What is a complete driving cycle?
A drive cycle is one of the methods used by a vehicle’s powertrain control module (PCM) to determine whether an emissions system repair was performed successfully. It involves a special test drive that duplicates the scenario of a person starting the car and making a short freeway trip, as if driving to work.
What happens when you run through the drive cycle?
Running through the drive cycle sets the readiness monitors so they can detect any emissions failures. Your vehicle’s specific drive cycle can depend on the vehicle make and model, and which monitor needs to be reset. In most cases, two drive cycles are required, separated by a cool down period.
When do I need to complete the drive cycle?
Turn on the ignition to ON, but do not start the engine. The check engine light f the (MIL) will turn on for 15 seconds. After 15 seconds, one of two things will happen. If the MIL flashes for 10 seconds, and then returns to being fully illuminated, the OBDII sensors are NOT READY and you need to complete the drive cycle.
What is a drive cycle and emissions readiness monitor?
The Drive Cycle and Emissions Readiness Monitors are methods used by the powertrain control module (PCM) to determine whether an emissions system repair was properly performed.
How long does it take for an OBD2 readiness monitor to run?
About one week of combined city and highway driving is usually enough to allow the monitors to reach complete status. The drive cycle is explained in more details in the next paragraph. The purpose of the OBD2 drive cycle is to let your car run on-board diagnostics. This, in turn, allows the readiness monitors to operate.
Running through the drive cycle sets the readiness monitors so they can detect any emissions failures. Your vehicle’s specific drive cycle can depend on the vehicle make and model, and which monitor needs to be reset. In most cases, two drive cycles are required, separated by a cool down period.
The Drive Cycle and Emissions Readiness Monitors are methods used by the powertrain control module (PCM) to determine whether an emissions system repair was properly performed.
About one week of combined city and highway driving is usually enough to allow the monitors to reach complete status. The drive cycle is explained in more details in the next paragraph. The purpose of the OBD2 drive cycle is to let your car run on-board diagnostics. This, in turn, allows the readiness monitors to operate.
Turn on the ignition to ON, but do not start the engine. The check engine light f the (MIL) will turn on for 15 seconds. After 15 seconds, one of two things will happen. If the MIL flashes for 10 seconds, and then returns to being fully illuminated, the OBDII sensors are NOT READY and you need to complete the drive cycle.