INSPECTION OF WIRING CONNECTOR LINE MEASURE RESISTANCE OF ECU CAUTION: 1. Do not touch the ECU terminals. 2. The tester probe should be inserted into the wiring connector from the wiring side. Using an ohmmeter, check the resistance between each terminal of the wiring connector. • Remove the glove box. • Disconnect 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 — 100 Ω 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 opened | 20 — 1,000 THA — E₂ | Intake air temperature 20°C (68°F) | 2,000 — 3,000 G — G⊖ | — | 140 — 180 Ne — G⊖ | — | 140 — 180 ISC₁, ISC₂ ISC₃, ISC₄ | +B | — | 10 — 30