Home/Honda/Civic/Honda Civic GA (1998-2002)/Repair manual/Testing & Diagnostics/DTC P1121 & P1122: THROTTLE POSITION (TP) SENSOR
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DTC P1121 & P1122: THROTTLE POSITION (TP) SENSOR Honda Civic GA

  1. If DTC P1121 is indicated, turn ignition on. Using scan tool, check throttle position with throttle valve fully open. See «THROTTLE POSITION PERCENTAGE»(ref-2658-S29372625612000041100000) table. If TP percentage is as specified or more, problem is intermittent. System is functioning properly at this time. If TP percentage is less than specified, replace TP sensor.
  2. If DTC P1122 is indicated, turn ignition on. Using scan tool, check throttle position with throttle valve fully closed. See «THROTTLE POSITION PERCENTAGE»(ref-2658-S29372625612000041100000) table. If TP percentage is as specified or less, problem is intermittent. System is functioning properly at this time. If TP percentage is more than specified, replace TP sensor.
Application(1) Percent Open(2) Percent Closed
D16Y511.816.5
D16Y712.916.9
D16Y812.216.5
B16A213.716.5
(1) DTC P1121. (2) DTC P1122.
(1)DTC P1121.
(2)DTC P1122.

THROTTLE POSITION PERCENTAGE