Suzuki 2006 SX4, Service Manual

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10C-9 Immobilizer Control System:
Immobilizer Indicator Light Remains ON after Engine Start
S6RW0CA304007
Wiring Diagram
Refer to “Immobilizer Control System Wiring Circuit Diagram”.
Circuit Description
Refer to “Immobilizer Indicator Light Does Not Come ON with Ignition Switch ON and Engine Stop”.
Troubleshooting
DTC P1614: Transponder Response Error
S6RW0CA304008
Wiring Diagram
Refer to “Immobilizer Control System Wiring Circuit Diagram”.
Detecting Condition and Trouble Area
Troubleshooting
Step Action Yes No
1 DTC check of ECM
1) Check ECM for DTC referring to “DTC Check in Section
1A”.
Is DTC detected?
Go to applicable DTC
diag. flow. Go to Step 2.
2 CAN communication circuit check
1) Disconnect connectors from ECM, BCM, ABS control
module and combination meter.
2) Check CAN communication circuit for open, short and
high resistance.
• Between ECM and ABS control module
• Between BCM and ABS control module
• Between BCM and combination meter
Is each CAN communication circuit in good condition?
Substitute a known-
good combination meter
and recheck. If
immobilizer indicator
light still remains ON,
substitute a known-
good ECM and recheck. Repair circuit.
Detecting Condition Trouble Area
Transponder code in transponder built in ignition key
cannot be read through ICM. • Use of ignition key without transponder
• Use of unregistered ignition key
• Corruption of transponder in ignition key
• ICM
• ECM
Step Action Yes No
1 Was “Immobilizer Control System Check” performed? Go to Step 2. Go to “Immobilizer
Control System Check”.
2 DTC check of ECM
1) Check if any DTC other than P1614 is detected referring
to “DTC Check”.
Is DTC other than P1614 detected?
Go to applicable DTC
diag. flow. Go to Step 3.
3 Registration of ignition key in use with ECM
1) Register ignition key in use with ECM referring to
“Registration of the Ignition Key”.
Was registration of ignition key completed?
Recheck DTC. Go to Step 4.
4 Registration of the spare ignition key
1) Register the spare ignition key with ECM referring to
“Registration of the Ignition Key”.
Was registration of spare ignition key completed?
Replace ignition key
which can not be
registered. Substitute a known-
good ECM and recheck.