OBD-II Code Jaguar

P1629 — Jaguar — Alternator Field Circuit Malfunction

The ECU detects a malfunction in the alternator field control circuit.

Brand Jaguar
System Electrical System
Severity High
Safe to drive? Not recommended
Advanced scanner Yes

What does code P1629 mean on Jaguar vehicles?

The ECU detects a malfunction in the alternator field control circuit.

Common symptoms

  • Unstable charging voltage

Possible causes

  • Faulty alternator field circuit
  • regulator issue

Initial recommendation

Inspect alternator field circuit and replace alternator if necessary.

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 P1629 with your vehicle's actual symptoms for more complete diagnostic guidance.

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