2005 Lexus ES 330FACTORY OEM SERVICE PROCEDURE

Service Data

Emission Control Service Data

Air fuel ratio compensation system    
Voltage A1A+ (E9 - 22) - E1 (E8 - 1) 3.3 V
  A1A- (E9 - 30) - E1 (E8 - 1) 3.0 V
  A2A+ (E8 - 23) - E1 (E8 - 1) 3.3 V
  A2A- (E8 - 31) - E1 (E8 - 1) 3.0 V
Fuel cut off rpm Fuel cut off rpm 2,500 rpm
  Fuel return rpm 1,200 rpm
Vapor pressure sensor assy    
Voltage VC (E10 - 18) - E2 (E10 - 28) 4.5 to 5.5 V
  PTNK (E6 - 21) - E2 (E10 - 28) 3.0 to 3.6 V
Charcoal canister assy (VSV for CCV)    
Resistance 1 - 2 25 to 30 Ω at 20°C (68°F)
    32 to 40 Ω at 100°C (212°F)
Vacuum switching valve assy No. 1 (VSV for EVAP)    
Resistance 1 - 2 26 to 30 Ω at 20°C (68°F)
Air fuel ratio sensor    
Resistance 1 (HT) - 2 (+B) 1.8 to 3.4 Ω at 20°C (68°F)
Heated oxygen sensor    
Resistance 1 (HT) - 2 (+B) 11 to 16 Ω at 20°C (68°F)
Air fuel ratio sensor heater relay    
Resistance 3 - 5 10 kΩ or higher
  3 - 5 (Apply battery voltage to terminals 1 and 2) Below 1 Ω
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.