Single Drive Mode
- Start the engine and warm it up completely.
- Clear the DTC from the PCM memory using the M-MDS.
- Verify the following conditions and correct if necessary: All accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
- Verify that all of the following PIDs are within the following specifications. All PIDs must be within specifications from Step 5 to Step 6 . BARO: more than 72.3 kPa {542 mmHg, 21.4 inHg} IAT: 5-35 °C {41-95 °F} FLI: 15-85% VPWR: above 10.9 V
- With the vehicle stopped, race the engine at the engine speed indicated, and then drive the vehicle as shown in the graph. The driving conditions before driving at constant speed are not specified. If possible, monitor RPM PID for engine speed during this procedure. ENGINE SPEED AND VEHICLE SPEED SPECIFICATIONS Step Time Engine speed (rpm) Vehicle speed (km/h {mph}) Vehicle condition 1 T1: More than 10 s Idle 0 {0} Idle the engine after the cooling fan * ' has stopped 2 T2: More than 5 h 0 0 {0} Keep the ignition switch off 3 T3: More than 5 min Idle 0 {0} - 4 T4: 5 min - V1: 65-60 {41-49} 5th (MTX), D range (ATX) 5 T5: 1 min - V2: 79-91 {50-56} 5th (MTX), D range (ATX) 6 T6: 1 min - V3: Above 89 {55} 5th (MTX), D range (ATX) 7 T7: 3 min - V4: 73-88 {464: 73-88 {46-54} 5th (MTX), D range (ATX) 8 T8: Approx. 10 s Approx. 80 km/h (50 mph) - - 9 T9: Approx. 10 s - - Decelerate by engine braking only (10 times) 10 T10: More than 5.5 h 0 0 {0} Keep the ignition switch off
- Turn the ignition switch off.
- Access the ON BOARD SYSTEM READINESS to verify the OBD monitoring status. If completed, all of the OBD monitoring status items change from non-completed to completed. If not completed, turn the ignition switch off, then perform the applicable specific drive mode for any monitoring item that was not in the detection condition.
- Access the DIAGNOSTIC MONITORING TEST RESULTS to verify the monitor results. If detected values are not within specification, repair has not been completed.
- Most OBD II monitors will complete more readily using a steady foot driving style during cruise or acceleration modes. Operating the throttle in a smooth fashion minimizes the time required for monitor completion.
- Fuel tank level should be between 1/2 and 3/4 with 3/4 full being the most desirable.
- The evaporative monitor can operate only during the first 30 minutes of engine operation. When executing the procedure for this monitor, stay in part throttle mode and drive in a smooth fashion to minimize fuel slosh. For best results, follow each of the following steps as accurately as possible
- When bypassing the EVAP/secondary AIR engine soak times, the PCM must remain powered (key ON) after clearing the continuous DTCs and relearning emission diagnostic information.
| OBD Monitor Exercised | Drive Cycle Procedure | Purpose of Drive Cycle Procedure |
|---|---|---|
| Drive Cycle Preparation | Install the scan tool. Turn the key on with the engine off. Cycle the key off, then on. If needed, select the appropriate vehicle and engine qualifier. Clear the continuous DTCs and reset the emission monitors information in the PCM. NOTE: To bypass the EVAP/secondary AIR soak timer (normally 6 hours), the PCM must remain powered after clearing the continuous DTCs and resetting the emission monitors information in the PCM. 2. Begin to monitor the following PIDs (if available): ECT, EVAPDC, FLI and TP MODE. Start the vehicle without returning the key to the OFF position. 3. Idle the vehicle for 15 seconds. Drive at 64 km/h (40 mph) until the engine coolant temperature (ECT) is at least 76.7°C (170°F). | Bypasses the engine soak timer. Resets the OBD monitor status. |
| Prep for Monitor Entry | 4. Is the intake air temperature (IAT) between 4.4 to 37.8°C (40 to 100°F)? If not, complete the following steps, but note that step 14 is required to bypass the EVAP/secondary AIR monitor and clear DTC P1000. | Engine warm-up and provides IAT input to the PCM. |
| HEGO | 5. Cruise at 64 km/h (40 mph) for at least 5 minutes. | Executes the HO2S monitor. |
| EVAP | 6. Cruise at 64 to 89 km/h (40 to 55 mph) for 10 minutes (avoid sharp turns and hills). NOTE: To initiate the monitor, the throttle should be at part throttle, EVAPDC must be greater than 75%, and FLI must be between 15 and 85%, and for fuel tanks over 25 gallons FLI must be between 30 and 85%. | Executes the EVAP monitor if the IAT is between 4.4 to 37.8°C (40 to 100°F). |
| Catalyst | 7. Drive in stop and go traffic conditions. Include 5 different constant cruise speeds, ranging from 32 to 89 km/h (20 to 55 mph) over a 10 minute period. | Executes the catalyst monitor. |
| EGR | Long Term Fuel Bank 1 | % |
| LONGFT2 | 8. From a stop, accelerate to 72 km/h (45 mph) at 1/2 to 3/4 throttle. Repeat 3 times. | Executes the EGR monitor. |
| SEC AIR/CCM (Engine) | 9. Bring the vehicle to a stop. Idle with the transmission in drive (neutral for M/T) for 2 minutes. | Executes the idle air control (IAC) portion of the comprehensive component monitor (CCM). |
| CCM (Trans) | 10. For M/T, accelerate from 0 to 81 km/h (0 to 50 mph), and continue to step 11. For A/T, from a stop and in overdrive, moderately accelerate to 81 km/h (50 mph) and cruise for at least 15 seconds. Stop the vehicle and repeat without overdrive to 64 km/h (40 mph) cruising for at least 30 seconds. While at 64 km/h (40 mph), activate the overdrive, accelerate to 81 km/h (50 mph) and cruise for at least 15 seconds. Stop for at least 20 seconds and repeat step 10 five times. | Executes the transmission portion of the CCM. |
| Misfire and Fuel Monitors | 11. From a stop, accelerate to 97 km/h (60 mph). Decelerate at closed throttle to 64 km/h (40 mph) (no brakes). Repeat this 3 times. | Allows learning for the misfire monitor. |
| Readiness Check | 12. Access the On-Board System Readiness (OBD monitor status) function on the scan tool. Determine whether all non-continuous monitors have completed. If not, GO to step 13. | Determines if any monitor has not completed. |
| Pending Code Check and EVAP/secondary AIR Monitor Bypass Check | 13. With the scan tool, check for pending codes. Conduct the normal repair procedures for any pending code concern. Otherwise, repeat any incomplete monitor. If the EVAP/secondary AIR monitor is not complete and the IAT was out of the 4.4 to 37.8°C (40 to 100°F) temperature range in step 4, or the altitude is over 2438 m (8000 ft.), the EVAP/secondary AIR bypass procedure must be followed. GO to Step 14. | Determines if a pending code is preventing the clearing of DTC P1000. |
| EVAP/secondary AIR Monitor Bypass | 14. Park the vehicle for a minimum of 8 hours. Repeat steps 2 through 12. Do not repeat step 1. | Allows the bypass counter to increment to 2. |
| NOTE |
|---|
| To bypass the EVAP/secondary AIR soak timer (normally 6 hours), the PCM must remain powered after clearing the continuous DTCs and resetting the emission monitors information in the PCM. 2. Begin to monitor the following PIDs (if available): ECT, EVAPDC, FLI and TP MODE. Start the vehicle without returning the key to the OFF position. 3. Idle the vehicle for 15 seconds. Drive at 64 km/h (40 mph) until the engine coolant temperature (ECT) is at least 76.7°C (170°F). |
DRIVE CYCLE RECOMMENDATIONS PROCEDURE CHART
- Attach IDS or equivalent tester and access the ECT, FLI, and IAT PIDs. Verify the IAT PID is between 4-38°C (40-100°F). Verify the FLI PID is between 50% and 75%.
- Warm the vehicle until the ECT PID reaches a minimum of 77°C (170°F).
- Without returning to key OFF, clear all DTCs using IDS or equivalent tester generic OBD II function. DTC P1000 will remain.
- Access the On-Board System Readiness Menu on the IDS or equivalent tester to view the status of the OBD II monitors.
- Proceed with the selected monitor repair verification drive cycle. Once started, the engine must not be turned off.
Note. Once started, the engine must not be turned off during the drive cycle.
- Start the engine and drive the vehicle.
- Drive in stop and go traffic for 20 minutes with at least 4 idle periods.
- Drive on an expressway or highway for 10 to 15 minutes. Access and monitor the IAT PID on the scan tool during the entire highway drive. Heavy accelerations, sudden decelerations or wide open throttles are not recommended on any vehicle. NOTE: If inlet air temperature is below 4°C (40°F) at any time during the highway drive, the Evaporative Emission Monitor will not complete.
- Access the on board system readiness menu to check completion status.
- Rerun Continuous Memory Self-Test to check P1000 code status.
Note. If the Evaporative Emission Monitor is the only monitor not showing completion status on the IDS or equivalent tester and P1000 has been cleared, the OBD II drive cycle has been completed.