2006 SUZUKI SX4 Power door

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-15
Voltage Check
1) Disconnect negative cable (–) at battery.
2) Remove keyless start control module from vehicle body referring to “Keyless Start Control Module Removal and
Installation”.
3) Connect connector to keyless start control module.
4) Check voltage at each terminal number of couplers connected.
NOTE
• As each terminal voltage is affected by the 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.

1 2 3 4 5 6 7 8 9 10 11 14 15 16
36 34 33 32 31 30 29 24 23 37 18 19 20
[A]
I5RW0AA50008-03
[A]: Keyless start control module connector (viewed from harness side)
Terminal
NumberCircuitNormal
Vo l ta g eCondition
G16-1 Driver side door antenna (–)
*0 – 5 V Refer to “Reference waveform No. 1: ”
G16-2 Driver side door antenna (+)
G16-3 Rear end door antenna (–)
*0 – 5 V Refer to “Reference waveform No. 1: ”
G16-4 Rear end door antenna (+)
G16-5 Center antenna (–) *–2 – 2 V
Refer to “Reference waveform No. 2: ”
G16-6 Center antenna (+) *–10 – 15 V
G16-7 Luggage room antenna (–) *–10 – 10 V
Refer to “Reference waveform No. 3: ”
G16-8 Luggage room antenna (+) *–8 – 14 V
G16-9 Ground for keyless start control module 0 – 1 V Ignition switch is at all positions
G16-10 Power source 10 – 12 V Ignition switch is at all positions
G16-11 Ignition switch (ACC signal)10 – 12 V Ignition switch is at ACC or ON position
0 – 1 VIgnition switch is at any position other than
ACC or ON position
G16-12 — — —
G16-13 — — —
G16-14 Ignition switch (key reminder signal)10 – 12 V Insert ignition key to ignition key cylinder
0 – 1 V Pull out ignition key from ignition key cylinder
G16-15 Ignition switch (ON signal)10 – 12 V Ignition switch is at ON position
0 – 1 VIgnition switch is at any position other than ON
position
G16-16 Driver side door request switch10 – 12 V Request switch of driver side door is released
0 – 1 V Request switch of driver side door is pushed
G16-17 — — —

Downloaded from www.Manualslib.com manuals search engine 10E-16 Keyless Start System:
G16-18 CAN communication line (low) *1.6 – 2.5 V
Refer to “Reference waveform No. 4: ”
G16-19 CAN communication line (high) *2.5 – 3.6 V
G16-20 Power supply for steering lock unit 4 – 6 V Full time
G16-21 — — —
G16-22 — — —
G16-23 Passenger side door antenna (–)
*0 – 5 V Refer to “Reference waveform No. 1: ”
G16-24 Passenger side door antenna (+)
G16-25 — — —
G16-26 — — —
G16-27 — — —
G16-28 — — —
G16-29 Signal for steering lock unit4 – 6 VIgnition knob switch is at any position other
than ON and OFF position
*0 – 5 V Refer to “Reference waveform No. 5: ”
G16-30 Ground for steering lock unit 0 – 1 V Full time
G16-31 — — —
G16-32 Rear end door request switch10 – 12 V Request switch of rear end door is released
0 – 1 V Request switch of rear end door is pushed
G16-33 Driver side door lock switch0 – 1 VDriver side door is at unlock position and
passenger side door is at lock position
4 – 6 VDriver and passenger side door is at lock
position
*3 – 5 V Refer to “Reference waveform No. 6: ”
G16-34 Ignition knob switch10 – 12 VWhen pushing ignition knob switch of steering
lock unit
0 – 1 VWhen releasing ignition knob switch of
steering lock unit
G16-35 — — —
G16-36 Passenger side door request switch10 – 12 VRequest switch of passenger side door is
released
0 – 1 VRequest switch of passenger side door is
pushed
G16-37 Passenger side door lock switch0 – 1 VPassenger side door is at unlock position and
driver side door is at lock position
4 – 6 VDriver and passenger side door is at lock
position
*3 – 5 V Refer to “Reference waveform No. 6: ”
G16-38 — — —
G16-39 — — —
G16-40 — — — Terminal
NumberCircuitNormal
Vo l ta g eCondition

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 Keyless Start System: 10E-25
DTC No. 13 / No. 14: Release Signal Error from Steering Lock Unit / Steering Lock Unit MalfunctionS6RW0DA504018
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC referring to “DTC Clearance”.
2) Turn ignition knob switch pushing ignition knob switch.
3) Check DTC referring to “DTC Check”.
DTC Troubleshooting
Replace steering lock unit and recheck.
NOTE
Be sure to register the following code when a used keyless start control module is installed. Otherwise
DTC No.13 is detected by keyless start control module though steering lock unit is normal.
• With immobilizer control system, ignition key transponder code is not registered in ECM.
• Without immobilizer control system, steering lock unit ID code is not registered in keyless start
control module.

DTC No. 21 / No. 22: Internal Error of Keyless Start Control Module (EEPROM Reading Error) /
(EEPROM Writing Error)
S6RW0DA504019
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC referring to “DTC Clearance”.
2) Turn ignition knob switch pushing ignition knob switch.
3) Push request switch of each door.
4) Check DTC referring to “DTC Check”.
DTC Troubleshooting
Substitute a known-good keyless start control module and recheck.3Steering lock unit power supply voltage check
1) Connect connector to keyless start control module.
2) Measure voltage between “Steering lock unit power
supply” terminal of steering lock unit connector and
vehicle body ground.
Is voltage 4 – 6 V?Replace steering lock
unit.Substitute a known-
good keyless start
control module and
recheck. Step Action Yes No
DTC detecting condition Trouble area
DTC No. 13:
Although lock release signal is output to steering lock unit, no lock
release signal is inputted from steering lock unit.
(wire harness is normal)
DTC No. 14:
Although lock release signal is output to steering lock unit,
steering lock is not released due to temperature rise of steering
lock unit solenoid and no lock release signal is inputted.
(wire harness is normal)• Steering lock unit
DTC detecting condition Trouble area
DTC No. 21:
Data cannot be read from memory in keyless start control module.
DTC No. 22:
Data cannot be written into memory in keyless start control module.• Keyless start control module