Qualcomm OBDII J1708 Anleitung zur Fehlerbehebung PDF herunterladen (Seite 50)

Problem: Cellular Signal Strength Fails Cellular Signal Strength Problems

15-2 80-JB566-1 Rev. C

MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION

1. Verify that the truck is at a location where there is known to be good cellular coverage.

2. Check to ensure there are no metal obstructions above the antenna.

3. If there are no obstructions, inspect the antenna and antenna cable to ensure there is

no damage.

4. Reseat both antenna connections at the VTM. Allow a few minutes to reacquire a

cellular signal.

5. If there is still a problem, test with known good antenna.

6. If it continues to have problems, test with known good VTM.

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Installation and 1
Troubleshooting 1
QUALCOMM Incorporated 2
5775 Morehouse Drive 2
San Diego, CA 92121-1714 2
Installation Contents 3
iv 80-JB566-1 Rev. C 4
Important Safety Information 5
Component Overview 7
Display Holster 8
RAM Mount 8
Backing Plate 8
Activation 9
Online Activation Activation 10
2-2 80-JB566-1 Rev. C 10
80-JB566-1 Rev. C 2-3 11
Activation Online Activation 11
Application Management 12
80-JB566-1 Rev. C 2-5 13
2-6 80-JB566-1 Rev. C 14
Installation Planning 15
Installing the VTM50 17
Securing the VTM50 18
Using Self-Drilling Screws 18
Antenna Installation 19
Installing Antenna 20
Selecting a Mounting Location 21
Installing the Display 22
Power/IO Cable Connection 25
Extending MCP50 Ignition Wire 26
Optional Accessories 27
PTO Installation 28
System Verification 31
9-4 80-JB566-1 Rev. C 34
Troubleshooting Contents 35
80-JB566-1 Rev. C 36
Troubleshooting Guidelines 37
Replace Only Faulty Parts 38
08AAA_05 40
80-JB566-1 Rev. C 11-3 41
(-) lead on Pin A 41
(+) lead on Pin B 41
11-4 80-JB566-1 Rev. C 42
DIU Problems 43
Cannot Send Messages 45
13-2 80-JB566-1 Rev. C 46
Cellular End to End Problems 47
14-2 80-JB566-1 Rev. C 48
CDD Database Sync Problem 51
16-2 80-JB566-1 Rev. C 52
GPS Fix Problem 53
18-2 80-JB566-1 Rev. C 56
19-2 80-JB566-1 Rev. C 58
Ignition On Detection Problem 59
20-2 80-JB566-1 Rev. C 60
Core Data Problem 61
VTM LED Indicator 63
22-2 80-JB566-1 Rev. C 64
Acquiring Network Problem 65
System Overview 67
Normal Performance 67
- - - - - - - - - 69
24-4 80-JB566-1 Rev. C 70
Overview 71
Abnormal Performance 71
Event Not Triggered 72
80-JB566-1 Rev. C 25-3 73
Events Triggered in Error 74
80-JB566-1 Rev. C 26-1 75
26-2 80-JB566-1 Rev. C 76
Appendix Contents 77
Wiring Diagrams and Charts 79
6-Pin Power/IO Cable 80
9-Pin Power/IO Cable 80
08AAA_051 83
A-6 80-JB566-1 Rev. C 84
B-2 80-JB566-1 Rev. C 86
1/4" 88
03AAA_270a 88
Butt Splicing 89
03AAA_90b 90
Crimp tooth 90
Do NOT crimp wire here 90
Crimp here 90
Crimping Tool 91
Ring Terminals 92
Proper Grounding 93
Routing and Protecting Cables 94
Standard RMA Procedure 95
D-2 80-JB566-1 Rev. C 96
Before You Start 97
E-6 80-JB566-1 Rev. C 102
Inspecting the Antenna 104
Component Information 105
45-JB593-1 107
80-JB566-1 Rev. C G-3 107
Paccar adapter 107
G-4 80-JB566-1 Rev. C 108
Installation Form 109
H-2 80-JB566-1 Rev. C 110

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Qualcomm OBDII J1708 Anleitung zur Fehlerbehebung Seite 50

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