2008 Acura TSX Owner's Manual - Page 340

Main Menu Table Of Contents Malfunction Indicator Lamp Readiness Codes Your vehicle has certain ''readiness codes'' that are part of the on-board diagnostics for the emissions systems. In some states, part of the emissions testing is to make sure these codes are set. If they are not set, the test cannot be completed. If the battery in your vehicle has been disconnected or gone dead, these codes may be erased. It takes several days of driving under various conditions to set the codes again. To check if they are set, turn the ignition switch to the ON (II) position, without starting the engine. The malfunction indicator lamp will come on for 20 seconds. If it then goes off, the readiness codes are set. If it blinks five times, the readiness codes are not set. If possible, do not take your vehicle for a state emissions test until the readiness codes are set. Refer to Emissions Testing for more information (see page 362 ). Taking Care of the Unexpected If you keep driving with the malf unction indicator lamp on, you can damage your vehicle's emissions controls and engine. Those repairs may not be covered by your vehicle's warranties. If your vehicle has an automatic transmission, the malfunction indicator lamp may also come on with the ''D'' indicator. You will also see a ''CHECK EMISSION SYSTEM'' message on the multi-information display (see page 84 ). 2008 TSX 337