Suzuki Wagon R Manual page 3688

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Precaution in Diagnosing Trouble
• Don't disconnect couplers from ECM, battery cable from battery, ECM ground wire harness from engine or
main fuse before confirming diagnostic information stored in ECM memory.
• 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.
• Be sure to read "Precautions for Electrical Circuit Service" in Section 0A before inspection and observe what
is written there.
• ECM replacement
If ECM is replaced, register secret key code (SKC) and password (PWD) to ECM referring to "Procedure
after ECM Replacement" in Section 8G3.
ENGINE GENERAL INFORMATION AND DIAGNOSIS (Z10XEP AND Z12XEP ENGINES) 6-4-7
Data Link Connector (DLC)
DLC (1) in compliance with SAE J1962 in its installation position,
the shape of connector and pin assignment.
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K line (3) of ISO 9141 is used for SUZUKI scan tool to communi-
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cation with ECM, ABS control module, EPS controller, SDM and
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immobilizer control module.
2. B+
4. ECM ground
5. Body ground