2006 SUZUKI SX4 heater

Downloaded from www.Manualslib.com manuals search engine 9E-5 Glass / Windows / Mirrors:
Door Mirror Heater Symptom Diagnosis (If Equipped)S6RW0D9504004
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.

Repair Instructions
Windshield ComponentsS6RW0D9506001
Condition Possible cause Correction / Reference Item
All door mirror heaters
does not operateCircuit fuse blownReplace fuse and check for short circuit.
Rear end door window defogger switch
faultyCheck rear end door window defogger switch
referring to “Rear End Door Window Defogger
Switch Inspection”.
Rear end door window defogger relay
faultyCheck rear end door window defogger relay
referring to “Rear End Door Window Defogger
Relay Inspection”.
Wiring or grounding faultyRepair circuit.
BCM faultyReplace after making sure that none of above
parts is faulty.
Only one door mirror
heater does not operateDoor mirror heater faultyCheck door mirror heater refiring to “Door
Mirror Heater Inspection (If Equipped)”.
Wiring or grounding faultyRepair circuit.
3 31
2
44
4
I5RW0A950001-02
1. Windshield glass 3. Windshield glass stopper : Do not reuse.
2. Windshield molding 4. Spacer

Downloaded from www.Manualslib.com manuals search engine Glass / Windows / Mirrors: 9E-26
Door Mirror Heater Inspection (If Equipped)S6RW0D9506027
1) Remove door trim referring to step 1) to 3) of “Front
Door Glass Removal and Installation”.
2) Disconnect door mirror connector (1).
3) Check for continuity between terminals “a” and “b”.
If no continuity, replace outside mirror.
Door Mirror Heater Switch Inspection (If
Equipped)
S6RW0D9506028
Door mirror heater is operated by rear end door window
defogger switch. Check rear end door window defogger
switch referring to “Rear End Door Window Defogger
Switch Inspection”.
Special Tools and Equipment
Recommended Service MaterialS6RW0D9508001
NOTE
Required service material is also described in the following.
“Front Door Window Components”
“Rear Door Window Components”

a
b1I7RW01950008-01
Material SUZUKI recommended product or Specification Note
Grease SUZUKI Super Grease A P/No.: 99000–25011) / )

Downloaded from www.Manualslib.com manuals search engine 9G-1 Seats:
Body, Cab and Accessories
Seats
Diagnostic Information and Procedures
Front Seat Heater Symptom Diagnosis (If Equipped)S6RW0D9704001
Condition Possible cause Correction / Reference Item
Both seat back and
cushion do not become
hot although seat heater
switch is ON positionWiring or grounding faultyRepair.
“SEAT HTR” fuse blownReplace fuse to check for short.
Seat heater switch faultyReplace switch.
Seat heater circuit in seat back and/or
seat cushion faultyReplace heater front back and/or heater front
cushion.
Only seat back does not
become hot although seat
heater switch is ON
positionWiring faultyRepair.
Seat heater circuit in seat back and/or
seat cushion faultyReplace heater front back and/or heater front
cushion.
Only seat cushion does
not become hot although
seat heater switch is ON
positionWiring faultyRepair.
Seat heater circuit in seat cushion faultyReplace heater front cushion.

Downloaded from www.Manualslib.com manuals search engine 9G-3 Seats:
Front Seat Removal and InstallationS6RW0D9706002
Removal
1) Disable air bag system referring to “Disabling Air
Bag System in Section 8B”.
2) Disconnect seat harness coupler and side air bag
coupler, if equipped.
3) Remove 4 mounting bolts to remove seat assembly.
4) Disassemble and repair seat as necessary.
Installation
Reverse removal procedure to install front seat.
• Torque to specifications as shown in “Front Seat
Components”.
• Enable air bag system referring to “Enabling Air Bag
System in Section 8B”.
Front Seat Heater Switch (Driver and Passenger
Side) Inspection (If Equipped)
S6RW0D9706005
1) Confirm that ignition switch is OFF position.
2) Remove console box.
3) Disconnect seat heater switch coupler and remove
seat heater switch.
4) Check for continuity between terminals at each
switch position as shown below. If check result is not
as specified, replace.
Front Seat Heater Wire Inspection (If Equipped)S6RW0D9706006
1) Confirm that seat heater switch is OFF position.
2) Disconnect coupler of seat heater under the seat
cushion.
3) Measure resistance between terminals as shown
below. If resistance is out of specification, replace
faulty seat cushion and/or seat back including seat
heater.
Seat heater circuit resistance
Seat cushion side [A] (between terminal “B” and
“C”, between terminal “A” and “C”): 4.7 – 5.7 Ω
(at 20 °C, 68 °F)
Seat back side [B] (between terminal “F” and
“D”: 10.7 – 13.1 Ω (at 20 °C, 68 °F)
I5RW0B970001-02
1. Heater wire [A]: Seat cushion side
2. Thermostat [B]: Seat back side
ABCDE F [A] [B]
11
2
I5JB0A970002-01

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
I6RW0CA20001-01

Downloaded from www.Manualslib.com manuals search engine 10B-5 Body Electrical Control System:
1. BCM 23. Brake fluid level switch 45. Passenger side door lock actuator (if equipped)
2. Rear end door opener actuator (if equipped) 24. Parking brake switch 46. Rear door lock actuator (if equipped)
3. Rear end door opener relay (if equipped) 25. Door key cylinder switch (included in door lock
actuator) (if equipped)47. Hazard warning switch
4. Rear washer motor 26. Manual door lock switch (if equipped) 48. Turn signal and hazard warning relay
5. Rear wiper and washer switch 27. Rear end door opener switch (if equipped) 49. To turn signal light
6. Outside air temperature sensor (if equipped) 28. A/C switch (if equipped) 50. Interior light
7. Key reminder switch 29. Rear end door window defogger switch 51. Rear end door window defogger relay
8. Theft deterrent light 30. Rear wiper motor 52. Right side door mirror heater (if equipped)
9. Oil pressure switch 31. Rear wiper relay 53. Left side door mirror heater (if equipped)
10. SDM 32. TCM (A/T model) 54. Rear end door window defogger
11. P/S control module 33. ECM 55. Rear end door window defogger indicator light
12. Navigation (if equipped) 34. ABS control module 56. Horn relay
13. Audio unit (if equipped) 35. Keyless start control module (if equipped) 57. Horn switch
14. Headlight leveling control module (if equipped) 36. CAN junction connector 58. Horn
15. Generator 37. Combination meter 59. Lighting switch
16. Information display (if equipped) 38. 4WD control module (if equipped) 60. Ignition switch
17. HVAC control module (if equipped) 39. DLC 61. Battery
18. Keyless entry receiver (if equipped) 40. To ABS control module and P/S control module 62. Body ground
19. Driver side door switch 41. To SDM 63. Engine ground
20. Other than driver side door switch 42. To HVAC control module (if equipped)

Downloaded from www.Manualslib.com manuals search engine 10B-25 Body Electrical Control System:
Junction block connector “L314”
Junction block connector “L315”Terminal Circuit Normal voltage Condition
L314-4 Ground for BCM 0 V Ignition switch is at all positions
L314-6Right side door mirror heater
(if equipped)10 – 14 VEngine is running and rear end door window
defogger is in operation
0 VEngine is running and rear end door window
defogger is not in operation
L314-7Left side door mirror heater (if
equipped)10 – 14 VEngine is running and rear end door window
defogger is in operation
0 VEngine is running and rear end door window
defogger is not in operation
L314-8Rear end door window
defogger wire10 – 14 VEngine is running and rear end door window
defogger is in operation
0 VEngine is running and rear end door window
defogger is not in operation
L314-9 Rear wiper control10 – 14 VIgnition switch is at ON position and rear
wiper is not in operation
0 VIgnition switch is at ON position and rear
wiper is in operation
Terminal Circuit Normal voltage Condition
L315-1Door lock actuator control
(Dead lock) (if equipped)10 – 14 VDriver side key cylinder is turned to lock twice
with in 3 seconds
0 VManual door lock switch is at any position
other than LOCK position and driver side door
key cylinder switch is at any position other
than LOCK position
L315-9Door lock actuator control
(Unlock) (if equipped)10 – 14 VUnlock signal is output for rear door lock
actuator
0 VUnlock signal is not output for rear door lock
actuator
L315-10Door lock actuator control
(Lock) (if equipped)10 – 14 V Lock signal is output for all door lock actuators
0 VLock signal is not output for all door lock
actuators