Loading ...
Loading ...
Loading ...
Ford OBD1 Systems
CODE RETRIEVAL PROCEDURES - KOER TEST
38
Turn the steering wheel 1/2 turn to right, hold for four seconds
and release.
Press the brake pedal to the floor and then release it.
Cycle the Overdrive Switch (if equipped).
Quickly press the accelerator pedal to the floor and then release it.
9. After the above procedures are performed a "One moment please
KOER test is in progress..." message shows temporarily, followed by a
"Retrieving codes" message.
Most Ford EEC-IV vehicle computers up to 1991 use a two-digit
code system. From 1991 to 1995 most use a three-digit code
system.
If the Scan Tool fails to link to the vehicle’s computer, a “Vehicle
is not responding” message shows.
- Verify the ignition is ON.
- Check the cable connections at the Scan Tool and at the
vehicle’s DLC.
- Turn the ignition OFF, wait 10 seconds, then turn back ON to
reset the computer.
- Press ENTER
to continue.
The Scan Tool displays a code only if codes are present in the
vehicle’s computer memory. If no codes are present, a “No
DTC’s are presently stored in the vehicle’s computer” message
is displayed.
10. If no problems are found during the
KOER Self-Test, the computer sends a
"PASS code" (code 11 or 111) to the
Scan Tool.
11. After the Scan Tool retrieves all the
KOER Self-Test DTCs, turn the engine
off, and disconnect the Scan Tool from
the vehicle's test connectors.
All retrieved DTCs will remain in the Scan Tool's memory. If
the KOER Test procedure is performed again, DTC's from a
prior test will automatically clear and will be replaced by the
most current DTCs retrieved.
12. All KOER codes that are retrieved by the Scan Tool during the
KOER Self-Test represent problems that are present now (at the
time the test is performed). The related vehicle problems that
caused the codes to be sent must be repaired using the procedures
described in the vehicle's repair manual.
13. After all repairs have been completed, repeat the KOER Self-Test.
14. If a "pass code" (code 11 or 111) is received, it indicates that the
repairs were successful and all the related systems are working
properly.
15. If a "pass code" (code 111 or 111) is not received, the repair was
unsuccessful. Consult the vehicle's service manual and recheck
repair procedure.
Loading ...
Loading ...
Loading ...