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Don’t disconnect couplers from ECM, battery cable from battery, ECM ground wire harness from engine or main fuse before confirming diagnostic information (DTC) stored in ECM memory.
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Diagnostic information stored in ECM memory can be cleared as well as checked by using SUZUKI scan tool. Before using scan tool, read its Operator’s (Instruction) Manual carefully to have good understanding as to what functions are available and how to use it.
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Be sure to read
Fastener Caution
before inspection and observe what is written there.
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Fuel Injector Registration
If fuel injector is replaced, register fuel injector calibration code into ECM by performing procedure described in
Registration Procedure for the Fuel Injector Calibration Code:K9K
.
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Registration for ECM Replacement
Engine control program is not written in new ECM (i.e., blank ECM) bought from a part supplier.
Therefore, when using a new ECM, it is necessary to write engine control program in it. For details, refer to
Registration Procedure for the ECM:K9K
.
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High Pressure Pump Data Initialization
If high pressure pump is replaced with new one, initialize fuel pressure data in ECM by performing procedure described in
Initialization Procedure for the High Pressure Pump Data:K9K
.
•
EGR Valve Data Initialization
If EGR valve is replaced with new one, initialize EGR valve data in ECM by performing procedure described in
Initialization Procedure for the EGR Valve Data:K9K
.
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ECM substitution
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The data of immobilizer control system registered with ECM cannot be reprogrammed. Therefore, check for engine control system can not be performed using known-good ECM installed in other normal vehicle.
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In case that new ECM, on which the data of immobilizer control system is not programmed, is used for inspecting the engine control system, the ECM cannot be used for the other vehicles because the data of immobilizer control system registered with the ECM cannot be reprogrammed.