1997 PCED OBDII-Diesel | SECTION 5C: Pinpoint Tests |
AP: OBD II Readiness Code
AP1 DIAGNOSTIC TROUBLE CODE P1000
Note: If power to the PCM is disconnected, P1000 will be set until the OBD II monitors have run and cleared.
- Diagnostic code P1000 indicates that operating conditions have not been satisfied for all of the OBD II monitors to run.
- Possible causes:
- drive conditions not satisfied
- KAM cleared
- damaged PCM
- Perform all self tests and check continuous codes.
Are DTCs other than P1000 set?
| Yes | No |
|---|
| SERVICE other DTCs according to appropriate pinpoint test before continuing. | GO to AP2. |
AP2 PERFORM MANUFACTURER SPECIFIED DIESEL DRIVE CYCLE
Is P1000 cleared?
| Yes | No |
|---|
| No issue; DTC P1000 cleared. | GO to AP3. |
AP3 VERIFY CERTAIN OPERATING CONDITIONS HAVE BEEN SATISFIED
- Using NGS Scan Tool, monitor EOT, IVPWR and GPC. If vehicle is started and EOT is below 49°C (120°F), IVPWR must be between 11.8v and 14v until the glow plug duty cycle is 0%.
- Using NGS Scan Tool, monitor MFDES and rpm at full load. MFDES must be above 37 MG/stroke for at least 12 seconds with rpm above 2300.
- Monitor MFDES at idle with vehicle warmed up. MFDES must be below 12 MG/stroke for at least 12 seconds.
With the above conditions met, is P1000 cleared?
| Yes | No |
|---|
| No issue; DTC P1000 cleared. | COMPLETE all steps in Section 4C, Performance Diagnostic Procedures to determine DTC clearing issue. |