Service Manual

SECTION 6 - TROUBLESHOOTING
3121231 – JLG Lift – 6-9
1. Ground Control Module (a) 5. Traction Control Module (a) 9. Battery Disconnect (Option)
2. Left Side Battery (b)(c) 6. Power Cable To Left Drive Motor/Brake (a)
3. 175 Amp Fuse 7. Power Cable To Right Drive Motor/Brake (a)
4. Right Side Battery (b)(c) 8. Pump/Motor/Tank Assembly (b)
Ground Control P1 - Horn, Alarm, Beacons, Lift Down Valve Harness (a) P4 - Platform Junction Box Harness (a)
Module Plugs: P2 - PHP, Elevation/Speed, Charger Limit Switch Harness (a) P5 - Joystick Protocol Harness (a)
P3 - Programmable Security Lock Harness (Option) (a)
Notes: (a) Apply di-electric grease JLG Part Number 3020038 to wiring harness terminals, to prevent moisture from entering module.
(b) Seal NEG (–) and POS (+) posts with battery grease to prevent corrosion.
(c) See Section 4 - Figure 4-3. for the optional (4) 6V battery cable connections.
Figure 6-5. Component Electrical Connections.
(+)
(–)
4
(+)
(+)
(+)
(–)
(–)
(–)
(–)
(+)
1
7
6
8
2
3
5
P1
P2
P5
P4
P3
M1 M2
9