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Home >> Suzuki >> 2007 >> Reno Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Diagnostic Introduction >> Diagnostic Information & Procedure >> Data Link Connector Diagnosis >> Test Description

Test Description

Number(s) below refer to the step number(s) on the Diagnostic Table.

  1. The On-Board Diagnostic (OBD II) System Check prompts the technician to complete some basic checks and store the Freeze Frame and failure records data on the scan tool if applicable. This creates an electronic copy of the data taken when the malfunction occurred. The information is then stored on the scan tool for later reference.
  2. Unlike the UART serial data circuit, the only time a Class II serial data circuit has any voltage on it is when a scan tool asks the ECM for information and sends the information out.
  3. Locate and repair any shorts that may have caused the fuse to open before replacement, if the no voltage condition was due to an open fuse.
  4. The scan tool or associated cables could be malfunctioning. Refer to the scan tool's manual for repair information.
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