2. MEASURE RESISTANCE OF ECU CAUTION: 1. Do not touch the ECU terminals. 2. The tester probe should be inserted into wiring connector from wiring side. Check the resistance between each terminal of the wiring connector. • Remove the glove box. • Unplug the wiring connectors from the ECU. • Measure the resistance between each terminal of the wiring connectors. Resistances at ECU Wiring Connectors Terminals | Condition | Resistance (Ω) IDL — E₂ | Throttle valve open | ∞ IDL — E₂ | Throttle valve fully closed | 0 VTA — E₂ | Throttle valve fully opened | 3,300 — 10,000 VTA — E₂ | Throttle valve fully closed | 200 — 800 Vc — E₂ | Disconnect air flow meter connector | 3,000 — 7,000 Vc — E₂ | Disconnect throttle position sensor connector | 200 — 400 Vs — E₂ | Measuring plate fully closed | 20 — 400 Vs — E₂ | Measuring plate fully open | 20 — 1000 THA — E₂ | Intake air temperature 20°C (68°F) | 2,000 — 3,000 G — G⊖ | — | 140 — 180 Ne — G⊖ | — | — ISC₁, ISC₂ — +B | — | 10 — 30 ISC₃, ISC₄