Ford Transit Owner's Handbook Manual page 119

Relay
R12 Heated door mirrors (if CAT 1 alarm is fitted)
R13 Headlamp main beam
R14 Horn
R15 Daytime running lamps
R16 Programmable fuel fired heater
Heated rear windows and heated door mirrors (or heated
R17
rear window left-hand side if Cat 1 alarm is fitted)
R18 Heated rear window right-hand side if Cat 1 alarm is fitted
R19 Power feed (KL15 #2)
R20 Reserved for special vehicle operation use
R21 Power feed (KL15 #1)
R22 Heated windscreen right-hand side
R23 Windscreen wiper high and low function
R24 Rear window wiper
R25 Windscreen wiper on and off function
R26 Heated windscreen left-hand side
Fuses
Circuits switched
117