Front Right Wheel Sensor Out Of Range High - JLG 1250AJP Troubleshooting Manual

SECTION 1 - FAULT DICTIONARY AND SELECTED TROUBLESHOOTING

1.101 FRONT RIGHT WHEEL SENSOR OUT OF RANGE HIGH

Flash Code: 8-6
Front right wheel sensor out of range high. The control system detected the front right steer angle sensor value was above
the electrical maximum. This may be due to a short to battery or a wiring problem.
Note Pretest Instructions
1.101.1
1.101.2 Extend axles. Enable crab
steering mode. Go to ANA-
LYZER ⇒ DIAGNOSTICS ⇒
DRIVE ⇒ L FRONT WHEEL
ANGL.
1.101.3 Swap front right wheel sen-
sor [X200] with a sensor
that doesn't have a fault.
1.101.4
1.101.5 Disconnect front right wheel
sensor [X200]
1.101.6 Disconnect front right wheel
sensor [X200] and chassis
module J3 [X231]
1.101.7 Disconnect front right wheel
sensor [X200] and front
right steer passthru - 4 pos.
[X201]
1.101.8 Disconnect front right steer
passthru - 4 pos. [X201].
Turn on machine.
1.101.9 Disconnect chassis module
J3. Turn on machine.
1-84
Test
Is the front right steer angle sensor [X200]
installed and connected properly?
Observe angle while operating steering. Steer
fully to the left. Check all wheel angles. They
should be within 2 °. Return to R FRONT
WHEEL ANGL analyzer screen. Steer to right
about two seconds while monitoring the value.
Repeat checks. Repeat process for entire
swing of wheel. Did the value, while steering,
pause, jump or act erratically? -OR- Was the
right front wheel angle more than 2° difference
from other wheels?
Check faults. Does the new location now have
a wheel sensor out of range high fault?
Calibrate steering. Does fault clear?
Turn on machine. Is there 5VDC between front
right wheel sensor socket A [X200.A.soc] and
socket C [X200.C.soc]?
Is there continuity between front right wheel
sensor socket B [X200.B.soc] and chassis
module J3 socket 2 [X231.2.soc]?
Is there continuity between front right wheel
sensor socket B [X200.B.soc] and front right
steer passthru pin 2 [X201.2.pin]?
Is there 5VDC between front right steer
passthru socket 1 [X201.1.soc] and socket 3
[X201.3.soc]?
Is there 5VDC between chassis module J3 pin
1 [X231.1.pin] and pin 3 [X231.3.pin]?
1250AJP
Result Corrective Action
Yes Go to step 1.101.2
No Repair as needed
Yes Go to step 1.101.3
No Go to step 1.101.5
Yes Replace sensor originally at the front right wheel.
No Go to step 1.101.4
Yes Troubleshooting complete
No Go to step 1.101.5
Yes Keep sensor disconnected.
Go to step 1.101.6.
No Go to step 1.101.8
Yes Reprogram/replace ground module
No Keep front right wheel sensor [X200] discon-
nected.
Go to step 1.101.7
Yes Repair harness between front right steer passthru
socket 2 [X202.2.soc] and chassis module J3
socket 2 [X231.2.soc]
No Repair/replace harness between front right wheel
sensor socket B [X200.B.soc] and front right
steer passthru pin 2 [X201.2.pin]
Yes Repair/replace harness between front right steer
passthru [X201] and front right wheel sensor
[X201]
No Go to step 1.101.9
Yes Repair/Replace harness between front right steer
passthru [X201] and chassis module J3 [X231]
No Replace chassis module
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