Read koer codes – Actron KAL9640B User Manual

Page 77

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Ford Historic Self-Test Routines

6

Continuous Memory Codes (codes set previously under normal driving

conditions) are available after reading KOEO Codes. They are indicated

as Memory Codes by the scan tool and are transmitted after KOEO

Codes.

After viewing and noting the KOEO

codes, use the

DOWN arrow key to view

Continuous Memory codes.
When done, press

FUNC to return to

the Ford Function List.

Read KOER Codes

The Read KOER Codes function activates the KOER

(Key-On-Engine-Running) self-test which retrieves KOER DTCs that are

present 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

performs a Computed Timing Check for EEC-IV vehicles manufactured from

1984 through 1991.

The DTCs are transmitted in two formats which transmit the same information:

Slow Codes are regular service codes that allow the user to identify the

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

transmitted within 3 minutes.

Fast Codes are transmitted within seconds and must be read with a

diagnostic tool. MECS vehicles do not support Fast Codes.

Exhaust gases are harmful or lethal. Always Operate

vehicle in a well-ventilated area.

The KOER test is done with the engine running. Do not

over-rev engine. Observe all safety precautions.

Avoid Cooling Fan! It May Turn On During Test.

Select Read KOEO Codes from the

Ford Function List and press

ENTER.

Memory Code 126
MAP Sensor Signal

]

Voltage Higher or [
Lower Than Expected~

!

WARNING

!

CAUTION

!

CAUTION

Ford Function List ?

1)Read KOEO Codes

` 2)Read KOER Codes [

3)Review Codes

~

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