Power steering control module SUZUKI SX4 2006 1.G Service Repair Manual

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-21
Key Indicator Light Circuit Check (Key Indicator Light Doesn’t Light when Ignition Knob Switch is
Pushed)
S6RW0DA504015
Wiring Diagram4Keyless 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 5. Repair circuit.
5CAN communication circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors of all control modules
communicating by means of CAN.
3) Check CAN communication circuit between control
modules for open, short and high resistance.
Is each CAN communication circuit in good condition?Substitute a known-
good keyless start
control module and
recheck.Repair circuit. Step Action Yes No
5V5V 5V5V5V 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
12
4
5
7 6
[A]8
3
G16
9
WHT/RED
WHTREDG16-18G16-19WHTREDG241-10G241-7
WHT/REDG241-32
WHT/REDG146-6
G146-3G146-7G146-8
G146-1
G146-2G146-5
G146-4WHT/RED
WHT/RED
G16-20G16-29G16-30BLK/YELBRN/YELBRN
G16-14
G16-34
BLU/YEL
ORN
BLK/ORNG16-9
G16-15
G16-10
G16-11BLU/WHT
WHT/RED
RED/BLK
I7RW01A50005-01
[A]: Keyless start control module connector (viewed from harness side) 5. Steering lock solenoid
1. Keyless start control module 6. Key reminder switch
2. Combination meter 7. Ignition knob switch
3. Key indicator light 8. CAN junction connector
4. Steering lock unit 9. Ignition knob switch signal circuit

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 10E-24 Keyless Start System:
DTC No. 11: Communication Error with Steering Lock UnitS6RW0DA504017
Wiring Diagram
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
5V
G16-20
G16-29
G16-30
G146-3
G146-7
G146-8
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
5V
5V
BRN
BRN/YEL
BLK/YEL
5V
21
[A]
G16
3
4
5
I7RW01A50007-02
[A]: Keyless start control module connector (viewed from harness side) 3. Steering lock unit power supply circuit
1. Keyless start control module 4. Steering lock unit signal circuit
2. Steering lock unit 5. Steering lock unit ground circuit
DTC detecting condition Trouble area
No communication is available between keyless start
control module and steering lock unit.• Steering lock unit and its circuit
• Keyless start control module
Step Action Yes No
1Was “Keyless Start System Check” performed?Go to Step 2. Go to “Keyless Start
System Check”.
2Steering lock unit circuit check
1) Disconnect connector from keyless start control module.
2) Check for proper connection to “Steering lock unit power
supply”, “Steering lock unit signal” and “Steering lock unit
ground” terminals of keyless start control module
connector.
3) If OK, check for open, short and high resistance in
following circuits.
• Steering lock unit power supply circuit
• Steering lock unit signal circuit
• Steering lock unit ground circuit
Is each circuit in good condition?Go to Step 3. Repair circuit.

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