Suzuki 2006 SX4 Service Manual page 1464

10E-20 Keyless Start System:
Troubleshooting
Step
1 Combination 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?
2 Driver 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?
3 Key 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?
4 Keyless 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?
5 CAN 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?
Action Yes
Go to Step 2.
Go to Step 3.
Go to Step 4.
Go to Step 5.
Substitute a known-
good keyless start
control module and
recheck.
No
Check main fuse, circuit
fuse, combination meter
power and ground
circuit.
Repair or replace
malfunction part.
Repair or replace
malfunction part.
Repair circuit.
Repair circuit.