Index storingcodes · medium
P0126
Insufficient coolant temperature for stable operation
Insufficient coolant temperature for stable operation
Applies to: Generic SAE definition - verify applicability to the specific X-TYPE variant · Confidence: Generic SAE definition (not Jaguar-specific)
Common causes
- Thermostat stuck open
Quick checks
- Scan access: Generic OBD-II scan tool
Typical fixes
- Replace the thermostat