Federal
DIAGNOSTIC DETECTION LOGIC
CIRCUIT DIAGRAM
INSPECTION USING SCAN TOOL
HARNESS INSPECTION PROCEDURE
TROUBLESHOOTING HINTS
Hint: If the closed throttle position switch harness and individual part check results are normal but the closed throttle position switch output is abnormal, the following troubles are suspected.
(1) Poorly adjusted accelerator cable or auto-cruise control cable
(2) Poorly adjusted fixed SAS
SENSOR INSPECTION
(1) With the accelerator pedal released, check to be sure that the throttle valve lever or the fixed SAS is pushed.
NOTE: If it is not pushed, adjust the fixed SAS.
(2) Disconnect the throttle position sensor connector.
(3) Check the continuity across the throttle position sensor connector terminal (Sensor ground) and (3) (Closed throttle position switch).
NOTE: If there is no continuity when the accelerator pedal is returned, loosen the throttle-position sensor installation screw; then, after turning all the way in the counterclockwise direction, check again.
(4) Replace the throttle-position sensor (closed throttle position switch incorporated) if there is a malfunction.