Suzuki Vitara (LY) 2016-2017 · Service Manual Diagnostic Information and Procedures

DTC Check

Precautions: Precautions for Diagnosing Trouble · Precautions for Disassembly and Reassembly · Precautions for Transmission / Transaxle · General safety (00)

1)Set ignition “OFF”.
2)Connect SUZUKI scan tool to DLC (1).
3)Set ignition “ON”.
4)Read DTC and freeze frame data according to instructions displayed on SUZUKI scan tool and print them or write them down. Refer to Operator's Manual of SUZUKI scan tool for further details.
NOTE:
If communication between SUZUKI scan tool and TCM is not possible, perform the following checks:
•Check communication condition between PC and VCI (2) using SUZUKI scan tool function.
•Check DLC power circuit and ground circuit.
•Check DLC cable. If necessary, check DLC cable by substituting a known-good DLC cable.
•Check CAN communication system. (“Control Module Communication Bus Off” is detected in any control module.) icon 
•Check TCM power circuit and ground circuit. icon 
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5)After completing the check, set ignition “OFF” and disconnect SUZUKI scan tool from DLC.