Tesla Model 3 and Y: what OBD gives you and what it does not
There is no standard OBD-II socket on a Model 3 or Y, and no emissions data to report even if there were. Here is what is actually accessible and what genuinely matters.
0 0 0
Blog
Toyota Land Cruiser and Prado: OBD diagnostics on a long-life SUV
These are bought to last two decades, which changes what matters. The engine rarely lets you down; the drivetrain oils and the emissions hardware are where attention pays.
0 0 0
TPMS light will not reset after inflating the tyres
You checked every pressure and the light is still on. Whether your car uses sensors in the wheels or infers pressure from wheel speed changes what the fix is entirely.
0 0 0
Transmission overheating warning: causes and immediate actions
Heat is what kills automatic gearboxes, and the relationship is brutal: every 10 °C above normal roughly halves fluid life. What you do in the next five minutes matters.
0 0 0
U0101: lost communication with the transmission control module
U0101 means the engine ECU stopped hearing the gearbox module on the CAN bus. The module is often alive and well — it is the wiring, power or bus termination that failed.
0 0 0
U0121: lost communication with the ABS module
When the ABS module goes quiet, wheel speed disappears from the whole car. Three warning lights come on at once and half the driver assistance systems switch themselves off.
0 0 0
U0140 and U0155: lost communication with the body module and cluster
These two codes sit on the comfort side of the network, where symptoms look like unrelated electrical gremlins: dead windows, wrong gauges, lights that will not switch off.
0 0 0
Volvo XC60 and XC90: OBD diagnostics and module coverage
Volvo builds safety systems into almost everything, which means many modules and many things that can go quiet. The generic scan reaches less here than owners expect.
0 0 0
VW Tiguan and Touareg: common OBD faults on VAG SUVs
Two VW SUVs at opposite ends of the range. The Tiguan inherits the mainstream VAG fault list; the Touareg adds air suspension and a complexity level that changes the calculus.
0 0 0
Whining noise when accelerating: belt, pump or gearbox?
Whether the pitch follows engine speed or road speed is the entire diagnosis. One test in a car park separates a cheap belt from an expensive differential.
0 0 0
Why the check engine light comes back after clearing
Clearing a code does not repair anything. Understanding the drive-cycle logic behind when the light returns tells you whether a repair worked or merely delayed the verdict.
0 0 0
The car will not move in Drive: gearbox, fluid, or limp mode
Selector in D, engine running, car stationary. The causes from fluid level to limp mode, and what to check first.
0 0 0