Case 445 - Beacon - Testing (A.40.A.15 - G.40.A.20); 435, 445, 445 Ct; Beacon Switch - Testing (A.40.A.15.83 - G.40.A.20)

DISTRIBUTION SYSTEMS - LIGHTING S YSTEM
Beacon - Testing (A.40.A.15 - G.40.A.20)
435, 445, 445CT
NOTE: For wirin g diagram refer to Wiring harness - Electrical schematic frame 13 (A.30.A.88 - C.20.E.13)
N°
Te st Point Expected Result
Other Result (Possible Cause)
1Bulb
Good
Bad bulb.
2
Termin al for wire 178AG (B) to
ground.
Continuity
Bad ground circuit.
3
Turn the key switch to the ON
position. Turn the rotating beacon
switch to the ON position.
Termin al for wire 766C (P) to
ground.
12 volts
Check the circuit between the
rotating beac on and the rotating
beacon switch. Also check the
rotating beacon switch.
If the readings are good replace the
rotating beacon.
Beacon S witch - Testing (A.40.A.15.83 - G.40.A.20)
435, 445, 445CT
NOTE: For wirin g diagram refer to Wiring harness - Electrical schematic frame 13 (A.30.A.88 - C.20.E.13)
N°
Te st Point Expected Result
Other Resul
t (Possible Cause)
1
Turn the key switch to the ON
position.
Termin al for wire 540E (R) to
ground.
12 volts
Check the circuit between the
rotating b
eaconswitchandthe10
ampfuseintheoptionsfuseblock.
Also check the 10 amp fuse in the
options fu
se block.
2Placethe
rotating beacon switch in
the O N pos ition.
Termin al fo r wire 766B (P) to ground.
12 volts Bad rotat
ing beacon switch.
If the readings are correct and
the indicat or la mp on the rotating
beacon sw
itch does no t illuminate,
proceed to test 3.
3
Termin al for w ire 178BC (B) to
ground.
Continuity Bad ground circuit for rotating
beacon s
witch indicator lamp.
If the readings are correct and
the indicat or la mp on the rotating
beacon s
witch does not illuminate,
replace the rotating beacon switch.
1 04/05/2005
A.40.A / 6