Troubleshooting, Solenoids – Spicer TPCS Troubleshooting Guide: Older Systems (ECU's w_Dual Connectors) User Manual
Page 30
30
Troubleshooting
Code Description
Codes 7C! through 12C! indicate an electrical fault in the Pressure
Control Unit (PCU). System operation is disabled when these faults are
detected.
The system shuts down in a failsafe mode and turns off the relay power
to the solenoids.
The troubleshooting tree first tests internal solenoid circuitry. Resistance
outside the specified range of 7 to 25 ohms indicates a defective
solenoid. Succeeding steps check continuity of the wire harness circuits
between the Pneumatic Control Unit and the Electronic Control Unit
(ECU). If the problem can be traced to a faulty circuit or connector, make
the necessary repairs. If the troubleshooting routine leads to a problem
with the solenoid itself, the Pneumatic Control Unit must be repaired
or replaced. If both the solenoid and the circuitry check out OK, the
Electronic Control Unit is faulty.
See “Troubleshooting Tips” on page 20 for general guidelines on system
diagnostics.
Code:
7C!, 8C!, 9C!, 10C!, 11C!, 12C!
Type:
Solenoids
7C = Steer
8C = Drive
9C = Trailer
10C = Supply
11C = Deflate
12C = Control
- DSP40 Tandem Axle - Dare to Compare (2 pages)
- Ratio Flex Program Guide (46 pages)
- Italcardano Wing In A Box Product Line (3 pages)
- Vibration Diagnostics (1 page)
- Carrier-To-Housing Joint Leak (6 pages)
- Front Axle Shafts for the Jeep JK (2 pages)
- S400 Helical Gear Retrofit Kit Installation (2 pages)
- Electric Shift Unit (1 page)
- Approved Lubricant (16 pages)
- Tandem Drive Axles Pro-40 Single Reduction and Single Reduction with Differential Lock (102 pages)
- Kingpin Bushing and Seal Installation Instructions (2 pages)
- ROUND BEARING DRIVESHAFT COMPONENTS (11 pages)
- NEW REDESIGNED 40K TANDEM CARRIERS (6 pages)
- HAXL-PNI-34 (1 page)
- Tandem Drive Axles Service Manual S400 (34 pages)
- HAXL-PNI-31 (1 page)
- Single Drive Axles Service Manual: S170, S190, S590 (76 pages)
- PDU Cover & Outer Pinion Support Bearing for 46,000 LB (2 pages)
- 2007 Spicer Driveshafts Service Manual (32 pages)
- DRIVELINE COMPONENTS CATALOG SLIP YOKE ASSEMBLIES (28 pages)
- DualRange Tandem Axles (8 pages)
- S400 Redesigned Power Divider Parts for Service (2 pages)
- Wing Bearing Products U-Joint Identification Chart (1 page)
- 10 Series Driveshafts (86 pages)
- Driveline Components Catalog - Companion Flanges (24 pages)
- Gear & Pinion and Wheel Diff Case Kits Released for D_R170, D_R190 Models (3 pages)
- DST40-(P) (3 pages)
- 22719X, MODEL 44 POWER LOCK DISC AND PLATE KIT (1 page)
- 126155 (1 page)
- 2011 Spicer Bulletin 3; SERVICE_TECHNICAL INFORMATION (1 page)
- Drive Axles Service Manual Single Axles 2-Speed & Double Reduction (34 pages)
- X510-5DSD BILLS OF MATERIAL DODGE CATALOG CORRECTIONS (2 pages)
- Dana “I” Series (2 pages)
- Elimination of PDU Fill Plug On Tandem Drive Axles (2 pages)
- V Drive Components (1 page)
- RST41 (1 page)
- Torsionally Tuned-40 Tandem Drive Axles (2 pages)
- Drive Axles Illustrated Parts List DSS40, DDS40, RSS40, and RDS40 (28 pages)
- Single Drive Axles Service Manual: S140 Series (44 pages)
- DRIVELINE COMPONENTS CATALOG COUPLING SHAFTS - SPL and 10 Series (16 pages)
- Thick Flange Design Carriers (2 pages)
- 2002 Spicer Bulletin; SERVICE_TECHNICAL INFORMATION (1 page)
- Pre-applied Thread Adhesive Compound on Yoke End Nuts (6 pages)
- U-Tube Breather Assembly (2 pages)
- 130542 (1 page)