LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2004 >> Prius >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System (Service Specifications) >> Service Data
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Service Data

Cooling Service Data Specifications

Thermostat    
Valve opening temperature   80 to 84°C (176 to 183°F)
Valve lift at 95°C (205°F) 8.5 mm (0.335 in.) or more
Radiator cap sub-assy    
Standard opening pressure   74 to 103 kPa (0.75 to 1.05 kgf/cm2 , 10.7 to 14.9 psi)
Minimum opening pressure   59 kPa (0.6 kgf/cm2 , 8.5 psi)
Cooling fan    
Standard amperage 9.2 to 11.0 A  
Cooling fan relay    
Specified condition Between terminals 3 and 5 10 kΩ or higher
  Between terminals 3 and 5 Below 1 Ω (Apply battery voltage to terminals 1 and 2)
Cooling fan relay No.2    
Specified condition Between terminals 3 and 4 Below 1 Ω
  Between terminals 3 and 5 10 kΩ or higher
  Between terminals 3 and 5 Below 1 Ω (Apply battery voltage to terminals 1 and 2)
Integration relay    
Specified condition Between terminals B1 and B4 10 kΩ or higher
  Between terminals B1 and B4 Below 1 Ω (Apply battery voltage to terminals 1 and 2)