Toyota Hybrid (HV) Battery System Faults
The Toyota hybrid (HV) battery system is one of the brand's defining technical differences. This page is for information only and contains no high-voltage removal or intervention instructions.
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What Is Toyota Coding? Techstream and Cautions
Toyota coding is updating the configuration/parameters in control units. It is not the same as ECU flashing; the Techstream path is common.
What Is Toyota Techstream? Diagnostics and Programming
Toyota Techstream is the official workshop diagnostic software. It plays a central role in diagnosis, service functions, coding, and many programming processes.
What Is Toyota Injector Coding? (Diesel)
Toyota injector coding is the process of writing new injectors' calibration values into the engine ECU, especially on diesel common-rail models.
What Is the Toyota MDI2 Interface?
Toyota MDI2 is referred to as the newer-generation interface in the OEM diagnostic chain. It is considered a more current option than Mini VCI on Techstream and DoIP-equipped vehicles.
Toyota TCM / Transmission (Automatic/CVT) Fault
A Toyota TCM / transmission fault covers gear-shift complaints caused by, or linked to, the automatic or CVT control unit. Diagnosis comes first.
What Is Ford Injector Coding?
Ford injector coding is writing the calibration values of new or replaced injectors into the engine control unit (PCM).
What Is the Ford VCM3 Interface?
Ford VCM3 is regarded as the new-generation interface in the OEM diagnostic chain. In FDRS and current IDS workflows it is considered a more up-to-date option than VCM II.
What Is Ford J2534 Pass-Thru ECU Programming?
J2534 Pass-Thru is the standard interface protocol used with OEM software for ECU programming/diagnostics on Ford and many other American brands. This page is for informational purposes.
Ford Focus Mk3/Mk4 Coding and Diagnostics
Diagnostic/coding paths differ between Ford Focus Mk3 and Mk4 generations. FDRS/VCM3 tends to come up more often on Mk4; don't carry Mk3 habits over directly.