Spicer TIMS (Tire Inflation and Monitor System) for Trailers Installation Guide - Manual (Page 34)

31
Troubleshooting
Tire pressure low**
4
End of service code
listing
1st Digit 2nd Digit Description Possible Causes
1
1 Leaking tire**
Repeated inflates of a slow leak in tire or wheel
assembly
2
Tire pressure more than 10% (typical) below target pressure;
Significant air line leak or hose disconnected
Line leak
Air line is leaking between manifold and wheel-end;
Very low tire
5
Supply pressure
low Supply pressure inadequate to check tire pressures for greater
than 24 hours
6
Maximum inflate time
System has been continuously inflating for over 2 hours but
has not reached target
7 System vent failure
System unable to depressurize air lines. Check valve or manifold
contamination. Pressure sensor ground wire disconnected.
2 1
Pressure target out of
range Programmed tire pressure target is outside allowable
range (80-125 psig)
4
1 ECU memory failure Faulty ECU (possible lost historical data)
2
Atmospheric reading
failure System defaults to 14.5 psi reference pressure
3 No target pressure New installation-target pressure must be programmed
4 No sensor signal Pressure sensor wiring disconnected or faulty
5
Low voltage Trailer supply voltage too low for normal operation
5 5
1
6
Lamp-open circuit Disconnected or faulty wire harness, lamp or ECU
2 Lamp-short circuit Faulty wire harness, lamp or ECU
3 Solenoid 1-open circuit Disconnected or faulty wire harness, solenoid or ECU
4 Solenoid 1-short circuit Faulty wire harness, solenoid or ECU
5 Solenoid 2-open circuit Disconnected or faulty wire harness, solenoid or ECU
6 Solenoid-2-short circuit Faulty wire harness, solenoid or ECU
ECU in Diagnostic Mode (Blink Codes)*
*Note: The warning lamp will turn ON continuously for 5 seconds when entering the diagnostic mode.
The lamp will then flash any active two-digit blink codes.
**Note: Following repair of the leaking tire, check all other tires manually for correct tire pressure. If the
system has been maintaining pressure in a leaking tire for an extended period of time, the other tires
may now be slightly above target pressure.