when they wrote this??
EGR SYSTEM MONITOR DRIVE CYCLE INSTRUCTIONS
Do not turn off the ignition switch during the test procedure.
All Onboard Diagnostic Monitors are cleared when the battery is disconnected or when the Powertrain Control Module (PCM) is cleared with the Scan Tool.
This drive cycle can be used to determine if the Readiness code for this Monitor will complete, and if the MIL will remain off after the vehicle is driven.
Operating Ranges: When a range of values is provided, try to operate the vehicle in the middle of the range. For example, if the vehicle speed range calls for 45-55 mph, drive the vehicle as close as possible to 50 mph. If the engine speed should be 1,000-2,000 rpm, try to operate the engine at 1,500 rpm.
Scan Tool Data: There are certain Parameter Identification (PID) values that must be within range before this Monitor will "run". It can be helpful to pull up those PID items on the Scan Tool so an assistant can view them during testing.
EGR SYSTEM MONITOR PRETEST CONDITIONS
MIL is off
No Emission related DTC's are present
Accessories turned off (A/C, fan motor, head lights and rear window defroster)
BARO sensor signal more than 76 kPa
ECT sensor signal more than 170ºF
IAT sensor signal more than 41ºF
Gear selector switch indicating Drive position
Overdrive (O/D) switch indicating "on"
TEST PROCEDURE
Connect the Scan Tool to the data link connector (DLC). Turn the key on and bring up the ECT PID on the Scan Tool. Use the Scan Tool to clear any stored DTC's and to reset the Onboard Diagnostic Monitors.
Start the engine and allow it to run until the ECT PID reaches at least 180ºF.
Accelerate at part-throttle to 38 mph and maintain that speed for at least 90 seconds. Then decelerate with the throttle completely closed to a speed of 18 mph. Do not apply the brakes, turn the steering wheel or turn on the head lights during the test period. Then accelerate back to 38 mph and remain that speed for another 20 seconds. Then decelerate again with the throttle completely closed to a speed of 18 mph. Bring the vehicle to a stop in a safe place, but do not turn off the ignition key.
Check the status of the Readiness code for the EGR System Monitor. It should change to YES. If it does, perform any additional driving under the conditions required to run the remainder of the monitors. If the Readiness code does not change to YES, check for any Pending codes in the Generic OBD II section of the Scan Tool. If no Pending codes are set, and the status did not change to YES, return to step 3 and repeat the test procedure.
and we generally try to do this on the road. i mean......REALLY??
