4-86 FI SYSTEM DIAGNOSIS Step 3 3 1) Turn the ignition switch OFF. 2) Check the continuity between Yellow wire and ground. Position sensor continuity: ∞ Ω (Infinity) 3) If OK, then measure the position sensor resistance. 4) Connect the position sensor coupler. 3 5) Set the EXCVA to adjustment position. (6-4) 6) Disconnect the position sensor coupler and measure the 3 E resistance. (between Yellow and White wires) L Position sensor resistance at adjustment position: Approx. 3.1 kΩ (+ Yellow – - White) P 09900-25008: Multi circuit tester set M Tester knob indication: Resistance (Ω) Is the resistance OK? SA YES Go to Step 4. NO Replace the EXCVA with a new one.