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Falcon/Fairmont/Fairlane ->
E-Series ->
Climate Control Diagnostics
Ford EA/EB/ED, EF/EL, AU Climate Control Diagnostic Mode
This Document describes the Climate Control Diagnostic Mode, and the information that can be obtained regarding problems with the module.
The Self test mode completes the following,
Calibrates the Blend Servo Mode Door
Completes a continuity check on the sensors, and wiring loom.
Returns an Error code if an error has been detected.
Testing Proceedures
The microcomputer of the control unit self diagnoses incorrect function and will memorise certain faults, should they occur.
This aids in the accurate identification and rapid rectification of a fault.
Depending on the Nature of the fault, the microcomputer will compensate to reduce the effects of the detected fault.
The Detection of the fault is indicated by the display flashing for a period of 6 (six) seconds, after the vehicle has been started.
If a permanent fault occurs in the control unit itself, the system switches off, and outside air is directed to the screen without fan assistance.
Once a fault has been detected, the system retains the error code in the memory and uses the default value until the SELF TEST is run and the fault is rectified.
Self-test can be run again to verify that the problem has been rectified, and is not intermittent.
During the test, the blend door motor is calibrated, and the full hot and full cold motor positions are recorded in the memory of the control unit.
The test also conducts a continuity check on the system to ensure that all the electrical sensors are functioning Correctly.
All the errors should be noted, and the corresponding diagnostic information should be used to help rectify the problem.
Once the fault has been rectified, the self-test should be re-initiated to verify the system is functioning correctly.
The system reverts to 22*C after completing the self test.
Initiating the Climate Control Monitor Mode
The Climate Control Monitor Mode allows viewing of the Actual Climate Control Sensor Readings and settings, Real time.
It also allows bypassing of some of the Climate Control Basic Functions, for assisting in any Diagnostic troubles, and Climate Control Performance Issues.
At Present, this mode of operation is only covered within the AU Factory Workshop manuals, but does in fact actually work on EF/EL and AU model falcons fitted with Climate Control.
Obviously because of this, it is unknown what the buttons other than the Fan Speed Buttons actually do, whilst in this mode of operation.
If anybody has any ideas or opinions on what the other buttons achieve whilst in this mode, then please let myself know, and I will update these pages with the relevant information
To enter Monitor Mode (EF/EL/AU Models)
Turn the Ignition switch to the "On" Position
Press the “MODE”, “A/C”, and “AUTO” Buttons together
Release the “MODE”, “A/C” Buttons together and the “AUTO” Button Last.
To enter Monitor Mode (EA/EB/ED Fairlane/LTD models)
Turn the Ignition switch to the "On" Position
Press the “Recirculate”, “Face/Floor”, and “AUTO” Buttons together
Release the “Recirculate”, “Face/Floor”, Buttons together and the “AUTO” Button Last.
This will now bring you in to the Climate control monitor mode.
Pressing the Fan Up and Down Buttons will toggle the reading that is currently being viewed
The Reading Number that is currently being displayed is shown by the Fan Speed on the LCD Panel.
The Test Readouts available are,
L - (1 Bar) - Operator Set Temperature in degrees Celsius (°C)
2 - (2 Bars) - Cabin Temperature in degrees Celsius (°C)
3 - (3 Bars) - Ambient Temperature in degrees Celsius (°C)
4 - (4 Bars) - Evaporator Temperature in degrees Celsius (°C)
5 - (5 Bars) - Engine Coolant Temperature in degrees Celsius (°C)
6 - (6 Bars) - Sun load Sensor Reading
7 - (7 Bars) - Fan Speed percent (%)
8 - (8 Bars) - Temperature Blend Door Flap percentage (%) opening
9 - (9 Bars) - Aircon and Vent Selection (00 A/C Off Floor) (11 A/C On Face) (22 A/C Off Face/Floor) (33 A/C On Screen/Floor) (4 Screen)
H - (10 Bars) - Water Heater Valve operation (1=On, 0=Off)
To exit this mode, simply switch off the ignition.
As mentioned above, I have very little information on this mode of operation
Any extra information, or feedback in to any other features within this mode are greatly appreciated !
Initiating Diagnostic Mode
Ensure that the engine is warm (At least 45*C) Coolant temperature
Turn the ignition switch to the "ON" Position.
For EA-ED Models, Press the "Floor" and "Off" Buttons Simultaneously and Release. After which, all the Climate Control Panel LED's should Illuminate.
For EF/EL/AU Models, Press the "MODE" and the "OFF" Buttons on the climate control module simultaneously and then release.
The control will display 88.8* during the time required for the self-test to be completed.
When the self-test is complete, and the system checks are OK the display will read "OFF". If the system has a fault the display will read "E" and a number from 1 to 8. In the event that multiple errors have been recorded, they can be viewed by pressing the "AUTO" Button.
rectify the problem and clear the fault from the controller memory by initiating the self-test mode twice.
The self-test can be initiated at any time with the resulting error codes being displayed. Normal operation of the system stops when the self-test is activated. To exit self-test and restart the system, push the "AUTO" button. Self-test should be deactivated before shutting the system off. Refer to the Error Code Key in Table 1 for an explanation of error codes.
