Standard Drive Mode

NOTE: Eight hour cold soak time may be shortened by 3 hours depending on conditions. If soak period is shortened, PCM may detect a malfunction even after repairs. This may happen during warm or hot ambient conditions.

If not performing EVAP monitor repair verification drive mode, go to next step. If performing EVAP monitor repair verification drive mode, cold soak vehicle for 8 hours first. In cold weather conditions, 8 hour cold soak time may not be necessary and can be shortened by 3 hours. To shorten cold soak, go to step 4.
Connect scan tool. Turn all accessories off. Start engine. Accelerate to 40 MPH within 20 seconds. Drive vehicle at 35-45 MPH for 5.5 minutes. Accelerate to 50-60 MPH within 10 seconds and remain at that speed for at least 2 minutes. Stop vehicle and allow to idle for 20 seconds or more.
Access ON BOARD SYSTEM READINESS menu of GENERIC OBD II FUNCTIONS to check drive mode completion status. RFC should change from NO to YES when test is complete. If test is not complete, repeat previous step. If test is complete, check test results in DIAGNOSTIC MONITORING TEST RESULTS menu of GENERIC OBD II FUNCTIONS. If results are okay (MEAS are within specification), ensure no DTCs are present. If no DTCs are present, repairs are complete. If results are not okay (MEAS are not within specification), repairs are not complete.
To by-pass 8 hour soak time, cool fuel tank as much as possible. Connect scan tool. Turn ignition on. Access CLEAR DIAGNOSTIC CODES menu of GENERIC OBD II FUNCTIONS. Press TRIGGER to reset timer. Leave ignition on. Perform drive mode test.