Actron 9640 Manuel D’Utilisation

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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 
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
~