Actron Professional Enhanced Scan Tool 9640A - Manual (Page 72)

Ford Historic Self-Test Routines
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Use the UP/DOWN arrow keys to scroll
through the KOEO Code listing. Be sure
to write down any codes for reference.
Reading IVSC KOER Codes
Select Read KOER Codes from the sub-menu and press ENTER . To retrieve
codes, follow the instructions on the tool screen as follows:
1) Set Parking Brake.
2) Put 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.
During testing, the tool will prompt the user to press the vehicle’s Speed Control
ON Button.
Exhaust gases are harmful or lethal. Always operate vehi-
cle in a well-ventilated area.
The Read KOER test is done with the engine running. Do
not over-rev engine. Observe all safety precautions.
✓
During testing, it is VERY IMPORTANT that each required step be per-
formed when prompted by the scan tool. Failure to perform these steps
may set DTCs in the PCM. Be sure to observe the tool display for indica-
tions to perform these steps.
✓
Do not touch the throttle pedal during testing. The user will be reminded
of this by the scan tool.
Once the codes have been read by the scan tool, it will instruct the user to turn
the ignition key off:
Use the UP/DOWN arrow keys to
scroll through the KOER Codes. Be
sure to write down any codes for ref-
erence.
When done, press FUNC to return to the
Ford Function List .
STAR Test Mode (EEC-IV, MECS and MCU Vehicles)
The STAR Test Mode can be used to retrieve DTCs from the PCM or other
STAR (Self-Test Automatic Readout) compatible controllers installed in the
vehicle. STAR Test Mode functions largely the same way and serves the same
purpose as running KOEO and KOER tests. It is generally used as a last resort
to check for DTCs in systems which may not be covered by KOEO and KOER
testing (i.e. - Computer Ride Control suspension systems).
IVSC KOEO Code 568
SCVAC Failure: Speed
Control Vacuum
Circuit Failure ~
! WARNING
! CAUTION
IVSC KOER Code 37
Low RPM Decrease
Insufficient RPM [
Decrease. ~