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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 war m-up cycle s, the co de clears from mem-
ory. If the fault occurs a specific number of times , the code matures int o a DTC
the MIL illuminates or blink s. This function can be perfor med 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 func tion only after the sy stems 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 fault s
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.