Stop Light Switch INSPECTION OF SWITCH INSPECT SWITCH CONTINUITY Inspect the switch continuity between terminals. Terminal Switch position 1 2 3 4 Switch free O---- ----O Switch pin pushed O---- ----O If continuity is not as specified, replace the switch. Actuator INSPECTION OF SENSOR 1. INSPECT ACTUATOR RESISTANCE Measure the resistance value between terminals as follows. Resistance: 3 — 2 approx. 30 Ω 1 — 3 approx. 65 Ω If the resistance value is not as specified, replace the actuator. 2. INSPECT ACTUATOR OPERATION (a) Connect the positive (+) lead from battery to terminals 2 and 1, and the negative (—) lead to terminal 3. (b) Slowly apply vacuum from 0 — 300 mmHg (0 — 11.81 in.Hg, 0 — 40.0 kPa), and check that the control cable can be pulled smoothly. (c) Disconnect terminal 2 or 1 and check that the control cable returns to its original position and the vacuum returns to 0 mmHg (0 in.Hg, 0 kPa). If operation is not as specified, replace the actuator. 3. INSPECT CONTROL CABLE FREEPLAY (a) Connect the positive (+) lead from battery to terminals 2 and 3, and 1 the negative (—) lead to terminal 1. (b) Slowly apply vacuum from 0 — 300 mmHg (0 — 11.81 in.Hg, 0 — 40.0 kPa), and measure the cable stroke to where the throttle valve begins to open. Standard: Approx. within 10 mm (0.39 in.) with a slight amount of freeplay. If freeplay is not as specified, adjust the control cable freeplay.