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Global OBD II Diagnostics
4
Write down the DTCs for reference and
then press
to return to the
OBD II Function List
.
PENDING CODES
Pending Codes are also referred as “continuous monitor” and “maturing
codes”. An intermittent fault causes the computer to store a code in memory.
If the fault does not occur within 40 warm-up cycles, the code clears from mem-
ory. If the fault occurs a specific number of times, the code matures into a DTC
the MIL illuminates or blinks. This function can be performed with the KOEO or
KOER.
Select Pending Codes and press the
key.
The Scan Tool displays the Pending DTCs or a message stating SYSTEM
PASS: NO FAULT DETECTED.
Use the
arrow key to view the
DTCs or press the
key to return
to the
OBDII Function List.
If any of
these tests indicate a fault, the DTCs
display in the same format as Read
Codes. Use the
arrow keys
to view the pending DTC(s).
Press
to return to the
OBDII Function List
.
ERASE CODES
The Erase Codes function deletes the DTCs from the vehicle’s computer mem-
ory. It may also erase Freeze Frame, O2 Sensor Data, System Monitors, and
On-Board Monitor test results. Perform this function only after the systems have
been checked completely and DTCs have been documented. This function
should be performed with KOEO — Do not START engine.
After servicing the vehicle, delete the stored DTCs and verify no codes have
been reset. If DTCs return, the problem has not been corrected or other faults
are present.
✓ In addition to clearing DTCs, the Erase Codes function may also erase
Freeze Frame, O2 Sensor Data, System Monitors, and On-Board Monitor
test results.