Ford Transit 2002 Owner's Manual page 1480

C26: CHECK VOLTAGE AT REFRIGERANT HIGH-PRESSURE SWITCH
C27: CHECK REFRIGERANT HIGH-PRESSURE SWITCH
C28: CHECK THE VOLTAGE AT THE CONTROL PANEL OF THE CLIMATE CONTROL
SYSTEM - PIN 8
No
RENEW the air conditioning clutch relay. CHECK and
if necessary RENEW the refrigerant compressor
clutch diode. CHECK the operation of the system.
Ignition switch in position 0.
1
Disconnect connector C882 from refrigerant high-
2
pressure switch.
Ignition switch in position II.
3
Switch on the blower.
4
Switch on the air-conditioning system.
5
Measure the voltage between the A/C high
6
pressure switch, connector C882, pin 1, circuit
15S-FA38 (GN/RD), wiring harness side and
ground.
Does the meter display battery voltage?
Yes
GO to C27.
No
Vehicles built up to
Vehicles built from 07/2006:LOCATE and REPAIR
the break in circuit 91-FA38 (BK/OG) between the
refrigerant high-pressure switch and soldered
connection S118 using the Wiring Diagrams. CHECK
the operation of the system.
Ignition switch in position 0.
1
Measure the resistance at the A/C high pressure
2
switch, connector C882, between pin 1 and pin 4,
component side.
Is a resistance of less than 2 Ohm registered?
Yes
LOCATE and RECTIFY the break in circuit 15S-FA17
(GN/OG) (vehicles built from 07/2006: circuit 91S-
FA17 BK/RD)) between the refrigerant low- pressure
switch and the refrigerant high- pressure switch with
the aid of the Wiring Diagrams. CHECK the
operation of the system.
No
RENEW the refrigerant high- pressure switch. CHECK
the operation of the system.
Ignition switch in position 0.
1
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07/2006:GO to C28.