29/10/2026
Another busy call-out on a local garage forecourt today in Willenhall — and a classic reminder of why proper diagnostics always come before throwing parts or keys at a car! 🚐🔧
Initially got called down to strip and rebuild a door lock barrel on a VW Caddy, which went smoothly.
While I was on site, the trader asked me to take a look at two dead "no-start" pitch cars that had been written off as having immobiliser/key faults: a 2012 Vauxhall Astra and a 2014 Renault Clio.
Instead of blindly coding new keys and hoping for the best, the diagnostic tablet went on first:
🔹 2014 Renault Clio (Dead / No Start):
Checked the immobiliser live data first—key was 100% recognized and authorised to start. However, a full topology scan showed dead comms across multiple modules, including the Engine ECU and Power Steering. Did some digging into the power distribution and found the fuses feeding those exact circuits had been pulled! Popped the right fuses back into the board, comms came straight back online, and she fired right up.
🔹 2012 Vauxhall Astra (Cranking / No Start):
Again, suspect "key fault." Live data quickly proved otherwise: transponder authorised, starter requests active, and fuel parameters all sitting right where they should be. Moved straight under the bonnet—tested the coil pack and found zero spark. Traced the feed back to the fuse box, found a blown ignition/coil circuit fuse, swapped it out, and had the second car of the day purring.
What started as a simple VW lock rebuild turned into getting two dead forecourt cars back up and running without a single unnecessary key being programmed.
Whether you're a motor trader with a head-scratcher on the pitch or a private owner stuck with a non-runner, we don't guess—we test.
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