MTD 700 Series Professional Shop Manual page 141

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NOTE: When working toward the battery, check each junction with the connector disconnected, then re-check
it with the junction reconnected. If there is voltage with the connector unplugged but not when it is con-
nected there is a short between that point and the last connector tested.
NOTE: When working toward the battery, if one junction has lost power, but the next connector has voltage
with its junction still connected, there is an open between the two junctions.
8. Continue checking each connector until the other end of the circuit is reached or the fault is found.
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Figure 7.53
6. Starting with a fully charged battery and battery cable
connections that are clean and tight, measure the
battery voltage. See Figure 7.53.
7. With the circuit energized, start at either end of the
circuit and check for voltage.
• If starting at the battery end of a powered circuit,
trace it through until power vanishes.
• If starting at the ground end of a powered circuit,
trace it through to the point that power appears.
• If there is low voltage at the far end of the circuit,
do a voltage drop test (as described later in this
section) on the circuit to find the source of resis-
tance.
Electrical
135