ELECTRICAL
4203781 First Edition 4-67
4
Cruise Control Circuit
Symptom: Cruise control magnet does not energize.
Work Light Circuit
Symptom: Work lights do not turn on.
Probable Cause Remedy
Tripped 10-amp circuit breaker (F6). Reset circuit breaker.
Faulty brake pedal switch. Test brake pedal switch. (See “Micro Switches Test” on page 4-82.)
Faulty cruise control switch. Test cruise control switch. (See “Cruise Control Switch Test” on page 4-81.)
Faulty cruise relay. Test cruise relay. (See “Relays Test” on page 4-75.)
Faulty cruise cancel relay. Test cruise cancel relay. (See “Relays Test” on page 4-75.)
Faulty wire harness. Measure continuity between 10-amp circuit breaker (F6) and the horn relay. Continuity
must be indicated.
Measure continuity between the horn relay and the brake pedal switch. Continuity must
be indicated.
Measure continuity between the brake pedal switch and the cruise control switch.
Continuity must be indicated.
Measure continuity between the cruise control switch and cruise relay terminal 30 (wht
wire). Continuity must be indicated.
Measure continuity between the cruise control switch and cruise relay terminal 86
(wht/grn wire). Continuity must be indicated.
Measure continuity between the cruise control switch and cruise cancel relay terminal 30
(wht/grn wire). Continuity must be indicated.
Measure continuity between the cruise control switch and cruise cancel relay terminal 86
(wht/red wire). Continuity must be indicated.
Measure continuity between cruise relay terminal 87 and cruise cancel relay terminal
87A. Continuity must be indicated.
Measure continuity between cruise relay terminal 87 and the cruise control magnet.
Continuity must be indicated.
Measure continuity between ground and the cruise control magnet ground terminal.
Continuity must be indicated.
Probable Cause Remedy
Tripped circuit breaker (F7). Reset breaker.
Faulty light switch. Test light switch. (See “Wing Mow Enable and Light Switches Test” on page 4-79.)
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