✔ Ford Mondeo MK4 - how to enter Climatronic diagnostic self-test, view and clean error codes ✔

Activating the on-board diagnosis function

At the climate control assembly, PRESS the "OFF" and "FOOTWELL" buttons simultaneously for exactly 2 seconds, then PRESS "AUTO" within 1.5 seconds. The on-board diagnosis which then starts lasts a few seconds. An animated display appears in the display of the climate control assembly during this time. Any faults found are displayed on both displays of the climate control assembly in the form of trouble codes.

Example: Left-hand display shows "90", right-hand display shows "B3", i.e. the trouble code read out is 90B3 = short in circuit for right-hand center vents air outlet temperature sensor (short to ground).

The following table gives information on the possible DTCs and their corresponding meanings. By PRESSING the "DEFROST" button, the fault memory is cleared and diagnosis mode is ended. To end the diagnostic mode without clearing the DTCs, PRESS any other button on the climate control assembly.

Reading out of stored faults

At the climate control assembly, PRESS the "OFF" and "FOOTWELL" buttons simultaneously for exactly 2 seconds, then PRESS "HEAD AREA" within 1.5 seconds. Any stored faults are shown on the display of the climate control assembly and should be noted for safety reasons. By PRESSING the "DEFROST" button, the fault memory is cleared and diagnosis mode is ended. To end the diagnostic mode without clearing the DTCs, PRESS any other operating button on the climate control assembly.

Reading out the software version

At the climate control assembly, PRESS the "OFF" and "FOOTWELL" buttons simultaneously for exactly 2 seconds, then PRESS "A/C" within 1.5 seconds. The software version is shown on the display of the climate control assembly. The output mode can be exited by PRESSING any button on the climate control assembly.

Fault code table - Vehicles with EATC
Fault code - diagnostic unit DTC Description Action
B108100 9081 Circuit of left-hand temperature control flap actuator faulty GO to Pinpoint Test I.
B108200 9082 Circuit of right-hand temperature control flap actuator faulty GO to Pinpoint Test H.
B108300 9083 Fault in the circuit of the air recirculation flap actuator GO to Pinpoint Test D.
B108600 9086 Fault in circuit of actuator for air distribution flap GO to Pinpoint Test G.
B10B300 90B3 Fault in circuit of right-hand center vent air outlet temperature sensor GO to Pinpoint Test J.
B10B400 90B4 Fault in circuit of right-hand footwell air outlet temperature sensor GO to Pinpoint Test K.
B10B500 90B5 Fault in circuit of left-hand center vents air outlet temperature sensor GO to Pinpoint Test L.
B10B600 90B6 Fault in circuit of left-hand footwell air outlet temperature sensor GO to Pinpoint Test M.
B10B800 90B8 Circuit for push buttons of control panel for climate control system faulty CLEAR the fault memory.
If the fault occurs again after a functional test, INSTALL a new climate control assembly.
B10B900 90B9 Circuit of blower motor faulty GO to Pinpoint Test B.
B1A6100 9A61 Fault in circuit of interior temperature sensor GO to Pinpoint Test O.
B1A6300 9A63 Circuit of right-hand sun load sensor faulty GO to Pinpoint Test N.
B1A6400 9A64 Circuit of left-hand sun load sensor faulty GO to Pinpoint Test N.
P053500 0535 Fault in circuit of evaporator temperature sensor GO to Pinpoint Test E.
U210000 E100 Incomplete vehicle configuration parameters REFER to: Module Configuration (418-01 Module Configuration, General Procedures).
U210100 E101 Faulty configuration of the climate control assembly REFER to: Module Configuration (418-01 Module Configuration, General Procedures).
U300000 F000 Internal control unit fault CLEAR the fault memory.
If the fault occurs again after a functional test, INSTALL a new climate control assembly.
U300616 / U300617 F006 Supply voltage not within the specified range (9 - 16 V) GO to Pinpoint Test F.
B102E00 902E Ambient air quality sensor faulty CLEAR the fault memory.
If the fault occurs again after a functional test, INSTALL a new ambient air quality sensor.
B10BB00 90BB Circuit for ambient air quality sensor faulty. GO to Pinpoint Test T.

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