Description of On Board Diagnostic (OBD) Drive Cycle
The following procedure is designed to execute and complete the OBD monitors and to clear the Ford P1000, I/M readiness code. To complete a specific monitor for repair verification, follow steps 1 through 4, then continue with the step described by the appropriate monitor found under the OBD Monitor Exercised column. For the EVAP monitor to run, the ambient air temperature must be between 4.4 to 37.8°C (40 to 100°F), and the altitude below 2,438 meters (8,000 feet). If the P1000 code must be cleared in these conditions, the PCM must detect them once (twice on some applications) before the EVAP monitor can be bypassed and the P1000 cleared. The EVAP bypassing procedure is described in the following drive cycle.
The OBD drive cycle will be carried out using a diagnostic tool. Consult the instruction manual for each described function.
The following procedure is designed to execute and complete the OBD monitors and to clear the Ford P1000, inspection/maintenance (I/M) readiness code. To complete a specific monitor for repair verification, follow steps 1 through 4, then continue with the step described by the appropriate monitor found under the OBD Monitor Exercised column. For the EVAP monitor to run, the ambient air temperature must be between 4.4 to 37.8°C (40 to 100°F), and the altitude below 2,438 meters (8,000 feet). If the P1000 code must be cleared in these conditions, the powertrain control module (PCM) must detect them once (twice on some applications) before the EVAP monitor can be bypassed and diagnostic trouble code (DTC) P1000 is cleared. The EVAP bypassing procedure is described in the following drive cycle.
The OBD drive cycle is carried out using a scan tool. Refer to the manufacturer's instruction manual for each described function.
The following procedure is designed to execute and complete the OBD monitors. To complete a specific monitor for repair verification, follow steps 1 through 4, then continue with the step described by the appropriate monitor found under the OBD Monitor Exercised column. For the evaporative emissions (EVAP) monitor to run, the ambient air temperature must be between 3.75 to 40°C (38.8 to 104°F), and the altitude below 2,438 meters (8,000 feet).
Use a scan tool to carry out the OBD drive cycle. Refer to the scan tool manufacturer's instruction manual for each described function.
Description
| CAUTION | Strict observance of posted speed limits and attention to driving conditions are mandatory when proceeding through the drive cycle. |
Note. Vehicles equipped with power take-off (PTO) or auxiliary idle control must have that system disengaged before the OBD drive cycle is initiated.
The primary intention of the OBD drive cycle is to clear the DTC P1000 and to satisfy the specifications for the Society of Automotive Engineers (SAE) specification J1979. Each OBD monitor must run during the drive cycle.
If the drive cycle is completed and P1000 is not cleared, repeat the entire drive cycle. If a particular step is interrupted, simply repeat the drive mode. If the drive cycle is interrupted with a key-off, only drive modes that were incomplete must be run.
Rough road conditions may prevent certain steady state conditions and steady accelerations from validating the transmission and load-related monitors.
Note. Strict observance of posted speed limits and attention to driving conditions are mandatory when proceeding through the drive cycle.
Note. Vehicles equipped with power take-off (PTO) or auxiliary idle control must have that system disengaged before the drive cycle is initiated.
The primary intention of the drive cycle is to clear the DTC P1000 and to satisfy the specifications for the Society of Automotive Engineers (SAE) specification J1979. Each on board diagnostic (OBD) monitor must run during the drive cycle.
If the drive cycle is completed and DTC P1000 is not cleared. Repeat the entire drive cycle. If a particular step is interrupted, simply repeat the drive mode. If the drive cycle is interrupted with a key OFF, only drive modes that were incomplete must be run.
Rough road conditions may prevent certain steady state conditions and steady accelerations from validating the transmission and load-related monitors.
Some monitors may require extended driving.
Note. Strict observance of posted speed limits and attention to driving conditions are mandatory when proceeding through the drive cycle.
Note. Vehicles equipped with power take off (PTO) or auxiliary idle control must have that system disengaged before the drive cycle is initiated.
The intention of the drive cycle is to satisfy the specifications for the Society of Automotive Engineers (SAE) specification J1979. Each on board diagnostic (OBD) monitor must run during the drive cycle.
If a particular step is interrupted, simply repeat the drive mode. If the drive cycle is interrupted with a ignition OFF, only drive modes that were incomplete must be run.
Rough road conditions may prevent certain steady state conditions and steady accelerations from validating the transmission and load-related monitors.
Some monitors may require extended driving.
Primary function of drive cycle procedure is to clear DTC P1000 and to satisfy specifications for SAE J1979. Each OBD-II monitor must run during drive cycle.
If drive cycle has been completed and DTC P1000 is not cleared, repeat entire drive cycle. If a particular step is interrupted, repeat drive mode. If drive cycle is interrupted with a key-off, only drive modes that were incomplete must be run.
| CAUTION | Strict observance of posted speed limits and attention to driving conditions are mandatory when proceeding through the drive cycle. |
Rough road conditions may prevent certain steady state conditions and steady accelerations from validating the transmission- and load-related monitors.
Vehicles equipped with Power Take-Off (PTO) must have that system disengaged before the OBD II drive cycle is initiated.
The following procedure is designed to execute and complete the OBD monitors and to clear the Ford DTC P1000. To complete a specific monitor for repair verification, follow steps 1 through 4, then continue with the step described by the appropriate monitor found under the OBD monitor exercised column. When the ambient air temperature is not between 4° to 37°C (40° to 100 °F), or the altitude is above 2,438 meters (8,000 feet), the EVAP monitor does not run. If the DTC P1000 must be cleared in these conditions, the powertrain control module (PCM) must detect them once before the EVAP monitor can be bypassed and the P1000 cleared. The EVAP bypassing procedure is described in the following drive cycle.
The OBD drive cycle is carried out using a diagnostic tool. Consult the instruction manual for each described function.
The following procedure is designed to execute and complete the OBD monitors and to clear the Ford DTC P1000. To complete a specific monitor for repair verification, follow steps 1 through 4, then continue with the step described by the appropriate monitor found under the OBD monitor exercised column. When the ambient air temperature is not between 4° to 37°C (40° to 100°F), or the altitude is above 2,438 meters (8,000 feet), the evaporative emissions (EVAP) monitor does not run. If the DTC P1000 must be cleared in these conditions, the powertrain control module (PCM) must detect them once before the EVAP monitor can be bypassed and the P1000 cleared. The EVAP bypassing procedure is described in the following drive cycle.
The OBD drive cycle is carried out using a scan tool. Refer to the manufacturer's instruction manual for each described function.
| WARNING | STRICT OBSERVANCE OF POSTED SPEED LIMITS AND ATTENTION TO DRIVING CONDITIONS ARE MANDATORY WHEN PROCEEDING THROUGH THE FOLLOWING DRIVE CYCLES. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY. |
- Most OBD monitors 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 full with 3/4 full being the most desirable.
- The evaporative monitor can only operate 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.
- When bypassing the EVAP engine soak timer, the PCM must remain powered (ignition in ON position) after the clearing the continuous DTCs and relearning emission diagnostic information.
For best result, follow each of the following steps as accurately as possible
| OBD Monitor Exercised | Drive Cycle Procedure | Purpose of Drive Cycle Procedure |
|---|---|---|
| Drive Cycle Preparation | 1. Install the scan tool. Turn the ignition ON with the engine OFF. Cycle ignition OFF, then ON. Select appropriate vehicle and engine qualifier. Clear the continuous diagnostic trouble codes (DTCs) and reset the emission monitors information in the powertrain control module (PCM). | Bypass the engine soak timer. Resets OBD Monitor status. |
| 2. Begin to monitor the following PIDs (if available): ECT, EVAPDC, FLI and TP MODE. Start the vehicle WITHOUT returning the ignition to the OFF position. | ||
| 3. Idle the vehicle for 15 seconds. Drive at 64 km/h (40 mph) until the ECT is at least 76°C (170°F). | ||
| Prep for Monitor Entry | 4. Is IAT within 4° to 37°C (40° to 100°F)? If not, complete the following steps, but note that step 13 is required to bypass the EVAP monitor and clear the P1000. | Engine warm-up and provide IAT input to the PCM. |
| HO2S | 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%. | Executes the EVAP monitor if the IAT is within 4° to 40°C (40° to 100°F). |
| Catalyst | 7. Drive in stop-and-go traffic conditions. Include 5 different constant cruise speeds, ranging from 32 to 112 km/h (20 to 70 mph) over a 10 minute period. | Executes the catalyst monitor. |
| EGR | 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. |
| CCM (Engine) | 9. Bring the vehicle to a stop. Idle with the gear selector in DRIVE position for 2 minutes. | Executes the idle air control portion of the CCM. |
| Misfire & Fuel Monitors | 10. Profile learning is carried out after the PCM commands engine shutdown, the fuel injectors are disabled and the generator motor spins the engine. After the profile is learned, the engine shuts down. The profile learning may require up to 4 seconds. The traction battery must be within its operating limits to carry out the profile learning. | Allows learning for the misfire monitor. |
| Readiness Check | 11. Access the on-board system readiness (OBDII monitor status) function on the scan tool. Determine whether all non-continuous monitors have completed. If not, go to step 12. | Determines if any monitor has not completed. |
| Pending Code Check and EVAP Monitor Bypass Check | 12. With the scan tool, check for pending codes. Conduct normal repair procedures for any pending code concern. Otherwise, repeat any incomplete monitor. If the EVAP monitor is not complete and IAT was out of the 4° to 37 °C (40° to 100°F) temperature range in step 4, or the altitude is over 2,438 m. (8,000 ft.), the EVAP bypass procedure must be followed. Go to Step 13. | Determines if a pending code is preventing the clearing of DTC P1000. |
| EVAP Monitor Bypass | 13. Park the vehicle for a minimum of 8 hours. Repeat steps 2 through 12. Do not repeat step 1. | Allow the bypass counter to increment to 2. |
| 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%. |
EMISSION DIAGNOSTIC INFORMATION
The following procedure is designed to execute and complete the OBD monitors and to clear the Ford DTC P1000. To complete a specific monitor for repair verification, follow steps 1 through 4, then continue with the step described by the appropriate monitor found under the OBD monitor exercised column. When the ambient air temperature is not between 4° to 37°C (40° to 100°F), or the altitude is above 2,438 meters (8,000 feet), the evaporative emissions (EVAP) monitor does not run. If the DTC P1000 must be cleared in these conditions, the powertrain control module (PCM) must detect them once before the EVAP monitor can be bypassed and the P1000 cleared. The EVAP bypassing procedure is described in the following drive cycle.
The OBD drive cycle is carried out using a scan tool. Refer to the manufacturer's instruction manual for each described function.