16
TROUBLESHOOTING
Common V3R™ issues
The majority of all V3R issues fall into six broad categories:
• GPS Signal Strength Issues.
The V3R must be given a clear
view to the open sky to operate correctly. If this cannot be
accomplished an external GPS antenna with a clear view to the
sky must be utilized.
• Cellular Signal Strength Issues.
The V3R cannot transmit
in areas that are not covered by cellular towers (typically remote
areas). The V3R will store information until cellular reception is
restored and then forward all stored data.
• Cold Starts:
These are the most serious issue because they
represent a lack of integrity in the constant power supply to the
device. Before any other issue can be resolved, it is important
to ensure that the V3R has reliable constant power.
• Issues with the Engine Run Signal:
These lead to false
reporting of engine hours. The problem can be false positive
(e.g. V3R records engine hours even if the asset is not running)
as well as false negative (e.g. V3R does not record engine hours
even though the asset is running)
• V3R™ Issues:
Inside every V3R is a Zonar V3R™ GPS unit.
Therefore, typical V3R issues can arise with any V3R. Since
much of the V3R troubleshooting information references LEDs
which are hidden inside the waterproof V3R enclosure, in most
cases you will need to contact Zonar Customer Support for
help.
White Wire (WW) / Switched Power Electrical Test
1. Engage the equipment master switch.
2. Connect Zonar harness to V3R case
3. Connect the negative meter probe to the Zonar GND wire.
4. Turn engine off.
5. Refer to Figure 1-16 and locate the
WW
pin on the 35-pin
connector. Probe this pin with the positive meter probe.
6. To pass the inspection, the meter must show less than 1V.
7. Turn engine on.
8. Probe the WW pin. To pass, the meter should read greater than
5V.
Inspection Results
If both steps 6 and 8 result in PASS, the V3R passes the electrical
inspection. However, if the equipment is acting up only under certain
conditions (i.e. hot day, rainy weather) the test should be performed
again under those conditions.
If either test results in FAIL, perform the WW continuity tests. Once
the wiring has been verified, repeat this test. If the result is FAIL
again, swap in a new V3R and repeat.
If the inspection does not pass even after swapping in a new V3R,
note the failure condition, and contact Zonar support.
Figure 1-16 V3R Cable Pin Assignments
