FAQ Archive
GPSController FAQs - Page 52
Browse older support questions without loading full answer pages into the archive.
FAQ
What is the most common hidden cause of lost ELD data?
The most common hidden cause is a failing connection at the vehicle's diagnostic port, which causes intermittent power or data loss that doesn't trigger clear alerts until you're in an audit situation.
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When is it time to replace the GPS immobilizer hardware?
Replace the hardware when lockouts become random and unrepeatable, but only after verifying all server rules, updating firmware, and confirming vehicle wiring is good. This pattern indicates failing internal components i...
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Why would my GPS tracker prevent the engine from starting?
The GPS tracker's immobilizer is designed as a theft deterrent, but a malfunction can cause it to erroneously engage. This can happen due to low device power, a lost GPS signal interpreted as theft, corrupted remote comm...
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How do I know if it's the tracker or the car's anti-theft system causing the lockout?
Temporarily disconnect the telematics device's immobilizer relay (consult the wiring diagram). If the car starts then, the fault is in the tracker or its commands. If it still doesn't start, the issue is likely the vehic...
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Can a low vehicle battery cause an immobilizer lockout?
Yes, but indirectly. A voltage drop can make the telematics device reboot erratically, and during that unstable state, it might send a default 'lock' signal to the vehicle's ECU. This prevents start-up until full power i...
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When should we stop trying to fix our current geofence system and look for a new solution?
When you've tuned the geofence sizes, sensitivity, and notification rules, and you're still getting missed alerts in known weak-signal zones, it's time to consider replacement. This indicates that the core alert reliabil...
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Why did my geofence not alert me when a vehicle was stolen?
Most likely, it's a combination of a low reporting interval and signal drift right at the geofence edge. The device might not have reported a location firmly outside the boundary until well after the theft happened, whic...
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Can a geofence fail only sometimes, making it hard to diagnose?
Yes, intermittent failures are common and usually tied to specific locations like urban areas with poor GPS visibility, or times when network latency is high. This inconsistency is actually a major red flag for deeper de...
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How many vehicles need to experience geofence failures before it's considered a system problem?
A single failure during a theft incident is already a system problem. For non-critical alerts, if you're seeing unexplained geofence misses in more than 5% of your fleet during audits, the configuration or the platform i...
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Does adding more vehicles to a fleet make GPS data lag worse?
Adding more vehicles can expose existing lag issues. The system backend might throttle data from individual devices under high load to manage server capacity, creating an artificial, scale-induced delay that wouldn't be...
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Can poor cellular signal cause permanent data lag in GPS controllers?
Yes, poor cellular signal can cause data lag, but the real issue is how the controller handles it. Some controllers store and then dump old data when the signal returns, creating bursts of outdated location points that c...
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When should fleet operators replace GPS controllers instead of troubleshooting lag issues?
Replace controllers when lag persists after verifying network coverage, updating firmware, and optimizing reporting intervals. If dispatch decisions are consistently wrong and audit trails don't match logbooks, the opera...
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