RING 4J4605 - Caterpillar

Engine: C11 (S/N: KCA1-UP) C13 (S/N: KCB1-UP; LEE1-UP) C15 (S/N: SDP1-UP; BXS1-UP; MXS1-UP; NXS1-UP) C7 (S/N: KAL1-UP; SAP1-UP; C7S1-UP; WAX1-UP) C9 (S/N: MTB1-UP; MFF1-UP; 9DG1-UP; C9S1-UP)Introduction
This Special Instruction will provide instructions for installation, configuration and troubleshooting of the Product Link PL421.Important Safety Information
Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs.A person must be alert to potential hazards. This person must also have the necessary training, skills, and tools in order to perform these functions properly.Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance of a potential hazard. Therefore, the warnings in this publication and the warnings that are on the product are not all inclusive. Avoid using a tool, a procedure, a work method, or operating technique that is not recommended by Caterpillar. If used, ensure the safety of the operating personnel and others. Ensure that the product will not be damaged or the product will be made unsafe by the operation, lubrication, maintenance, or the repair procedures.
Structural damage, an overturn, modification, alteration, or improper repair can impair this structure's protection capability thereby voiding this certification. Do not weld on or drill holes in the structure. Consult a Caterpillar dealer to determine this structure's limitations without voiding its certification.
PL421 System Components
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386-3004 Communication Electronic Control Module (PL421)
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375-6374 Antenna
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Vocational truck harness 394-8813 Communication Wiring Gp PL421 Wiring Schematic
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PL421 Connector
Table 1
PL421 14-Pin Connector Wiring Chart    
PL421 Connector Pin    Function    
1     Battery +    
2     Battery -    
3     Key Switch    
4     R Terminal    
5     N/A    
6     N/A    
7     N/A    
8     Digital Output 2: 5 V Control    
9     Digital Input 2: Tamper    
10     Digital Input 1: Exception Alert    
11     J1939 -    
12     J1939 +    
13     Digital Output 1: Relay Out    
14     Digital Input 3    Instructions for Installing the PL421 Unit on a Truck
Tools and Supplies
T20 Torx type screw driver
Drill
Non-residue alcohol wipes (1 per unit)
Tyco pin removal tool
Industrial Velcro® with adhesive backing
Tie wraps (at least 4 inches long)
Circuit tester or Volt/ Ohm/ Meter
Fuse holder assembly (one per truck)
1 Amp fuse (one per truck)
Wire butt splices (2 per truck) for 18 Gauge wirePreparing the Cab
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Behind glove box location