Case 445CT - Fuse and Relay Box Relay - Testing (A.30.A.80.80 - G.40.A.20); 435, 445, 445 Ct

DISTRIBUTION SYSTEMS - ELECTRICA L POWE R SYSTEM
Fuse and relay box Relay - Testing (A.30.A.80.80 - G .40.A.20)
435, 445, 445CT
NOTE: For wirin g diagram refer to Wiring harness - Electrical schematic frame 02 (A.30.A.88 - C.20.E.02)
N°
Te st Point Expected Result
Other Result (Possible Cause)
1
Termin al for wire 178D (B) to
ground.
Continuity
Bad ground circuit.
2
Termin al for wire 190A (R) to
ground.
12 volts
Check the circuit between the main
power relay and the 40 ampere
circuit breaker in the buss bar. Also
check the 40 ampere circuit breaker
and the buss bar.
3
Place the key switch in the ON
position.
Termin al for wire 131A (R) to
ground.
12 volts
Check the circuit between the main
power relay and th e key switch.
Also check the key sw itch. Also
check the reverse polarity diode.
4
Termin al for wire 136A (R) to
ground.
12 volts Bad main power relay.
5
Place the key switch in the ON
position.
Termin al for wire 137E (R) to
ground.
12 volts
Check the circuit between the fuse
block and the main power relay.
Also check the main power relay.
6
Termin al for wire 780A (R) to
ground.
12 volts
Bad20amperefuseormissingfuse.
7
Termin al for wire 830A (R) to
ground.
12 volts
Bad20amperefuseormissingfuse.
8
Termin al for wire 300A (R) to
ground.
12 volts
Bad15amperefuseormissingfuse.
9
Terminal for wires 890B (R) and
890A (O) to ground.
12 volts
Bad10amperefuseormissingfuse.
1 04/05/2005
A.30.A / 99