2006 SUZUKI SX4 fuse

Downloaded from www.Manualslib.com manuals search engine Immobilizer Control System: 10C-9
Immobilizer Indicator Light Does Not Come ON with Ignition Switch ON and Engine StopS6RW0DA304006
Wiring Diagram
Refer to “Immobilizer Control System Wiring Circuit Diagram”.
Circuit Description
When the ignition switch is turned ON, ECM transmits the indication ON signal to the combination meter to turn ON the
immobilizer indicator light in case that there is not any problem with the immobilizer control system. Then, the
combination meter turns ON the light. When the engine is started up, ECM transmits the indication OFF signal to the
combination meter to turn OFF the light. Then, the combination meter turns OFF the immobilizer indicator light.
However, in case that there is some trouble with the immobilizer control system, the immobilizer indicator light flashes
ON and OFF when the ignition switch is turned ON.
Troubleshooting
Step Action Yes No
1Immobilizer indicator light power supply check
1) Turn the ignition switch to ON position.
Do other warning lights come ON?Go to Step 2. Go to Step 4.
2DTC check of ECM
1) Check ECM for DTC referring to “DTC Check in Section
1A”.
Is DTC U0073, U0101, U0121 and/or U0140 detected?Go to applicable DTC
diag. flow.Go to Step 3.
3DTC check of BCM
1) Check BCM for DTC referring to “DTC Check in Section
10B”.
Is DTC U0073, U0100, U0101, U0155 and/or U1144
detected?Go to applicable DTC
diag. flow.Substitute a known-
good combination meter
and recheck. If
immobilizer indicator
light still remains OFF,
substitute a known-
good ECM and recheck.
4Fuse check
1) Turn the ignition switch to OFF position.
2) Check fuse for combination meter circuit.
Is fuse blown?Replace blown fuse,
and then check for
short.Go to Step 5.
5Combination meter power supply wire circuit check
1) Remove combination meter referring to “Combination
Meter Removal and Installation in Section 9C”.
2) Check for proper connection at terminals and wires of
combination meter connector.
3) If OK, turn the ignition switch to ON position and
measure voltage between power supply terminal of
combination meter and vehicle body ground. Refer to
“Combination Meter Circuit Diagram in Section 9C”.
Is it 10 – 14 V?Go to Step 6. Repair open in power
supply wire circuit.
6Combination meter ground wire circuit check
1) Turn ignition switch OFF position.
2) Measure resistance between ground terminal of
combination meter connector and vehicle body ground.
Refer to “Combination Meter Circuit Diagram in Section
9C”.
Is resistance 1
Ω or less?Substitute a known-
good combination meter
and recheck. If still
remains OFF, substitute
a known-good ECM and
recheck.Repair open or high
resistance in ground
circuit.

Downloaded from www.Manualslib.com manuals search engine Immobilizer Control System: 10C-13
DTC P1618: Keyless Start Control Module CAN Communication ErrorS6RW0DA304011
Refer to “Troubleshooting for CAN-DTC in Section 1A”.
DTC P1621: Immobilizer Communication Line ErrorS6RW0DA304012
Wiring Diagram
Refer to “Immobilizer Control System Wiring Circuit Diagram”.
Detecting Condition and Trouble Area
TroubleshootingDetecting Condition Trouble Area
Communication error between ICM and ECM. • Related fuse(s) blown
• Poor connection at ICM connector
• Poor connection at ECM connector
• Power supply circuit
• Ground circuit
• Communication circuits between ICM and ECM
•ICM
•ECM
Step Action Yes No
1Was “Immobilizer Control System Check” performed?Go to Step 2. Go to “Immobilizer
Control System Check”.
2Fuse check
1) Check fuse for ICM circuit.
Is fuse in good condition?Replace blown fuse(s)
and then, check for
short circuit.Go to Step 3.
3Voltage check at power and ground terminal
1) Check power and ground terminal voltage of ICM
connector referring to “Inspection of ICM and Its Circuit”.
Is each terminal voltage in good condition?Go to Step 4. Repair circuit.
4ICM and ECM connector check
1) With the ignition switch at OFF position, check
intermittent and poor connection of ICM connector and
ECM connectors referring to “Intermittent and Poor
Connection Inspection in Section 00”.
Is each connector in good condition?Go to Step 5. Repair poor connection.
5Communication circuit check between ICM and ECM
1) Check for open, short and high resistance in serial
communication and clock circuit between ICM and ECM.
Is each communication circuit in good condition?Substitute a known-
good ICM and recheck.
If DTC P1621 is still
detected, substitute a
known good ECM and
recheck.Repair circuit.

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-13
Keyless Start System Symptom DiagnosisS6RW0DA504010
Door Lock Function of Keyless Start System
NOTE
Before performing trouble diagnosis procedure for door lock function of keyless start system, check
that power door lock system operates properly referring to “Power Door Lock System Operation
Inspection (If Equipped) in Section 9F”. If power door lock system does not operate properly, go to
“Power Door Lock System Symptom Diagnosis (If Equipped) in Section 9F”.

Keyless Engine Start Function
NOTE
Before performing symptom diagnosis procedure for keyless engine start system, check that engine
starts by using ignition key. If it cannot be started by using ignition key, go to “Engine Symptom
Diagnosis in Section 1A”.

Condition Possible cause Correction / Reference Item
All doors can not be
locked / unlocked by all of
door request switchesCircuit fuse(s) blownReplace fuse(s) and check for short circuit.
Remote controller battery deadReplace battery.
Remote controller faultyCheck remote controller for operation referring
to “Remote Controller Inspection”.
Wiring or grounding faultyRepair circuit.
Antennas or keyless start control
module faultyCheck input and output signals of keyless start
control module referring to “Inspection of
Keyless Start Control Module and Its Circuits”.
BCM faultyCheck input and output signal of BCM referring
to “Inspection of BCM and Its Circuits in
Section 10B”.
All doors can not be
locked / unlocked by any
one of door request
switchRequest switch faultyCheck request switch for operation referring to
“Front Door (Driver and Passenger Side), Rear
End Door Request Switch Inspection”.
Wiring or grounding faultyRepair circuit.
Antennas or keyless start control
module faultyCheck input and output signals of keyless start
control module referring to “Inspection of
Keyless Start Control Module and Its Circuits”.
BCM faultyCheck input and output signal of BCM referring
to “Inspection of BCM and Its Circuits in
Section 10B”.
Condition Possible cause Correction / Reference Item
Engine can not be started
by turning Ignition knob
switchCircuit fuse(s) blownReplace fuse(s) and check for short circuit.
Remote controller battery deadReplace battery.
Remote controller faultyCheck remote controller for operation referring
to “Remote Controller Inspection”.
Steering lock unit faultyCheck steering lock unit for operation referring
to “Steering Lock Unit Inspection”.
Wiring or grounding faultyRepair circuit.
Antennas or keyless start control
module faultyCheck input and output signals of keyless start
control module referring to “Inspection of
Keyless Start Control Module and Its Circuits”.
ECM faultyCheck input and output signal of ECM referring
to “Inspection of ECM and Its Circuits in
Section 1A”.

Downloaded from www.Manualslib.com manuals search engine 10E-20 Keyless Start System:
No DTC Detection After Performing DTC CheckS6RW0DA504014
Wiring Diagram
Description
The keyless start control module detects DTC by using signals from the key reminder and driver side door request
switches. The keyless start control module makes the key indicator light in the combination meter flash on and off by
using CAN communication.
Troubleshooting
BLK/ORNG16-9
G16-15
G16-14
G16-16
G16-20G16-29G16-30
G16-10
G16-34
G16-11BLU/WHT
WHT/RED
WHT/RED
WHT/RED
PPL
RED/BLK
5V5V 5V5V
5V12V
12VWHTREDWHTREDG16-18G16-19G241-10G241-7
BLU/YEL
ORN
BLK/YELBRN/YELBRNG146-3
G146-1
G146-2G146-5
G146-4
G146-6
G146-7G146-8
WHT/RED
WHT/RED
G241-32
6 7
81
2
4 53
20 12 3 4 5 6 7 8 9 10 11 14 15 16
36 34 33 32 30 29 24 23 37 18 19
[A]
9
G16
I7RW01A50004-02
[A]: Keyless start control module connector (viewed from harness side) 4. Ignition knob switch 8. Key indicator light
1. Keyless start control module 5. Key reminder switch 9. CAN junction connector
2. Steering lock unit 6. Driver side door request switch
3. Steering lock solenoid 7. Combination meter
Step Action Yes No
1Combination meter power and ground circuit check
1) Turn ignition switch to ON position.
Do warning lights in combination meter other than key
indicator light light up?Go to Step 2. Check main fuse, circuit
fuse, combination meter
power and ground
circuit.
2Driver side door request switch and its circuit check
1) Check driver side door request switch and its circuit
referring to “DTC No. 51 / No. 52 / No. 53: Driver Side /
Passenger Side / Rear End Door Request Switch
Failure”.
Is it in good condition?Go to Step 3. Repair or replace
malfunction part.
3Key reminder switch and its circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connector from ignition switch.
3) Check key reminder switch for operation referring to
“Ignition Switch Inspection in Section 9C”.
4) If OK, check for open, short and high resistance in key
reminder switch circuit.
Is it in good condition?Go to Step 4. Repair or replace
malfunction part.

Downloaded from www.Manualslib.com manuals search engine 10E-22 Keyless Start System:
Description
When the ignition knob switch is pushed, the key indicator light lights up in blue if you carry the remote controller
registered in the keyless start control module and it lights in red if you carry the remote controller which has not been
registered in the keyless start control module or if you carry no remote controller.
Troubleshooting
Step Action Yes No
1Combination meter power and ground circuit check
1) Turn ignition switch to ON position.
Do warning lights in combination meter other than key
indicator light light up?Go to Step 2. Check main fuse, circuit
fuse, combination meter
power and ground
circuit.
2Keyless start control module power and ground circuit
check
1) Check keyless start control module power and ground
circuit for condition referring to “Keyless Start Control
Module Power and Ground Circuit Check”.
Is it in good condition?Go to Step 3. Repair circuit.
3Steering lock unit ignition knob switch check
1) Check ignition knob switch of steering lock unit for
operation referring to “Steering Lock Unit Inspection”.
Is it in good condition?Go to Step 4. Replace steering lock
unit.
4Wire harness check
1) Turn ignition switch to OFF position.
2) Disconnect connectors from keyless start control
module, steering lock unit and combination meter.
3) Check for open, short and high resistance in following
circuits.
• Ignition knob switch signal circuit
• Keyless start control module and combination meter
CAN communication circuit
Is each circuit in good condition?Go to Step 5. Repair circuit.
5Keyless start system operation check
1) With remote controller of which ID code is registered in
keyless start control module carried with you, try to turn
ignition knob switch.
Can it be turned to any position other than “LOCK” position?Replace combination
meter.Substitute a known-
good keyless start
control module and
recheck.

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-23
Keyless Start Control Module Power and Ground Circuit CheckS6RW0DA504016
Wiring Diagram
Troubleshooting
BLK/ORNG16-9
G16-15
G16-10
G16-11BLU/WHT
WHT/RED
RED/BLK
5V 12V
1 2 3 4 5 6 7 8 9 10 11 14 15 16
36 34 33 32 30 29 24 23 37 18 19 20
[A] 423
31
G16 5
86
7
3
I7RW01A50006-02
[A]: Keyless start control module connector (viewed from harness side) 3. Circuit fuse 6. ACC signal circuit
1. Keyless start control module 4. Main fuse 7. IG ON signal circuit
2. Ignition switch 5. Power source circuit 8. Ground circuit
Step Action Yes No
1Fuse check
1) Turn ignition switch to OFF position.
2) Check circuit fuse and main fuse for condition.
Are fuses in good condition?Go to Step 2. Replace fuse(s) and
check for short.
2Power supply circuit check
1) Disconnect connector from keyless start control module.
2) Check for proper connection to “Power source”, “ACC
signal” and “IG ON signal” terminal of keyless start
control module connector.
3) If OK, measure voltage between following terminals.
• “Power source” terminal of keyless start control
module connector and vehicle body ground with
ignition switch is at OFF position
• “ACC signal” terminal of keyless start control module
connector and vehicle body ground with ignition
switch is at ACC position
• “IG ON signal” terminal of keyless start control module
connector and vehicle body ground with ignition
switch is at ON position
Is each terminal voltage is 10 – 14 V?Go to Step 3. Repair defective power
supply circuit.
3Ground circuit check
1) Check for proper connection to “Ground” terminal of
keyless start control module connector.
2) If OK, measure resistance between “Ground” terminal of
keyless start control module connector and vehicle body
ground.
Is resistance 1
Ω or less?Power and ground
circuit is in good
condition.Repair ground circuit.