition Trouble area
HVAC control module receives error code from BCM continuously. • CAN communication circuit
•BCM
•ECM
• Combination meter
• HVAC control module
Step Action Yes No
1Was “Air Conditioning System Check” performed?Go to Step 2. Go to “Air Conditioning
System Check”.
2DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Check DTC in BCM.
Is DTC U0073 (No.0073), U0100 (No.0100) and/or U0155
(No.0155) detected?Go to applicable DTC
diag. flow.Substitute a known-
good HVAC control
module and recheck.

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 Control 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-1
Theft Deterrent Light ......................................... 10B-2
Security Alarm Description (If Equipped) .......... 10B-2
Schematic and Routing Diagram ...................... 10B-3
Body Electrical Control System Wiring Circuit
Diagram .......................................................... 10B-3
Connector Layout Diagram of BCM and
Junction Block ................................................. 10B-6
Component Location ......................................... 10B-7
BCM and Related System Component
Location .......................................................... 10B-7
Diagnostic Information and Procedures .......... 10B-8
BCM Self-Diagnosis Function ........................... 10B-8
Body Electrical Control System Check.............. 10B-9
Scan Tool Data ............................................... 10B-11
DTC Table ....................................................... 10B-13
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 Malfunction ................ 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-20
DTC U0073 (No. 0073): Control Module
Communication Bus Off ................................ 10B-20
DTC U0100 (No. 0100): Lost Communication
with ECM....................................................... 10B-20DTC U0101 (No. 0101): Lost Communication
with TCM ....................................................... 10B-20
DTC U0155 (No. 0155): Lost Communication
with Instrument Panel Cluster (IPC) Control
Module .......................................................... 10B-20
DTC U1144 (No. 1144): Lost Communication
with Keyless Start Control Module ................ 10B-20
Inspection of BCM and Its Circuits .................. 10B-21
Repair Instructions ..........................................10B-28
BCM (Included in Junction Block) Removal
and Installation .............................................. 10B-28
Security Alarm Mode Selection Procedure (If
Equipped) ...................................................... 10B-29
Outside Air Temperature Sensor Removal
and Installation .............................................. 10B-29
Outside Air Temperature Sensor Inspection ... 10B-29
Special Tools and Equipment .........................10B-29
Special Tool .................................................... 10B-29
Immobilizer Control System ................. 10C-1
Precautions.........................................................10C-1
Precautions in Diagnosing Troubles .................10C-1
Precaution in Replacing ECM ...........................10C-1
Precaution in Replacing Ignition Key ................10C-1
Precautions in Handling Immobilizer Control
System ............................................................10C-1
General Description ...........................................10C-2
Immobilizer Control System Introduction ..........10C-2
On-Board Diagnostic System Description
(Self-diagnosis Function)................................10C-2
Schematic and Routing Diagram ......................10C-3
Immobilizer Control System Wiring Circuit
Diagram...........................................................10C-3
Component Location .........................................10C-5
Immobilizer Control System Components
Location...........................................................10C-5
Diagnostic Information and Procedures ..........10C-5
Immobilizer Control System Check ...................10C-5
DTC Check........................................................10C-6
DTC Clearance .................................................10C-6
DTC Table .........................................................10C-7
Scan Tool Data .................................................10C-8
Immobilizer Indicator Light Does Not Come
ON with Ignition Switch ON and Engine Stop ..10C-9

Downloaded from www.Manualslib.com manuals search engine 10B-13 Body Electrical Control System:
DTC TableS6RW0DA204004
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 b1141Outside air temperature
(ambient temperature)
sensor circuit openSensor output voltage too high
) B1142 1142 b1142Outside air temperature
(ambient temperature)
sensor circuit short to
groundSensor output voltage too low
) B1150 1150 b1150Air bag communication
circuit malfunctionAir bag communication circuit
open or short to ground
) B1157 1157 b1157Air bag deployment signal
inputAir bag deployment signal
inputted
) B1170 1170 b1170 EEPROM access error Memory error
) U0073 0073 U0073Control module
communication bus offTransmitting and receiving
error of BCM for specified time
continuously
) U0100 0100 U0100Lost communication with
ECMReceiving error of BCM from
ECM for specified time
continuously
) U0101 0101 U0101Lost communication with
TCMReceiving error of BCM from
TCM for specified time
continuously
) U0155 0155 U0155Lost communication with
instrument panel cluster
(IPC) control moduleReceiving error of BCM from
combination meter for
specified time continuously
) U1144 1144 U1144Lost communication with
keyless start control moduleReceiving error of BCM from
keyless start control module
for specified time continuously