Reading OBD Readiness Code (TIPS 1199-03)

READING OBD READINESS CODE

TECHNICAL INFORMATION TIP - MANUFACTURER

READING OBD READINESS CODES

Model(s): All Subaru Models

Category: Subaru Technical Support T.I.P.S.

Group: 11 - Emission System

Bulletin No.: Tips 1199-03

Date: November 1999

SERVICE INFORMATION

As some of you may know, many states are including an inspection of the OBD system as part of their emissions test procedure. It includes, but may not be limited to, inspection of the MIL or Check Engine Light for proper illumination, operation, and status of the Readiness Codes.

Readiness Codes can be checked with a generic scan tool and the New Select Monitor (NSM).

Follow the tree below to access the Readiness Codes with the New Select Monitor:

• Each System Check
• EGI
• OBD System
• 12 Data Display

Any item that is a Readiness Code will have an indicator to the right that tells you complete or incomplete. See Fig 1 . Complete means that the system has been tested by the onboard diagnostic system. Incomplete means that the system has not been tested. In either case the results of the test are not indicated. A vehicle must have all of the Readiness Codes reading Complete before it can be inspected for proper emissions.

The Readiness Codes will all indicate incomplete after the memory of an ECM has been cleared.

Follow the steps below to activate the Readiness Codes to complete:

• 96MY: Connect the Test Mode (inspection mode connector) and drive on a flat road (highway) at approximately 50 to 55 mph for 20 to 30 minutes.
• 97MY and after: Drive on flat road (highway) at approximately 50 to 55 mph for 30 minutes for warmup. Then perform 10 minutes at steady speed (without any throttle angle change) at 50-60 mph.