Toro Reelmaster 5010-H Diagnostic Manual page 97

4. Test the continuity of the 48 Vdc logic relay.
Note:
You need a multimeter and a 12 Vdc power source to perform this test.
A. Connect the multimeter probes to terminals 30 and 87 of the relay and set the meter to perform
a continuity test.
B. Connect the ground connector of the power source to terminal 86 of the relay.
C. Connect the 12 Vdc positive connector of a power source to terminal 85 of the relay.
Note:
When you connect 12 Vdc to terminal 85 of the relay, you should measure less than 2 ohms
between terminals 30 and 87. When you disconnect the 12 Vdc positive connector from terminal 85, you
should read open (infinite resistance).
Go to Returning the Machine to Service (page 22)
Pass The 48 Vdc logic relay tests were good. Go to Step 5.
Fail One or more of the 48 Vdc logic relay tests failed. Repair or replace the worn or damaged parts. Go
to Returning the Machine to Service (page 22)
Step 5: Test the 48 Vdc power to the logic relay.
1. Set the multimeter to measure Vdc and connect the probes to P32, pin 1 and J24 pin 1.
2. Turn the ignition key to the O
3. Turn the ignition key to the O
Location Harness
1 Main
2 Main
Pass The 48 Vdc logic relay power test was good. Go to Step 6.
Fail The 48 Vdc logic relay power test failed. Repair or replace the worn or damaged parts. Go to
Returning the Machine to Service (page 22)
Step 6: Test the power to the CAN bus isolation module.
1. Set the multimeter to measure DC voltage and connect the probes to pin A and pin B of connector P42.
2. Turn the ignition key to the O
position. You should measure 48 Vdc battery voltage.
N
position.
FF
Connector Pin
P32 1
J24 1 (48 Vdc
Ground)
position. You should measure between 11.5 and 14 Vdc.
N
Figure 67
and follow the steps listed.
and follow the steps listed.
Wire Expected
Color Reading
Yellow
between
46.1 Vdc
and 54 Vdc
Black
and follow the steps listed.
97
Connector Graphic
g032876