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Home >> Ford Truck >> 1999 >> F 450 2WD Super Duty V8-7.3L DSL Turbo VIN F >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Monitors, Trips, Drive Cycles and Readiness Codes >> On-Board System Readiness Test

On-Board System Readiness Test

DESCRIPTION
All OBD II scan tools should display the On-Board System Readiness (OSR) Test. The OSR will display the supported monitors on the vehicle, the status of all monitors (complete or not complete) and the MIL status. If any monitor is not complete, the scan tools will not identify which monitor has not completed. None of the typical OBD II monitors such as catalyst, heated catalyst, evaporative system, secondary air, A/C, HO2S, or the EGR monitors. The values of the monitors are not used. Readiness is reported based on the completeness of the Comprehensive Component Monitors (CCM). Note that Misfire was added in 1999 California models. It is not possible to determine which individual monitors are complete/incomplete. Furthermore, the use of CCM to determine readiness for diesels is a relatively new feature and some scan tools may default to ALL OBD II MONITORS COMPLETE.

ACCESSING ON-BOARD SYSTEM READINESS TEST

New Generation Star
- Perform the necessary vehicle preparation and visual inspection.
- Connect scan tool to DLC.
- Select VEHICLE & ENGINE SELECTION menu (optional).
- Select NEW VEHICLE, YEAR & MODEL.
- Select year, engine, model with the appropriate qualifier, if needed (for example, transmission, 49 States, California).
- Follow operating instructions from the menu.
- Select GENERIC OBD II FUNCTIONS.

NOTE: If all the monitors are not complete, the OSR test will automatically be displayed along with a message.

-- Press TEST button to display OSR test.
- Select ON-BOARD SYSTEM READINESS.

Generic Scan Tool
Refer to the manufacturer's manual for specific instructions.

OBD II PID Data Monitor
The PID monitor for OBD II offers real time evaluation of several emissions-related parameters. Most of these are related to the HO2S and EGR, for which the diesel has no equivalent. The only parameters which apply to 7.3L diesel applications are CONT, IAT, LOAD, MAP, MIL, RPM, and VSS.

ACCESSING THE PID DATA MONITOR

New Generation Star
- Perform the necessary vehicle preparation and visual inspection.
- Connect scan tool to DLC.
- Select VEHICLE & ENGINE SELECTION menu (optional).
- Select NEW VEHICLE, YEAR & MODEL.
- Select year, engine, model with the appropriate qualifier, if needed (for example, transmission, 49 States, California).
- Follow operating instructions from the menu.
- Select GENERIC OBD II FUNCTIONS.
- Select PID DATA MONITOR, choose only diesel-related PIDs.

Generic Scan Tool
- Refer to the manufacturer's manual for specific instructions.

OBD II Pending Codes
Pending codes are codes that have only set during one drive cycle and may not have set the MIL yet. While some codes can set the MIL during one drive cycle, they are not recorded as OBD II DTCs until failing during a second drive cycle. These DTCs may be identified using the Retrieve Pending Codes Feature. Additionally, they will be found in the vehicle-specific mode RETRIEVE/CLEAR CONTINUOUS DTCs from the instant that the code is set.

This function will only report pending failures that have occurred during the present drive cycle, but not indicate single failures that happened on any previous drive cycle.

ACCESSING THE PID DATA MONITOR

New Generation Star
- Perform the necessary vehicle preparation and visual inspection.
- Connect scan tool to DLC.
- Select VEHICLE & ENGINE SELECTION menu (optional).
- Select NEW VEHICLE, YEAR & MODEL.
- Select year, engine, model with the appropriate qualifier, if needed (for example, transmission, 49 States, California).
- Follow operating instructions from the menu.
- Select GENERIC OBD II FUNCTIONS.
- Select RETRIEVE PENDING CODES.

Generic Scan Tool
- Refer to the manufacturer's manual for specific instructions.

Misfire Monitoring Supported
This menu pick can be used to determine if the misfire monitoring system is supported on your particular application. All California emission-equipped vehicles utilize misfire detection for 1999 model year. When selecting this function, a message will be displayed on the screen: "test not supported by this module" or "test supported by this module."

Comprehensive Component Monitoring Supported
This menu pick can be used to determine if the comprehensive component monitoring system is supported on your particular application. All California emission-equipped vehicles utilize comprehensive component monitoring for 1999 model year. When selecting this function, a message will be displayed on the screen: "test not supported by this module" or "test supported by this module."

Misfire Monitoring Status
This menu pick can be used to determine the status of the misfire monitoring system on your particular application. All California emission-equipped vehicles utilize misfire detection for 1999 model year. When selecting this function, a message will be displayed on the screen: "test complete, or not applicable" or "test not complete."

Comprehensive Component Monitoring Status
This menu pick can be used to determine the status of the comprehensive component monitoring system on your particular application. All California emission-equipped vehicles utilize comprehensive component monitoring for 1999 model year. When selecting this function, a message will be displayed on the screen: "test complete, or not applicable" or "test not complete."

PTO Status
This menu pick can be used to determine the status of the PTO system on your particular application. Some transmission OBD II monitors are disabled during PTO and split shaft operation. Vehicle must be out of PTO mode to clear P1000. When selecting this function, a message will be displayed on the screen: "PTO active" or "PTO non active."
















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