Volvo DEF Tank Temperature Over Heating DTC P24FF00

DEF Tank Temperature Too High P24FF00 Temperature above 70°C (158°F). No aftertreatment Diesel Exhaust Fluid (DEF) dosage. 1. Extreme driving conditions (high ambient temperature) 2. DEF tank too close to hot objects 3. DEF tank heating valve stuck open 4. DEF tank heating valve installed backwards 5. Temperature sensor, aftertreatment Diesel Exhaust Fluid (DEF) tank