What does code P1793 mean on Jaguar vehicles?
The ECU detects a malfunction in the ignition power supply circuit feeding the transmission control module.
OBD-II Code Jaguar
P1793 — Jaguar — TCM Ignition Power Supply Circuit Malfunction
The ECU detects a malfunction in the ignition power supply circuit feeding the transmission control module.
Common symptoms
- Failure to engage gears
Possible causes
- Faulty power supply
- wiring issues
Initial recommendation
Inspect TCM power supply circuit and repair electrical faults.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Jaguar code P1793 with your vehicle's actual symptoms for more complete diagnostic guidance.
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