READINESS MONITOR DRIVE PATTERN 1. PURPOSE OF READINESS TESTS
HINT: Many state Inspection and Maintenance (I/M) programs require a vehicle's Readiness Monitor status to show complete before beginning emission tests.
CAUTION: Strictly observe posted speed limits, traffic laws, and road conditions when performing these drive patterns. NOTICE: These drive patterns represent the fastest method of satisfying all conditions necessary to achieve complete status for each specific Readiness Monitor. In the event of a drive pattern being interrupted (possibly due to factors such as traffic conditions), the drive pattern can be resumed. In most cases, the Readiness Monitor will still achieve complete status upon completion of the drive pattern. To ensure completion of the Readiness Monitors, avoid sudden changes in vehicle load and speed (driving up and down hills and/or sudden acceleration). 2. CATALYST MONITOR (ACTIVE AIR-FUEL RATIO CONTROL TYPE) (a) Refer to Confirmation Driving Pattern [P0420] (See page ). 3. VVT SYSTEM MONITOR (a) Refer to Confirmation Driving Pattern [P0011] (See page ). (b) Refer to Confirmation Driving Pattern [P0014] (See page ). 4. EVAP SYSTEM MONITOR (KEY OFF TYPE) (a) Refer to Confirmation Driving Pattern [EVAP System] (See page ). 5. AIR-FUEL RATIO (A/F) AND HEATED OXYGEN (HO2) SENSOR MONITORS (ACTIVE AIR-FUEL RATIO CONTROL TYPE) (a) Refer to Confirmation Driving Pattern [P0136] (See page ). (b) Refer to Confirmation Driving Pattern [P014C] (See page ). (c) Refer to Confirmation Driving Pattern [P2195] (See page ). 6. AIR-FUEL RATIO (A/F) AND HEATED OXYGEN (HO2) SENSOR HEATER MONITORS (FRONT A/F AND REAR HO2 SENSOR TYPE) (a) Refer to Confirmation Driving Pattern [P0031] (See page ). (b) Refer to Confirmation Driving Pattern [P0037] (See page ). 7. AIR FUEL RATIO (A/F) IMBALANCE MONITOR (a) Refer to Confirmation Driving Pattern [P219A] (See page ). 8. EGR SYSTEM MONITOR (a) Refer to Confirmation Driving Pattern [P0401] (See page ). 9. SECONDARY AIR INJECTION MONITOR (a) Refer to Confirmation Driving Pattern [P0412] (See page ). |
Toyota Tundra Service Manual > Navigation System: GPS Mark is not Displayed
PROCEDURE 1. CHECK CABIN (a) Check the cabin for any object that might interrupt radio reception or additional devices which use radio waves on the instrument panel. If such an object exists, remove it and check if the GPS mark reappears. HINT: The GPS uses extremely weak radio waves originating fro ...