What does code P1657 mean on Jaguar vehicles?
The ECU detects a malfunction in the throttle motor relay coil circuit when commanded ON.
OBD-II Code Jaguar
P1657 — Jaguar — Throttle Motor Relay Coil Circuit ON Malfunction
The ECU detects a malfunction in the throttle motor relay coil circuit when commanded ON.
Common symptoms
- Fail-safe mode engaged
Possible causes
- Faulty throttle motor relay
Initial recommendation
Replace the throttle motor relay and verify proper operation.
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 P1657 with your vehicle's actual symptoms for more complete diagnostic guidance.
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