Skyjack SJ46 AJ+ Service Manual

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229042ABASJ46 AJ+, SJ46 AJ, SJ51 AJ
Electrical System - CE & AS Section 4 – Troubleshooting Information
16. Loose or broken tan/orange wire from ECU
connector pin #83 to throttle actuator RA1.
Check continuity. Replace if defective.
17. Loose or broken light green/red wire from ECU
connector pin #19 to throttle actuator RA1.
Check continuity. Replace if defective.
18. Loose or broken black/light green wire from ECU
connector pin #20 to throttle actuator RA1.
Check continuity. Replace if defective.
19. Loose or broken light blue/dark blue wire from
ECU connector pin #6 to throttle actuator RA1.
Check continuity. Replace if defective.
20. Loose or broken purple/light blue wire from ECU
connector pin #5 to throttle actuator RA1.
Check continuity. Replace if defective.
Fuel Related Problems
With the following conditions:
▪
Gasoline Only
21. Loose or broken pink/tan wire from fuse F7 to
fuel pump relay 56CR.
Check continuity. Replace if defective.
22. Loose or broken red wire from battery positive to
fuel pump relay 56CR.
Check continuity. Replace if defective.
23. Loose or broken tan/black wire from ECU
connector pin #84 to fuel pump relay 56CR.
Check continuity. Replace if defective.
24. Defective fuel pump relay 56CR. Check relay. Replace if defective.
25. Loose or broken pink/yellow wire from fuel pump
relay 56CR to fuse F11.
Check continuity. Replace if defective.
26. Defective fuse F11. Check fuse. Replace if defective.
27. Loose or broken pink/yellow wire from fuse F11
to fuel pump FP.
Check continuity. Replace if defective.
28. Defective fuel pump FP. Check fuel pump by putting 12 volts and a ground
to it. Replace if defective.
29. Loose or broken wire #3002 from fuel pump FP
to GM engine connector 1.
Check continuity. Replace if defective.
30. Loose or broken black/red wire from GM engine
connector to ECU connector pin #86.
Check continuity. Replace if defective.
With the following conditions:
▪
Propane Only
NOTE
The fuel select switch is defaulted to gasoline. The engine will run on gasoline if propane is selected from
the switch and either the switch is bad or a wire is loose or broken from the switch. This is providing there is
nothing wrong on the gasoline side of the system. Disconnect fuel pump to test propane side.
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Skyjack SJ46 AJ+ Specifications

General

Brand	Skyjack
Model	SJ46 AJ+
Category	Boom Lifts
Language	English