Mode 2 Procedure

NOTE: For the Mode 2 driving procedure, it is best to use a stopwatch for accurate timing of the drive cycle.

WARNING: Strict observance of posted speed limits and attention to driving conditions are mandatory when proceeding through the following drive cycle.

NOTE: Observing the diagnostic monitors while performing this mode will verify when the mode is complete, as the monitors will clear. If Mode 2 is performed properly and the monitors do not clear, either Mode 1 was not successfully completed or a concern exists with the vehicle.

Mode 2:

1. Key OFF.
2. Connect NGS to the OBD II DLC.
3. Access the Vehicle Speed Sensor (VSS) Parameter Identification (PID).
4. Ensure that all accessories are OFF, including A/C.
5. Start the engine and stopwatch.
6. Drive the vehicle at any legal speed for approximately 3 minutes, no particular driving pattern is necessary.
7. With transmission in DRIVE (A/T) or 5th gear (M/T), accelerate the vehicle to approximately 88 kph (55 mph) and maintain that speed until the 4 minute mark.
8. At the 4 minute mark, drive the vehicle at 84-96 kph (52-60 mph) as indicated by the VSS PID or 87-93 kph (54-58 mph) as indicated by the speedometer until the 5 minute mark.
9. At the 5 minute mark, slow the vehicle to a stop and let the vehicle idle in PARK (A/T) or NEUTRAL (M/T) for more than 1 minute. At this point the oxygen sensor heater system monitor should be cleared.
10. Turn the key OFF.