Climate Control diagnostics
2002DiscoII and wolf,
I wanted to attach a file with climate control diagnostics instruction, but the file is slightly bigger than what is allowed here. I'll try to PM you the PDF file. Suggest that you run through these diagnostics and see what comes up. May be helpful.
The beginning of the file is like this...
"OBD operation
To read the fault codes, turn off the ignition, hold down the auto and air distribution buttons simultaneously and turn the ignition to position II. All the LCD indicators will be displayed. Shown in the left hand temperature setting are the initials for fault code FC. Any fault codes detected are then displayed where the right hand temperature selection is displayed.
There is a possibility that fault codes 21 and 22 will be displayed. These are the fault codes for the solar sensor. These codes will be shown if the ignition is switched to position II and the vehicle is subjected to reduced ambient light.
To eliminate these fault codes, go through the above procedure again but shine a torch or other light onto the solar sensor. This will eliminate these fault codes. If the position of the windscreen wiper arms is incorrect, the functionality of the solar sensor will be impaired.
Service
Always refer to the vehicle workshop manual when working on the vehicle’s air
conditioning.
All temperature sensors must be serviced as a unit.
A service option available through Unipart (Part No JFQ 100080) is a small link lead which connects into the back of the ATC unit and keeps the temperature reading permanently in degrees Fahrenheit or centigrade, to suit customer preference.
Refer to the workshop manual for the oil and refrigerant capacities and specifications.
hope it helps...
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2001 Discovery SE7
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