On Board Diagnostics II PCED

1999 PCED On Board Diagnostics II

SECTION 5: Pinpoint Tests

QC: OBD II Monitor Testing Not Complete - DTC P1000

QC1 DTC P1000: CHECK FOR OTHER DTCS

Note: Only perform this pinpoint test if a Diagnostic Trouble Code (DTC) P1000 was received from Continuous Memory. Ignore any DTC P1000s in KOEO or KOER.

DTC P1000 indicates that all of the OBD II monitors have not yet been successfully tested.

Were any other DTCs received with the P1000?

Yes	No
GO to Section 4 , Powertrain Diagnostic Trouble Code (DTC) Charts, for Pinpoint Test direction and REPAIR other DTCs.	For vehicles with PTO: GO to QC2 . All others: GO to QC3 .

QC2 CHECK PTO PID

Connect scan tool.
Key on, engine running.
Access PTO STAT PID.
Cycle PTO switch/actuator ON and OFF (follow PTO aftermarket instructions).

Did PTO PID cycle ON, delay, then OFF?

Yes	No
PTO circuit is OK. GO to QC3 .	GO to Pinpoint Test Step FB1 .

QC3 REQUEST TO CLEAR DTC P1000

Note: A complete OBD II Drive Cycle has not yet been performed to clear the DTC P1000 from the PCM.

Has the customer requested the DTC P1000 be cleared from the PCM memory?

Yes	No
PERFORM the OBD II Drive Cycle. (REFER to Section 2 , Drive Cycles.)	INFORM the customer that if the law in this state requires additional driving in order to clear the DTC P1000 from the PCM memory, it must be performed before an inspection/maintenance test.