Equus 3145 - Digital Ford Code Reader (1981 - 1995) - Manual (Page 32)

Retrieving Codes
KOEO TEST PROCEDURES (EEC-IV SYSTEMS)
29 Chapter 4
14. If any KOEO Self Test Fault Codes were retrieved:
■ Refer to page 46 for "Fault
Code Definitions for EEC-IV
Systems". Match the codes
retrieved with the codes
shown in the Fault Code
Definition list to determine
the fault.
■ Use the code definitions as a guide, and follow the
manufacturer's service procedures in the vehicle's
service repair manual to troubleshoot and repair
faults.
■ All KOEO Self Test codes (except Continuous Memory
Codes) that are received by the Code Reader during
the KOEO Self test represent problems that are
present now (at the time the test is performed). The
related vehicle problems that cause these codes to set
must be repaired using the procedures described in
the vehicle's service repair manual.
■ Do not service "Continuous Memory" codes at this
time. See IMPORTANT note at end of KOEO
procedure for more details.
15. After all repairs have been completed, repeat the KOEO
Self Test. If a “pass code” (code 11 or 111) is received, it
indicates that the repairs were successful, and you can
proceed to perform Ignition Timing Check (see page 30). If
a “pass code” (code 11 or 111) is not received, the repair
was unsuccessful. Consult the vehicle's service manual
and recheck repair procedures.
DO NOT PROCEED TO "IGNITION TIMING CHECK
PROCEDURE " UNTIL A “PASS CODE” (CODE 11 OR
111) FOR "KOEO SELF TEST" IS OBTAINED.
IMPORTANT: Before Continuous Memory codes can be serviced,
both the KOEO and the KOER Self-Tests must pass (a code 11
or 111 is obtained). After both of these tests have passed, erase
the vehicle's computer memory (see page 37), take the vehicle
for a short drive, then repeat the KOEO Self test. If any
Continuous Memory faults are present, service them at this
time. Refer to page 46 for "Fault Code Definitions for EEC-IV
Systems", and consult the vehicle's service repair manual for
servicing Continuous Memory Fault Codes.
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