JS Automotive Solutions

23/09/2026

Toyota Hiace 1KD - no ECU communication, no engine light. Not starting.
Caused by a short circuit on the 5V rail - often caused by a shorted fuel pressure sensor . Today, it was caused by mixed up terminal blocks. Unfortunately we tested everything else before landing on this!

This particular fault with Toyotas is a design flaw in the ECU architecture , common with most generation 1 denso. Typically, ecus are expected to retain communication and provide a 5V short circuit fault code on diagnostics.

03/09/2026

Nissan Serena C27 instrument panel language conversion

31/08/2026

Various Jeep/Chrysler modules - not paying a cent to tech authority today!

Roughly 2015 year for all parts, BCM , ABS, and DTCM. Mostly vin locked and a pain to unlock.

28/08/2026

28/08/2026

Adas problems on a 2020 Lexus - apparently mice can fit inside the headliner

28/08/2026

Various bits of programming this week - some done completely from a scan tool , what a privilege!

26/08/2026

Canbus issues on a W205 Mercedes causing the instrument panel to go nuts. Reverse camera at fault!

19/08/2026

Chasing an intermittent power steering issue on a Hyundai Accent. Sometimes when turning a tight corner, communication to the power steering and ABS modules would dropout, resulting in tough steering and multiple warning lights.
Canbus and power/earths tested fine at idle, and module voltage showed fine in the scan tool during driving - until communication was lost of course.
It wasn't until we pulled the strip fuse out of the fuse box (which is mostly hidden) that we saw this monstrosity - wire wrapped around the terminals acting as a fuse. Both a fire hazard and crash waiting to happen.
We quickly remedied this by replacing it with a correctly rated fuse filament (VW strip fuse type)

15/08/2026

Three d-max/rodeo ecus in one week, two bosch edc15m1-8.6 and one delphi.
The first bosch burnt a hole in the board - we deemed it cheaper to replace than repair and sourced and programmed a second hand module.
The second bosch was suspected faulty by the owner and they'd already purchased a donor - we completed the clone for this also.
The delphi ECU was perfectly fine but the owner purchased a tuned engine with ECU, and wanted to run the new ECU tune - we copied the immobilizer only for the new ECU

Final picture is a jeep ECU in for bench test and boot unlock+edits

13/08/2026

8hp50 - BMW F30 transmission programming
Eeprom changed - online coding performed over launch scan tool