8 - 59– +ELECFUEL INJECTION SYSTEMEAS00502CHECKING AND ADJUSTING THETHROTTLE POSITION SENSORNOTE:Before adjusting the throttle position sensor,the engine idling speed should be properlyadjusted.1. Check:• throttle position sensor(installed on the throttle body) a. Disconnect the throttle position sensor cou-pler from the throttle position sensor.b. Connect the pocket tester (Ω × 1k) to thethrottle position sensor.c. Measure the maximum throttle position sen-sor resistance.Out of specification → Replace the throttleposition sensor.d. Connect the pocket tester (Ω × 1k) to thethrottle position sensor.e. While slowly opening the throttle, check thatthe throttle position sensor resistance iswithin the specified range.NOTE:Check mainly that the resistance changesgradually when turning the throttle, since thereadings (from closed to wide-open throttle)may differ slightly from those specified.Out of specification or the resistancechanges abruptly → Go to step 2 below.Tester positive probe → blue terminal 1Tester negative tester probe →black/blue terminal 2Maximum throttle position sensorresistance4.0 ~ 6.0 kΩ at 20 °C (68 °F)(blue — black/blue)Tester positive probe → yellow terminal 3Tester negative probe →black/blue terminal 2B/LYL
