Suzuki Liana RH413, Service Manual

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10C-7 Immobilizer Control System:
NOTE
After replacing with a known-good ECM, register ECM/Immobilizer Control Module (ECU) code in ECM
by performing procedure described in “Procedure after ECM Replacement”.
Vehicle Equipped with Immobilizer Indicator Lamp
NOTE
After replacing with a known-good ECM, register ECM/Immobilizer Control Module (ECU) code in ECM
by performing procedure described in “Procedure after ECM Replacement”.
5 1) Check DTC stored in ECM referring to “DTC Check”.
Is there any DTC(s)?
Go to flow for DTC No. Substitute a known-
good ECM and recheck.
See NOTE.
Step Action Yes No
Step Action Yes No
1 1) Check immobilizer indicator lamp (1) while ignition
switch is ON (but without starting engine).
Does immobilizer indicator lamp flash?
Go to Step 3. If immobilizer indicator
lamp remains ON, go to
Step 2.
If immobilizer indicator
lamp remains OFF, go
to “Immobilizer Indicator
Lamp Does Not Light at
Ignition Switch ON
(Equipped with
Immobilizer Indicator
Lamp)”.
2 1) Check DTC stored in ECM referring to “DTC Check”.
Is there any DTC(s)?
Go to “Immobilizer
Indicator Lamp
Remains ON after
Engine Starts (Equipped
with Immobilizer
Indicator Lamp)”. Immobilizer control
system is in good
condition.
3 1) Check DTC stored in Immobilizer Control Module
referring to “DTC Check”.
Is there any DTC(s)?
Go to flow for DTC No. Go to Step 4.
4 1) Check DTC stored in ECM referring to “DTC Check”.
Is there any DTC(s) for immobilizer control system?
Go to flow for DTC No. Substitute a known-
good ECM and recheck.
See NOTE.
1
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