11 The Glow Plug Circuit Is Inoperative - Skyjack SJ63 AJ+ Service Manual

Section 4 – Troubleshooting Information
Fuel Related Problems (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.
31. Loose or broken wire #60 from platform terminal
block to fuel select switch S26.
32. Defective fuel select switch S26.
33. Loose or broken wire #11 from fuel select switch
S26 to plug B pin #3 in platform control console.
34. Loose or broken wire #11 in boom cable B or its
connectors.
35. Loose or broken wire #11 from plug B pin #3 to
engine harness plug.
36. Loose or broken wire #11 from engine harness
plug to GM engine connector 1.
37. Loose or broken tan/brown wire from GM engine
connector 1 to ECU connector pin #42.
38. Loose or broken pink/tan wire from fuse F7 to
propane lock off 2P-56.
39. Loose or broken white/black wire from ECU
connector pin #75 to propane lock off 2P-56.
40. Defective propane lock off 2P-56.
41. Loose or broken pink/dark green wire from fuse
F10 to fuse F9.
42. Defective fuse F9.
43. Loose or broken red/light blue wire from fuse F9
to propane regulator PRV1.
44. Loose or broken black wire from engine ground
to propane regulator PRV1.

4.3-11 The Glow Plug Circuit is Inoperative

1. Defective glow plug fuse FU1 50 amp.
2. Loose or broken wire #03 from start solenoid
57BCR to fuse holder FU1.
229043AAA
140
Check continuity. Replace if defective.
Check switch. Replace if defective.
Check continuity. Replace if defective.
Check continuity between pins #3 on cable B.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check lock off. Replace if defective.
Check continuity. Replace if defective.
Check fuse. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check fuse. Replace if defective.
Check continuity. Replace if defective.
Electrical System - CE & AS
SJ63 AJ+, SJ63 AJ