Spicer TPCS (Tire Pressure Control System) Operator Control Panel (OCP) - Manual

TPCS Service Code Summary
Pneumatic Codes
1P!
No Deflate Modes No deflate allowed Hose or seal leaks, or contaminated PCU
2P! Deflate Trend Inflate only Failed to deflate properly. Contaminated PCU
3P! Vacuum Generation No operation Contaminated PCU
4P!* Between Modes Channel checks pressure Slow inflate or deflate: Restricted hoses, dryer or compressor
5P! Low Pressure Channel checks pressure Large hose or seal leak
7P! No Air Supply Non-operative Compressor cutout too low or bad pressure switch or connection
8P! Pressure Reading Non-operative Bad pressure sensor or connection
9P! Inflate Trend Channel disabled Lost pressure during inflate: Damaged tire or leaking hoses, seals or wheel valve
10P!* Tire Leak Channel disabled Damaged tire, leaking wheel valve hose or wheel valve stuck open
11P!* Tire Leak
Channel disabled
Damaged tire, leaking hoses or seals
No Codes
Blank OCP Non-operative Blown fuse or poor electrical connection
Faulty Trailer Detect No trailer on display Wheel valve not shut off
Faulty Trailer Detect Continuous trailer on display Trailer coupling leak
Electrical Codes System Effect Possible Causes
1C! Power No operation Low Power
3C! Speed Sensor Inflate Only Bad connection or no speed signal
5C! PCU Sensor No operation PCU sensor damaged or poor electrical connection
7-12C! PCU Solenoid No operation Solenoid does not pass electrical diagnostics
* Indicates RUN FLAT will override - check tires before proceeding.
Spicer
®
TPCS (Tire Pressure Control System)
Operator Control Panel (OCP)