Showing posts with label dlc. Show all posts
Showing posts with label dlc. Show all posts

Tuesday, June 1, 2010

1995 Volvo 850 Volvo Maintenance Reminder Light Reset Procedures

The Service Reminder Indicator (SRI) is triggered at the appropriate interval since last service. Depending on model, this is based on accumulated mileage, calendar time, or hours of engine operation. Once triggered, the SRI comes on each time the engine is started. The light goes out after approximately two minutes except on 850 Base variant (without trip computer). After service is performed and the SRI counter reset, the SRI will not light again until shortly before next service is due.

Saturday, May 15, 2010

What Do We Know About OBDII Now?

Illinois has been testing OBDII systems with pass fail criteria for about a year now, and we know much more about how the system works or does not work than we knew in January 2004. But first a quick review... A vehicle that is presented for an OBDII test will first receive a gas cap test and then be scanned through the DLC. The vast majority of the vehicles will in fact communicate via the DLC and most that will not are either missing B+ on pin 16 and/or ground on pin 5. If the vehicle will communicate via the DLC, a check of applicable readiness monitors will occur. If the correct number of monitors have been run, MIL function is analyzed and the vehicle passes or fails. This abbreviated explanation gives an overview of the test. More information is available in the Outreach OBDII seminars.

OBDII Scanner Tool User's Manual

On-board diagnostics version II (OBD II) is a system that the Society of Automotive Engineers (SAE) developed to standardize automotive electronic diagnosis.
Beginning in 1996, most new vehicles sold in the United States were fully OBD II compliant.
Technicians can now use the same tool to test any OBD II compliant vehicle without special adapters. SAE established guidelines that provide: