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

Service Data

Engine Control System Service Data

Camshaft timing oil control valve assy    
Resistance 1 (+) - 2 (-) 6.9 to 7.9Ω at 20°C (68°F)
Mass airflow meter    
Resistance 4 (THA) - 5 (E2) 13.6 to 18.4kΩ at-20°C (-4°F)
    2.21 to 2.68 kΩ at 20°C (68°F)
    0.493 to 0.667 kΩ at 60°C (140°F)
Engine coolant temperature sensor    
Resistance 1 (E2) - 2 (THW) 2.32 to 2.59 kΩ at 20°C (68°F)
    0.310 to 0.326 kΩ at 80°C (176°F)
Throttle w/ motor body assy    
Throttle valve opening percentage   60 % or more
Idle speed   950 to 1,050 rpm
Resistance (Throttle control motor) 1 (M+) - 2 (M+) 0.3 to 100Ω at 20°C (68°F)
Resistance (Throttle position sensor) 1 (VC) - 4 (E2) 1.25 to 2.35Ω at 20°C (68°F)
Knock sensor    
Resistance 1 (Ground) - 2 (Output) 120 to 280kΩ at 20°C (68°F)
EFI Relay    
Resistance B5 - B8 10 kΩ or higher
    Below 1 Ω (Apply battery voltage to terminal B6 and B7)
Circuit opening relay    
Resistance B5 - B8 10 kΩ or higher
    Below 1 Ω (Apply battery voltage to terminal B6 and B7)