Spicer TPCS Troubleshooting Guide User Manual
Page 35
32
Service Codes
Group: 2P! (Code 14)
Deflate Trend (Code 14)
Use diagnostic tool to manually
deflate the tires on each channel.
All tires on each
channel deflate?
Check for conditions preventing vacuum reaching tires:
Restrictions in valve stems (valve cores, filters, rubber, etc.)
Restricted PCU vent line
Loss of vacuum on channel (see 1P! flowchart)
Inoperative or restricted wheel valve
Replace or clean PCU.
Caution: Verify clean (no oil), dry air system on vehicle. This
condition can be caused by contamination in PCU. Reference
PCU Cleaning and Inspection for cleaning procedure.
Verify repair by monitoring
system deflate.
No
Yes
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