Service Manual

Table Of Contents
Groundsmaster 4500D/4700DPage 5 18Electrical System
Starting Problems
NOTE: Check InfoCenter Display for possible operator
advisories or faults whenever diagnosing machine elec-
trical problems.
Problem
Possible Causes
No electrical power to machine (including gauges). Battery is discharged.
Battery cables are loose or corroded.
Fuse D1 (2 Amp) is faulty.
Fuse D2 (2 Amp) is faulty.
Ground connection on machine is loose or corroded.
The ignition switch or circuit wiring is faulty.
Starter solenoid clicks, but starter will not crank.
NOTE: If the solenoid clicks, the problem is not in the in-
terlock circuit.
Battery is discharged.
Battery cables are loose or corroded.
Ground connection on machine is loose or corroded.
Wiring at the engine starter motor is faulty.
Starter solenoid is faulty.
Starter motor is faulty.
Nothing happens when start attempt is made but
Operator Advisory is displayed on InfoCenter (see
Operator Advisory list in this section).
The traction pedal is not in neutral position.
Operator seat is unoccupied OR the parking brake is
not applied.
The PTO switch is ON (engaged).
Traction pedal position sensor is out of adjustment.
Traction pedal position sensor or circuit wiring is faulty.
Seat switch or circuit wiring is faulty.
Parking brake switch or circuit wiring is faulty.
Engine or fuel system is malfunctioning (see Yanmar
Service Manual).
Nothing happens when start attempt is made.
InfoCenter display operates with the ignition switch in
the ON position. No Operator Advisory displayed on
InfoCenter.
Fuses for TEC controller(s) are faulty (fuse D1 and/or
D2).
Ignition switch or circuit wiring is faulty.
Start relay or circuit wiring is faulty.
Starter solenoid or starter motor is faulty.