LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2010 >> Cobalt LS, 4D Sedan, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Fuel System & Emissions System) >> System Description >> PGM-FI System >> Malfunction Indicator Lamp (MIL) Indication (In relation to Readiness Codes)

Malfunction Indicator Lamp (MIL) Indication (In relation to Readiness Codes)

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.

The vehicle has certain readiness codes that are part of the on-board diagnostics for the emissions systems. If the vehicle's 12 volt battery has been disconnected or gone dead, if DTCs have been cleared, or if the PCM has been reset, these codes are reset. In some states, part of the emissions testing is to make sure these codes are set to complete. If all of them are not set to complete, the vehicle may fail the test, or the test cannot be finished.

To check if the readiness codes are set to complete, turn the ignition switch to ON (II), but do not start the engine. The MIL will come on for 15-20 seconds. If it then goes off, the readiness codes are complete. If it flashes five times, one or more readiness codes are not complete. To set each code, drive the vehicle or run the engine as described in the procedures (see HOW TO SET READINESS CODES  ).