SEAL-O-RING 9X4619 - Caterpillar

System Operation Description:Use this procedure under the following situation:Use this procedure to determine if the clutch pedal position switch is preventing normal operation of cruise control, fast idle, idle set speed, or PTO operation:The following switch circuits can also prevent the correct operation of the cruise control, idle set speed or PTO operation:
service brake pedal position (switch 1)
service brake pedal position (switch 2)
neutral switch
cruise control set/resume switch
cruise control on/off switch
PTO on/off switch
cruise control pause switchThe switches are described in the respective circuit tests in Troubleshooting.All of the following Customer Programmable Parameters can affect cruise control, fast idle, idle set speed, and PTO operation:
"Low Cruise Control Speed Set Limit"
"High Cruise Control Speed Set Limit"
"Idle Vehicle Speed Limit"
"Fast Idle RPM #1"
"Fast Idle RPM #2"
"Cruise/Idle/PTO Switch Configuration"
"Idle/PTO Bump rpm"
"Idle/PTO rpm Ramp Rate"
"PTO Vehicle Speed Limit"
"Cruise Pause Switch"The vehicle speed calibration can also affect the cruise control, the idle set speed, and the PTO if the vehicle speed calibration is incorrectly programmed. Refer to Troubleshooting, "Customer Specified Parameters".Clutch SwitchThe clutch pedal position switch is normally closed when the pedal is released. Depressing the clutch pedal should open the circuit. This switch is OEM supplied. The clutch pedal position switch is typically a limit switch that is mounted near the pedal. The clutch pedal position switch is usually adjustable.This switch may not be connected to an input on the ECM. The parameter "Clutch Pedal Position Switch" determines the input to the ECM. If the parameter is programmed to J1/P1:22 a switch must be connected to terminal 22. If the parameter is programmed to one of the J1939 options, the switch position will be transmitted to the ECM over the J1939 data link. If a problem is suspected with the J1939 data link, refer to Troubleshooting, "Powertrain Data Link Circuit - Test".The following background information is related to this procedure:The kickout switch refers to the switch that is used to exit the cruise control, the fast idle, the PTO, or the idle set speed.The operation of the Caterpillar electronic engine cruise control is similar to the operation of the cruise controls that are installed in automobiles. The operation of fast idle, idle and PTO are similar to the operation of cruise except that the idle and the PTO govern engine rpm instead of vehicle speed.Note: Idle in this procedure is an engine idle rpm above the programmed low idle rpm. Idle is set by using the cruise control on/off switch and the set/resume switch. Refer to Troubleshooting, "PTO Switch Circuit - Test" for additional information regarding the programmable options for the Dedicated PTO.Note: Fast idle in this procedure is an engine idle rpm above the programmed low idle rpm. Fast idle is set by using a dedicated fast idle switch.Cruise Control On/Off SwitchThis switch must be on before cruise control or controlled idle can be activated. This switch is on when the switch is closed. When the switch is closed the following terminals are connected:
ECM connector J1/P1 terminal 59 (cruise control on/off switch)
Terminal 5