Spicer TIMS (Tire Inflation and Monitor System) for Trailers Installation Guide - Manual (Page 31)

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System Set-up
System Set-up
Troubleshooting Learn Mode
Several faults may cause the system not to learn the target.
The following is a list of the most common occurrences.
CAUTION: Use of a battery charger as the power sup-
ply may result in the system not functioning properly.
Service Tool Method
When using a PC or other supported service tool connected to
the diagnostic port, follow the instructions included with the
service tool.
1. Apply 12 volt power to the trailer at the SAE J560
connector.
2. Enter the desired cold temperature tire pressure tar-
get into the ECU using the service tool and then
remove power from the trailer.
3. Reapply power and verify proper operation by select-
ing the manual operation mode in the Diagnostic
Tool. Select pressure check and hold to check for
leaks in the system.
4. Watch for a drop in manifold pressure and listen for
any audible leaks. If a leak is found, take corrective
actions.
5. If any faults have occurred during programming,
clear all historical faults.
Condition Possible Causes
Lamp does not illuminate during power-up Poor electrical connection, power below 9 volts, or burned out lamp
System remains in learn mode (Lamp flashes once every
10 seconds) Supply pressure is below 90 psi minimum
The lamp remains illuminated after the learn mode A fault has occurred, refer to the blink code diagnostics or PC tool
The system reads the tire pressure low Air leaks, supply pressure too low, air line leaks, kinked or restricted
supply line, or not plumbed per installation guidelines.