On-Board Diagnostic System Description (Self-Diagnosis Function) - Suzuki Liana RH413 Service Manual

On-Board Diagnostic System Description (Self-
diagnosis Function)
When the ignition switch is turned ON, Immobilizer
Control Module and ECM diagnose the immobilizer
control system to see if there is any trouble in the area
consisted of the following parts.
ECM:
• ECM/Immobilizer Control Module (ECU) code
• Serial data link circuit
Immobilizer Control Module:
• Transponder code
• Coil antenna
• ECM/Immobilizer Control Module (ECU) code
• Serial data link circuit
• Ignition signal
Vehicle Not Equipped with Immobilizer Indicator
Lamp
With the diagnosis switch terminal of diagnosis
connector for ECM not grounded and the ignition switch
turned ON (but the engine at stop) regardless of the
condition of the engine fuel injection system, ECM
indicates whether any trouble has occurred in the
immobilizer control system or not by flashing ON and
OFF or lighting ON the malfunction indicator lamp.
Malfunction indicator lamp lights ON:
No trouble exists in the immobilizer control system.
Malfunction indicator lamp flashes ON and OFF at
0.5 – sec. intervals:
ECM or Immobilizer Control Module has detected some
trouble in the immobilizer control system.
NOTE
As soon as the ignition switch is turned ON,
ECM and Immobilizer Control Module
diagnose the immobilizer control system to
see if any trouble has occurred in the system.
During diagnosis, the malfunction indicator
lamp stays ON. If the diagnosis result is
"abnormal", it immediately starts flashing ON
and OFF. However, if the result is "normal", it
remains ON. Diagnosis takes about 3
seconds at maximum.
S3RH0AA301002
Vehicle Equipped with Immobilizer Indicator Lamp
With the ignition switch turned ON (but the engine at
stop) regardless of the condition of the engine and
emission control system, ECM indicates whether any
trouble has occurred in the immobilizer control system or
not by flashing ON and OFF or lighting ON the
immobilizer indicator lamp.
Immobilizer indicator lamp lights ON:
No trouble exists in the immobilizer control system.
Immobilizer indicator lamp flashes ON and OFF at
0.5 – sec. intervals:
ECM or Immobilizer Control Module has detected some
trouble in the immobilizer control system.
NOTE
As soon as the ignition switch is turned ON,
ECM and Immobilizer Control Module
diagnose the immobilizer control system to
see if any trouble has occurred in the system.
During diagnosis, the immobilizer indicator
lamp stays ON. If the diagnosis result is
"abnormal", it immediately starts flashing ON
and OFF. However, if the result is "normal", it
remains ON. Diagnosis takes about 3
seconds at maximum.
When ECM and Immobilizer Control Module detects
some trouble which has occurred in the areas mentioned
above, it stores DTC in ECM and Immobilizer Control
Module memory.
DTC stored in memory of each controller (Immobilizer
Control Module and ECM) can be read by using the
procedure described in "DTC Check".
Immobilizer Control System: 10C-4
I3RH0AA30006-01
I3RH0AA30007-01