Smog-Check-OBDII-Test


Smog-Check-OBDII-Test

Vehicles without an OBD II system, as determined by the under-hood emission control label, shall not receive an OBD II functional test. Most vehicles with a GVWR greater than 14,000 lbs. are not equipped with an OBD II system.

The OBD II functional test evaluates and reports the status and/or results of the readiness indicators, system faults, and MIL. 


Smog-Check-OBDII-Test


Inspectors must use all available information necessary to determine the vehicle’s OBD II requirements, including but not limited to, the under-hood emission control label (see section 1.3.2), a current emission control application guide, emission control repair manuals, emission component location guides, manufacturer emission control recalls, BAR OBD technical advisements, and any reliable vehicle manufacturer sources.

• Follow the EIS or OIS test prompts to connect the EIS or OIS test lead to the Diagnostic Link Connector (DLC).

DLC Location: Most DLCs are located on the dashboard between the driver’s side of the instrument panel and the middle of the passenger side. Some manufacturers, however, chose other locations. If you are unable to find the DLC, refer to the appropriate electronic component location manual or emission control diagnostic and repair manual. The DLC provides an RPM signal that in most cases can be used during Smog Check emissions test sequences.

Don't get confuse with a tracker that's connected to the OBD II DLC connector and an after market cheap plug. Performing a smog inspection through this additional connector would be called clean plugging.

If the consumer persist its a tracker for the company he/she works for they must provide proof.

Pass/Fail Criteria: The EIS or OIS may include an assessment of the OBD II system’s ability to communicate, the readiness of system monitors, diagnostic trouble codes, vehicle identification, existence of system modifications and the MIL command status. 

The OBD II functional test evaluates and reports the status and/or results of the readiness indicators, system faults, and MIL.

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