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Section 4 – Troubleshooting Information Electrical System
4.2-11 Right Steer Inoperative
1. Control Module CM1 display is broadcasting an
error message.
Check Control Module display screen and follow
instructions to clear error.
2. Lift//Off/Drive switch S3 is set to an incorrect
mode.
Select Drive. Check switch. Replace if defective.
3. Defective Right Steer switch S7-2.
Check switch.
Check continuity between wire #08 and wire #23
on switch. (Right Steer signal)
Replace switch if no continuity when operating
switch.
4. Loose or broken wire #23 from Right Steer
switch S7-2 to Control Module CM1 pin #P3-8.
Check continuity. Test for 24V Input voltage
between wire #23 and wire #00.
Use HMI Diagnostic menu to make sure input P3-8
signal is present.
Replace if defective.
5. Loose or broken wire #23A from Control Module
CM1 pin #P5-8 to Right Steer valve coil 4H-23A.
Check continuity. Test for 24V Output voltage
between wire #23A and wire #00.
Use HMI Diagnostic menu to make sure output P5-8
signal is present.
Replace if defective.
6. Loose or broken wire #00 from Battery (-) to
Right Steer valve coil 4H-23A.
Check continuity. Replace if defective.
7. Defective Right Steer valve coil 4H-23A. Check continuity through coil. Replace if defective.
8. External or internal fault detected by Control
Module CM1.
Check Control Module display screen. Use
Diagnostic Menu to see switch and sensor status.
Correct trouble code as displayed. Replace module
if defective.
4.2-12 Left Steer Inoperative
1. Control Module CM1 display is broadcasting an
error message.
Check Control Module display screen and follow
instructions to clear error.
2. Lift//Off/Drive switch S3 is set to an incorrect
mode.
Select Drive. Check switch. Replace if defective.
3. Defective Left Steer switch S7-3.
Check switch.
Check continuity between wire #08 and wire #24
on switch (Left Steer signal).
Replace switch if no continuity when operating
switch.
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