2006 SUZUKI SX4 check engine

Downloaded from www.Manualslib.com manuals search engine 9J-4 Hood / Fenders / Doors:
5) Remove door assembly (1) by loosening hinge
mounting bolts (2).
Installation
Reverse removal procedure to install door assembly
noting the following instructions.
• When replacing door, coat replacement door inside
with wax for proper anti-corrosion treatment. Refer to
“Sealant Application Areas in Section 9L”.
• Apply sealant to contact face “A” of hinge (1) and
apply grease to rotating part “B” of hinge (1).
Specified sealant and grease.
“A”: Sealant 99000–31110 (SUZUKI Bond
No.1215)
“B”: Grease 99000–25011 (SUZUKI Super Grease
A) • Tighten front door hinge bolts and door open stopper
bolt to specified torque referring to “Front Door
Assembly Components”.
• When door open stopper (1) is installed, be careful
make sure punch mark (2) comes to the top.
Door open stopper installing direction
Left side door: L punch mark is upward
Right side door: R punch mark is upward
• Adjust door latch striker position referring to “Front
Door Lock Assembly Removal and Installation in
Section 9F”.
• After installation, open and close the door to check
looseness.
1
2
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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

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Immobilizer Indicator Light Remains ON after
Engine Start ..................................................10C-10
DTC P1614: Transponder Response Error .....10C-10
DTC P1615: Steering Lock Unit
Communication Error ....................................10C-11
DTC P1616: Unregistered Keyless Start
Control Module ..............................................10C-12
DTC P1618: Keyless Start Control Module
CAN Communication Error............................10C-13
DTC P1621: Immobilizer Communication
Line Error ......................................................10C-13
DTC P1622: EEPROM Reading / Writing
Error ..............................................................10C-14
DTC P1623: Unregistered Transponder .........10C-14
DTC P1625: Immobilizer Antenna Error..........10C-15
DTC P1636: Immobilizer Information
Registration Failure .......................................10C-15
DTC P1638: Immobilizer Information
Mismatched ...................................................10C-16
Inspection of ICM and Its Circuit .....................10C-17
Repair Instructions ..........................................10C-19
ICM Removal and Installation .........................10C-19
Registration of the Ignition Key .......................10C-19
Procedure after ECM Replacement ................10C-19
Special Tools and Equipment .........................10C-20
Special Tool ....................................................10C-20
Keyless Start System .............................10E-1
General Description ........................................... 10E-1
Keyless Start System Description ..................... 10E-1
Parts and Functions .......................................... 10E-2
Keyless Engine Start Function .......................... 10E-3
Door Lock Function of Keyless Start System .... 10E-4
Operation Area of Remote Controller................ 10E-5
Alarm Function .................................................. 10E-6
CAN Communication System Description......... 10E-6
Schematic and Routing Diagram ...................... 10E-7
Keyless Start System Electric Wiring Circuit
Diagram .......................................................... 10E-7
Diagnostic Information and Procedures .......... 10E-8
Precautions in Diagnosing Troubles ................. 10E-8
Self-Diagnosis Function .................................... 10E-8
Keyless Start System Diagnosis Introduction ... 10E-8
Keyless Start System Check ............................. 10E-9
Customer Questionnaire (Example) ................ 10E-10Key Indicator Light Check ............................... 10E-10
DTC Check...................................................... 10E-11
DTC Table ....................................................... 10E-12
DTC Clearance ............................................... 10E-12
Keyless Start System Symptom Diagnosis ..... 10E-13
Keyless Start System Operation Inspection .... 10E-14
Door Lock Operation (Keyless Start System) . 10E-14
Inspection of Keyless Start Control Module
and Its Circuits .............................................. 10E-14
No DTC Detection After Performing DTC
Check ............................................................ 10E-20
Key Indicator Light Circuit Check (Key
Indicator Light Doesn’t Light when Ignition
Knob Switch is Pushed) ................................ 10E-21
Keyless Start Control Module Power and
Ground Circuit Check .................................... 10E-23
DTC No. 11: Communication Error with
Steering Lock Unit ......................................... 10E-24
DTC No. 13 / No. 14: Release Signal Error
from Steering Lock Unit / Steering Lock Unit
Malfunction .................................................... 10E-25
DTC No. 21 / No. 22: Internal Error of Keyless
Start Control Module (EEPROM Reading
Error) / (EEPROM Writing Error) ................... 10E-25
DTC No. 31: Lost Communication with BCM .. 10E-26
DTC No. 33: Control Module Communication
Bus Off .......................................................... 10E-26
DTC No. 51 / No. 52 / No. 53: Driver Side /
Passenger Side / Rear End Door Request
Switch Failure................................................ 10E-26
Repair Instructions .......................................... 10E-27
Antennas and Request Switches Removal
and Installation .............................................. 10E-27
Front Door (Driver and Passenger Side), Rear
End Door Request Switch Inspection............ 10E-28
Steering Lock Unit Removal and Installation .. 10E-28
Steering Lock Unit Inspection ......................... 10E-28
Front Door Lock Switch Inspection ................. 10E-28
Keyless Start Control Module Removal and
Installation ..................................................... 10E-29
Remote Controller Inspection.......................... 10E-29
Replacement of Remote Controller Battery .... 10E-29
Registration Procedure for Remote Controller
ID Code ......................................................... 10E-30
Keyless Start Registration ............................... 10E-31

Downloaded from www.Manualslib.com manuals search engine 10B-1 Body Electrical Control System:
Control Systems
Body Electrical Control System
Precautions
Precautions in Diagnosing TroubleS6RW0DA200001
• Diagnostic information stored in BCM memory can be cleared as well as checked by using SUZUKI scan tool.
Before using scan tool, read its Operator’s (Instruction) Manual carefully to have good understanding as to what
functions are available and how to use it.
• Be sure to read “Precautions for Electrical Circuit Service in Section 00” before inspection and observe what is
written there.
• Communication of ECM, TCM (A/T model), ABS control module, 4WD control module (if equipped), keyless start
control module (if equipped), combination meter and BCM is established by CAN (Controller Area Network). For
detail of CAN communication for BCM, refer to “CAN Communication System Description”. Therefore, handle CAN
communication line with care referring to “Precaution for CAN Communication System in Section 00”.
General Description
BCM General DescriptionS6RW0DA201001
The Body electrical Control Module (BCM) is
incorporated in junction block. Do not attempt removal of
BCM from junction block as it may cause contact failure.
The BCM incorporates relays and controllers which are
used for the following systems and controls them.
• Power door lock (if equipped)
• Keyless entry (if equipped)
• Door lock function of keyless start system (if
equipped)
• Rear wiper
• Combination meter
• Interior light• Warning buzzer
• Rear end door window defogger and door mirror
heater (if equipped)
• Rear end door opener (if equipped)
• Theft deterrent light
Also, the BCM has a function to cause the interior light
and open door warning light in the combination meter to
turn off when any door is left open for longer than 15
minutes to reduce wasteful battery consumption.
In addition, it is possible to check operation of actuator
which is controlled by BCM by using the output test
function of SUZUKI scan tool to operate actuator
simulatively.
CAN Communication System DescriptionS6RW0DA201002
Refer to “CAN Communication System Description in Section 1A” for CAN communication system description.
BCM communication control data with each control module as follows.
BCM Transmission Data
A/C switch ON signal
Electric load signal
Brake fluid level switch signal
Parking brake switch signal
Diagnostic trouble code (DTC)
Illumination ON signal
Seat belt buckle switch signal
Charging system signal
Engine oil pressure switch signal
Door switch status
Door lock statusECMKeyless Start
Control Module
(if equipped) Combination
Meter
BCMTransmit
DATA
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BCM Reception Data
Theft Deterrent LightS6RW0DA201003
The information display or clock (1) of this vehicle includes a theft deterrent light (2) for the theft preventive purpose.
The BCM makes the theft deterrent light flash at certain intervals after the ignition switch is turned off until it is turned
on again. Also, DTCs stored in BCM can be checked by reading the flashing patterns of the theft deterrent light when
diagnosing troubles.
Security Alarm Description (If Equipped)S6RW0DA201005
Operation
The security alarm system provides a warning of an abnormal condition to those who are around. Its operation is as
follows. While the system is in the stand-by mode (when 20 seconds or more elapsed after the door is locked using a
keyless entry transmitter or door request switch), BCM monitors door lock status, door switch status and battery power
supply voltage. When it detects an abnormal condition (door is unlocked by some way other than using keyless entry
transmitter or door request switch and opened or cut off BCM power supply voltage temporarily), it activates the
warning buzzer (located in BCM), theft deterrent light, hazard warning relay and horn relay.
The security alarm system has 2 selectable modes.
• A mode: No operation
• B mode: Theft deterrent light blinks, hazard warning lights blink, warning buzzer (located in BCM) sounds and horn
sounds
Engine speed signal
Vehicle speed signal Engine coolant temperature signal
Brake pedal switch signal
A/C refrigerant pressure signal
Fuel consumption signal A/C compressor clutch signal
Engine type signal
Transmission range sensor signal
Combination meter spec signal
Ignition knob switch signal
Door lock/unlock request signal
Buzzer request signal
Answer back request signal DATA BCM
Receive
Combination
Meter TCM
(A/T model)Keyless Start
Control Module
(if equipped) ECM
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Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-8
Diagnostic Information and Procedures
BCM Self-Diagnosis FunctionS6RW0DA204001
• BCM monitors conditions of the system components and its circuit with ignition switch turned to ON position. When
an abnormality in the system occurs, the area where that abnormality lies is stored in the memory of EEPROM in
BCM.
• DTC can be checked in either one of following ways.
– DTC can be checked by SUZUKI scan tool (2) connected to DLC (1).
– DTC can be read from flashing pattern of Theft deterrent light (3). Also, DTC is displayed on combination meter
(4) at the same time.
BCM Input / Output Table
3
4
2
1
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Control Input Output
Power door lock system• Key cylinder switch
• Manual door lock switch• Each door lock actuator
Keyless entry system• Key reminder switch
• Keyless entry receiver
• Driver side door switch• Each door lock actuator
• Turn signal and hazard warning relay
• Interior light
Keyless start system
(Door lock function)• Keyless start control module • Each door lock actuator
• Turn signal and hazard warning relay
• Interior light
Rear wiper • Rear wiper INT switch
• Rear wiper LO switch• Rear wiper relay
Combination meter• Tail light switch
• Oil pressure switch
• Parking brake switch
• Driver side seat belt switch
• Brake fluid level switch
• Generator
• Each door switch• Combination meter
Interior light• Each door switch
• Key reminder switch• Interior light
Warning buzzer• Key reminder switch
• Tail light switch
• Driver side door switch
• Keyless start control module (if equipped)
• TCM (reverse signal) (if equipped)• Warning buzzer (located in BCM)

Downloaded from www.Manualslib.com manuals search engine 10B-9 Body Electrical Control System:
Body Electrical Control System CheckS6RW0DA204002
Customer Complaint Analysis
Record details of the problem (failure, complaint) and how it occurred as described by the customer.
For this purpose, use of such a questionnaire form as shown in the figure will facilitate collecting information to the
point required for proper analysis and diagnosis.Rear end door window
defogger• Rear end door window defogger switch
• Generator• Rear end door window defogger
relay
Rear end door opener• Manual door lock switch (unlock signal)
• Key cylinder switch (unlock signal)
• Keyless entry transmitter (unlock signal)
• Rear end door opener switch• Rear end door opener relay
Door lock canceller • SDM (air bag deployment signal) • Each door lock actuator
Theft deterrent light• Key reminder switch • Theft deterrent light (located in
information display or clock) Control Input Output
Step Action Yes No
1) Customer complaint analysis
1) Perform customer complaint analysis.
Was customer complaint analysis performed?Go to Step 2. Perform customer
complaint analysis.
2) Problem symptom confirmation
1) Perform problem symptom confirmation.
Does trouble recur?Go to Step 3. Go to Step 7.
3) DTC check
1) Check DTC.
Is it malfunction code?Go to Step 4. Go to Step 5.
4) Troubleshooting for DTC
1) Check and repair according to DTC diag. flow.
Are check and repair completed?Go to Step 7. Check and repair
malfunction part(s).
5) Body electrical control system symptom diagnosis
1) Perform check and repair referring to “Symptom
Diagnosis” of system having a trouble.
Is there faulty condition?Repair or replace
malfunction part(s).Go to Step 6.
6) Check for intermittent problem
1) Check for intermittent problem.
Is there faulty condition?Repair or replace
malfunction part(s).Go to Step 7.
7) Final confirmation test
1) Clear DTC referring to “DTC Clearance”.
2) Check DTC referring to “DTC Check”.
Is there any DTC?Go to Step 4. End.

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Customer questionnaire (example)
Problem Symptom Confirmation
Check if what the customer claimed in “Customer Questionnaire” is accurately found in the vehicle. If that symptom is
found, check whether the symptom is identified as a failure. (This step should be shared with the customer if possible.)
DTC Check
Check DTC stored in BCM memory referring to “DTC Check”, record it and then clear it referring to “DTC Clearance”.
DTC indicates malfunction that occurred in the system but does not indicate whether it exists now or it occurred in the
past and the normal condition has been restored now. To check which case applies, clear DTC once and check
whether or not any fault exists.
Troubleshooting for DTC
Based on the DTC indicated in Step 3 and referring to applicable DTC flow, locate the cause of the trouble, namely in
a sensor, wire harness, connector, BCM or other part and repair or replace faulty parts.
Body Electrical Control System Symptom Diagnosis
Check the parts or system suspected as a possible cause referring to symptom diagnosis of each system.
Check for Intermittent Problem
Check parts where an intermittent trouble is easy to occur (e.g., wire harness, connector, etc.), referring to
“Intermittent and Poor Connection Inspection in Section 00”.
Final Confirmation Test
Confirm that the problem symptom has gone and the body electrical control system is free from any abnormal
conditions. If what has been repaired is related to the malfunction DTC, check DTC again and confirm that no DTC is
indicated.
Customers name:
Model:
VIN:

Date of issue:
Date Reg:
Date of problem:
Mileage:

Problem Symptoms
Power door lock system does not operate
Keyless entry system does not operate

Rear end door window defogger does not operate
Rear wiper does not operate
Rear end door opener does not operate
Other
Frequency of Occurrence
Continuous / Intermittent ( times a day, a month)
/ Other

Environmental Condition

Weather:
Fine / Cloudy / Rain / Snow / Other

Temperature: (F )
Diagnostic Trouble Code
Normal code / Malfunction code ( )
Warning buzzer does not sound
Interior light does not light
Theft deterrent light does not flush
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