2009 Suzuki 400 LTZ Quad Sport Service Manual, Page 75Get this manual
1A-11 Engine General Information and Diagnosis: Use of SDS NOTE Do not disconnect the coupler from ECM, the battery cable from the battery, ECM ground wire harness from the engine or main fuse before confirming DTC (Diagnostic Trouble Code) stored in memorySuch disconnection will erase the memorized information in ECM memory DTC stored in ECM memory can be checked by the SDS Be sure to read "Precautions for Electrical Circuit Service in Section 00 (Page 00-2)" before inspection and observe what is written there1) Remove the left side coverRefer to "Exterior Parts Removal and Installation in Section 9D (Page 9D4)"2) Set up the SDS tools(Refer to the SDS operation manual for further details Special tool (A): 0990441010 (SDS set) (B): 9956501010016 (CD-ROM Ver.16)