Toro 04042, Diagnostic Manual

Page: 42 / 136

Step 4: Use a multimeter to perform pre-charge voltage condition checks.
Note:
You will find additional wire harness and connector information in Appendix A: Wire Harnesses (page 113) and
Appendix B: Toro Electronic Controller Connections (page 135) .
Note:
Inspect the wire harnesses for damage and wear while checking the items in the following steps. Refer to Inspecting the
Wire Harnesses and Component Connector Assemblies (page 13) .
1. Rotate the key switch to the O
FF
position.
2. Rotate the key switch to the S
TART
position and hold it there until the InfoCenter LCD display lights up, then release the
key switch to the R
UN
position.
3. Check for a continuous 42 to 64 Vdc as follows:
•
Measure between the main wire harness P04 connector, pin B ( Figure 46 ), and the main contactor, terminal J02/J05
( Figure 47 ).
•
Measure between the main harness P04 connector, pin B, and the main contactor, terminal J03.
Note:
The 2 voltage measurements should be very similar to each other.
Figure 46
Main Harness P04 Connector Pin Identification
42