Posted here
https://forums.hardwarezone.com.sg/...u-installed-it-take-up-battery-power.7134898/
Summarize here for awareness.
Just want to share what happened after I installed my OBU at Vicom.
- 30 June: Installed the OBU.
- 7 July: My 1.5-year-old battery died suddenly. Car couldn’t start, had to call roadside assistance for a jump. Workshop said I needed a new battery and diagnostic reset for all the “Christmas lights” on my dashboard.
- 11 July: Went back to Vicom worried something wasn’t right. IU inspection technician discovered the previous installer had simply tapped the OBU wiring onto my dashcam power line (instead of the fuse box). Technician removed the wrong wiring and reconnected the OBU properly. An incident report was filed to LTA.
From there, I wrote to LTA to seek compensation. Took 51 days, spoke to 5 different CSOs, and only after multiple escalations did the case start moving after involving their higher echelon.
Progress Updates:
- 27 Aug: After pushing harder, finally got a reply + follow-up call.
- 28 Aug: LTA officer called, spent 50 mins verifying details, promised to expedite.
- 29 Aug: Officer asked me to bring the vehicle back to Vicom for further checks.
- 1 Sept: Big surprise — 10 people from LTA, Mitsubishi, and Vicom inspected my car together. They confirmed my concerns, and Mitsubishi even corrected the earlier poor wiring job. All acknowledged my case was valid. Still waiting for official report.
- 3 Sept: LTA replied by email (no formal letter/report). Their stance:
- In theory, OBU sharing power with other devices shouldn’t drain the battery, but this is not part of the approved training/manual.
- Direct fuse box connection remains the only approved and tested method.
- Acknowledged the Vicom installer didn’t follow procedure.
- Recommended Vicom compensate me (which they eventually did).
My take:
- Root cause: installer error + poor supervision (Vicom) + procedural oversight (LTA).
- LTA’s theory about shared power not causing drain isn’t backed by real-life testing, so long-term effects on battery lifespan are still unknown.
- What worries me more is how many other cars may have been wired wrongly — this can cause flat batteries, or worse, electrical shorts/fire risks.
Final outcome: Vicom reimbursed me. But honestly, the whole experience showed:
- Inadequate pre-installation checks
- Lack of installer competency
- Slow handling and poor communication
- Weak accountability until I escalated to higher management
ERP 2.0 is a national project. For it to succeed, all parties (installers, Vicom, LTA) need to take their roles seriously and make sure every OBU is installed safely and correctly.
If you’ve already installed your OBU, maybe check during your next inspection to make sure it’s wired directly to the fuse box. Better safe than sorry.