Actron 9640A manual Read Koer Codes, Ford Function List, SelectFastCodes orSlowCodes

Ford Historic Self-Test Routines

After viewing and noting the KOEO

codes, use the

arrow key to view

Continuous Memory codes.

DOWNTheFUNCKOER test is done withltagethe engineHigherunning.Expected~SignalDo not

When done, press

to return to

the Ford Function List.

Read KOER Codes

The Read KOER Codes function activates the KOER (Key-On-Engine-Run-

ning) self-test which retrieves KOER DTCs that

prese

t when the engine

is running.When the trouble condition is inactive, the KOER Code will no longer

be sent through the data stream. This function also p rforms aComputedTim-

ing Check for EEC-IV vehicles manufactur d from 1984 through 1991.

The DTCs are transmitted in two formats which r

nsmit the same f mation:

• Slow Codes are regular service codes that allow the us r to

dentify the

faults with an analog voltmeter or the check n ine light. Slow codes are

transmitted within 3 minutes.

• Fast Codes are transmitted within seconds and mu t be read with a diag-

nostic tool. MECS vehicles do not support Fast Codes.

Exhaustvehicle ingasesa wellare-ventilatedharmfulLweVMAPSnsemoaror lethal.r.yCdeThanAlwaysorO or[126]ra

! WARNING

! CAUTION

over-rev engine. Observe all s fety precautions.

Avoid Cooling Fan! It May Turn On Dur

Test.

! CAUTION

Select Read KOEO Codes from the

Ford Function List and press

.

Ford

Functin

List

6

Fast or Slow Codes

1)

ad

KOER

Codes[

SelectFastCodes orSlowCodes and

`Select1)Fast23ComputeSlowCodeesTimingype

press

.

ENTER

Follow the instructions step-by-step.

Failure to perform these steps may set

a false DTC in the PCM — observe the

display.

1) Set Parking Brake.

2) Transmission In Park Or Neutral.

3) Turn A/C Off.

4) Start Engine — Let Idle Until Hot.

5) Turn Ign Key Off.

6) Wait 10 Seconds. Start Engine — Let Idle.

7) If Vehicle Has A Manual Transmission, Rel

se Cl

h.

Press

to activate the self-test.

✓ The following actions do not applyENTERto MECS vehicles.

❒ For a 7.3L Diesel, depress the throttle until est is

one.

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