Ford Transit 2002 Owner's Manual page 1492

E2: CHECK FOR OPEN CIRCUIT BETWEEN THE CONTROL PANEL OF THE CLIMATE
CONTROL SYSTEM AND THE DEHUMIDIFICATION SWITCH
E3: CHECK THE GROUND CONNECTION OF THE DEHUMIDIFICATION SWITCH
Is a resistance of less than 2 Ohm registered?
Yes
CHECK and if necessary RENEW the control panel
for the climate control system. CHECK the operation
of the system.
No
GO to E2.
Disconnect connector C376 from dehumidification
1
switch.
Measure the resistance between the control panel
2
for the climate control system, connector C380, pin
7, circuit 91S-FA20 (BK/YE), wiring harness side
and the dehumidification switch, connector C376,
pin 3, circuit 91S-FA20 (BK/YE), wiring harness
side.
Is a resistance of less than 2 Ohm registered?
Yes
GO to E3.
No
LOCATE and RECTIFY the open circuit in circuit 91S-
FA20 (BK/YE) between the control panel for the
climate control system and the dehumidification
switch with the aid of the Wiring Diagrams. CHECK
the operation of the system.
Measure the resistance between the
1
dehumidification switch, connector C376, pin 1,
circuit 91-FA20 (BK/YE), wiring harness side and
ground.
Is a resistance of less than 2 Ohm registered?
Yes
RENEW the dehumidification switch. CHECK the
operation of the system.
No
LOCATE and RECTIFY the open circuit in circuit 91-
FA20 (BK/YE) between the dehumidification switch
and soldered connection S12 with the aid of the
Wiring Diagrams. CHECK the operation of the
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