Engine Brake - One or More Cylinders Braking With Power Switch Off
Cause Corrections
----------
• Electronic Fault Codes Active
• High Counts of Inactive Fault Codes
OK
f
Refer to N14 CELECT™ System Trouble-
shooting and Repair Manual, Bulletin No.
3810469.
----------
Engine Brake Circuit Malfunctioning
• Engine Brake Enable Circuit
• On/Off Switch Circuit
• Clutch Switch Circuit
• Throttle Switch Circuit
• Service Brake Pressure Switch Circuit
OK
f
Check engine brake circuits. Refer to the
following procedures in the N14 CELECT™
System Troubleshooting and Repair Manual,
Bulletin No. 3810469:
• Enable 3-03
• On/Off Switch 2-13
• Clutch Switch 2-07
• Throttle Switch
• Service Brake Pressure Switch 2-06
----------
Top or Bottom O-ring Seal on Solenoid
Valve Leaking
OK
f
Remove solenoid valve and inspect top and
bottom o-ring seals. Replace as necessary.
Refer to the C-Brake Troubleshooting and
Repair Manual, Bulletin No. 3810473.
----------
Plunger in Solenoid Valve Stuck in
‘‘ON’’ Position
OK
f
Be sure there is no voltage at the solenoid.
Refer to the C-Brake Troubleshooting and
Repair Manual, Bulletin No. 3810473.
----------
Inner Control Valve Spring Broken or
Control Valve Stuck in ‘‘ON’’ Position
Inspect inner control valve springs and
control valve. Refer to the C-Brake Trouble-
shooting and Repair Manual, Bulletin No.
3810473. Replace as required.
Troubleshooting Symptoms Charts SectionT-Troubleshooting
N14Page T-28
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