Automotive Electronics, EV & Hybrid Diagnostics
Automotive Electronics, EV & Hybrid Diagnostics
Transmission controller, TCU and DSG diagnostic and repair enquiry guides.
P0731 is a ratio finding, not a complete repair diagnosis. Learn what to preserve before a gearbox or transmission-controller assessment.
P0731 Gear 1 Incorrect Ratio: Separating Transmission and TCU Questions Read More »
A P0722 transmission fault needs speed-signal context and exact gearbox identification. Prepare the evidence before a TCU repair enquiry.
P0722 Output-Speed Signal Missing: What the Gearbox Report Should Include Read More »
DSG loses drive or stores P2711? Understand why gearbox identity, speed signals and the full report matter before a mechatronic repair.
P2711 DSG Gear Disengagement: What a TCU Repair Enquiry Needs Read More »
A clutch-temperature warning alongside an input-speed fault needs context. Identify the gearbox and preserve both entries before repair.
P1740 and P0716 on DSG: Temperature and Speed Faults Together Read More »
VAG P1746 can involve low voltage or an internal controller problem. See what to record before arranging a transmission electronics assessment.
P1746 Transmission Solenoid Power Relay: Check the Supply Before Condemning the TCU Read More »
Prepare a clear electronics referral for AXION: symptoms, scans, module identity, tests completed and the decision your garage needs next.
Referring a Complex ECU, TCU or EV Fault: A Practical Guide for UK Garages Read More »
Wrong PRND display, no-start or selector faults? Understand transmission-range codes before replacing a selector or transmission controller.
P0705-P0709: Gear Selector Recognition and TCU Diagnosis Read More »
P0741 needs transmission evidence before a TCU repair decision. Understand lock-up operation, supporting records and assessment limits.
A documented Scirocco DSG example shows why software history and temperature evaluation belong in a gearbox diagnostic assessment.
VW Scirocco DSG Judder and Flashing Gear Display: A Software Diagnostic Example Read More »
Understand the VAG P1624 warning request and why the transmission controller’s own codes matter before a TCU, DSG or ECU repair enquiry.
P1624 / 18032 / 005668: Why the Gearbox Fault Report Matters Read More »