18 Angle Transducers At1 And/Or At2 Inoperative; 19 Power Deck Inoperative (If Option Is Installed) - Skyjack SJ3220 Service Manual

Electrical System

4.2-18 Angle Transducers AT1 and/or AT2 Inoperative

1. Control Module CM1 display is broadcasting an
error message.
2. Loose or broken wire #910 from Control Module
CM1 pin #2-7 to B+ on Angle Transducer(s) AT1
(and/or AT2 if equipped).
3. Loose or broken wire #902 from Control Module
pin #P2-3 to GND on Angle Transducer(s) AT1
(and/or AT2 if equipped).
4. Loose or broken wire #28 from Control Module
pin #P2-2 to SIG on Angle Transducer AT1.
5. Loose or broken wire #28A from Control Module
pin #P2-5 to SIG on Angle Transducer AT1 (or
AT2 if equipped)
6. Defective Angle Transducers AT1 and/or AT2.
7. External or internal fault detected by Control
Module CM1.

4.2-19 Power Deck Inoperative (if Option is installed)

1. Control Module CM1 display is broadcasting an
error message.
2. Loose or broken wire #08C from Base Key switch
S10 to Deck Enable switch S12.
3. Open or defective Deck Enable switch S12.
4. Loose or broken wire #08D from Deck Enable
switch S12 to Deck Ext/Ret switch S11.
SJ3220, SJ3226, SJ4720, SJ4726, SJ4732
Section 4 – Troubleshooting Information
Check Control Module display screen and follow
instructions to clear error.
Check continuity. Test for 24V Output voltage
between wire #910 and wire #902 at P6-4.
Use HMI Diagnostic menu to make sure output P2-7
supply is present.
Replace if defective.
Check continuity. Replace if defective.
- Check continuity. Use HMI Diagnostic menu to
make sure proportional input P2-2 signal is present.
- Replace if defective.
Check continuity. Use HMI Diagnostic menu to
make sure proportional input P2-5 signal is present.
Replace if defective.
Check operation. Replace if defective.
Check Control Module display screen. Use
Diagnostic Menu to see switch and sensor status.
Correct trouble code as displayed. Replace module
if defective.
Check Control Module display screen and follow
instructions to clear error.
Check continuity. Replace if defective.
Check switch.
Check continuity between wire #08C and wire
#08D on switch
Replace switch if no continuity when operating
switch.
Check continuity. Replace if defective.
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