346-66903-0 Nissan SPRING, REVERSE LOCK

Voltage Thresholds (Measurement at the ECM)
Voltage Input of Less Than 0.9 Volts - When the switch contacts close, the voltage that is across the following items must be less than 0.9 Volts between the respective control input and the sensor common connection: difference of the ground potential, drop in switch voltage and drop in voltage for the wiring harness.Voltage Input Equal To or Greater Than 4.0 Volts - When the switch contacts open, the following items must not result in an effective resistance of less than 5,000 Ohms from the respective control input to the sensor common connection: the pin to pin leakage paths in connectors, harnesses and switches.Note: The following terminals are designated as the Sensor Common connection J1/P1: Terminal 3 ("Input Sensor Common 2") and terminal 18 ("Input Sensor Common 1"). OEM installed switches that are input into the ECM must not be connected to the vehicle or to the cab ground. The OEM installed switches must be grounded to the Sensor Common by using a dedicated return line to ECM Vehicle Harness Connector P1.Selecting a Switch Type
The type of switch that is required depends on the type of application that is required. The Cruise Control Set/Resume or the RPM Increase/RPM Decrease Switch is typically a three-position momentary switch. A spring is used in order to return the switch to the OFF position.The PTO On/Off Switch can be an On/Off or a two-position switch. The switch can be actuated by one of the following operations:
Manual
Air
HydraulicThe Interlock Switches for the PTO are typically actuated by air. The Interlock Switches for the PTO are also in the normally closed position. The switches are connected into the air lines for the Parking Brake or connected to the air lines for the Transmission. All switches may be controlled hydraulically or the switches may be limit switches. All switches that are located outside the cab should be environmentally sealed and protected.Switches That Are Available from Caterpillar
A 112-4073 Pressure Switch Assembly is available. The switch has the following features: single pole, single throw and actuated by air.
Illustration 1 g00621900
Schematic for the 112-4073 Pressure Switch Assembly The actuation pressure for the switch is the following value: 330 kPa (48 psi)Electrical Specifications for the Remote Accelerator Pedal Position Sensor
Illustration 2 g00622029
161-8906 Accelerator Pedal Position Sensor The 161-8906 Position Sensor is required. The sensor is supplied with a Deutsch HD connector. The Deutsch part number is HD16-3-96S. The Caterpillar part number is 8T-8731 Connector Plug. The connecting harness will require a Deutsch HD receptacle connection. The Deutsch part number is HD14-3-96P. The Caterpillar part number is 8T-8732 .Note: The 161-8906 Position Sensor can not be powered by the 8 Volt power supply from the ECM. The 161-8906 Position Sensor must be connected and powered by 12/24 Volt battery voltage.Mounting the Accelerator Pedal Position Sensor
Illustration 3 g00638606
107-2281 Mounting Block The handle is not included.The 161-8906 Position Sensor can be attached to either an accelerator pedal assembly or a 107-2281 Mounting Block. The PTO Accelerator Assembly does not include the handle. A mechanical linkage can also be used in the application. Contact the vehicle OEM in order to obtain information on the part number for the accelerator pedal assembly.
Illustration 4 g00638604
Williams Controls, Inc. Pedal assembly
Table 1
Williams Controls, Inc. Part Numbers for Pedal Assemblies    
Supplier Part Number     Pedal Angle    
350415     28 degrees    
350416     35 degrees    
350417     45 degrees    Note: The 161-8906 Position Sensor provides a Pulse Width Modulated signal to the ECM that is constant frequency. The duty cycle varies with the position of the accelerator pedal. The "ECM Remote Throttle" input cannot be used with a vernier control cable assembly or as an input for the throttle switch. The "ECM Remote Throttle" input must receive the correct PWM signal during any of the following conditions: The ECM is in the ON position., The "PTO Configuration" is programmed to "Remote Throttle". and A diagnostic code is the result.Specifications for the Harness
The harness should be protected from the environment by using a conduit that is plastic or by other means. All of the wire for the harness should be 18 AWG or the wire should be larger. The wire for the harness should be SAE J1128. The wire for the harness should be SXL or GXL. Use an equivalent wire for the harness if one of the types is not available. The acceptable range for wire insulation outside diameter is 2.26 to 3.33 mm (0.089 to 0.131 inch). All ring terminals and all splices that are connected to the harness must be sealed. All ring terminals and all splices that are routed to the engine ECM must be sealed. Seal the terminals and splices with Raychem ES2000 shrink tubing or the equivalent in order to seal the ring terminals and the splices.
Table 2
Components for the 70 Terminal Connector for the ECM    
Description     Usage     Vendor and Vendor Part Number     Caterpillar Part Number    
70 Terminal Connector     Vehicle Harness for the OEM     AMP/776241