019-080   Remote PTO Switch

General Information

TOC

A remote PTO switch is available for applications where PTO operation control is desired from outside the cab.

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The remote PTO switch circuit consists of pin 15 (remote PTO engage signal), pin 10 (switch common +5-VDC supply), and a remote ON/OFF switch.

NOTE: Remote PTO installation will vary. Some installations can use a relay.

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Resistance Check

TOC

If INSITE™ is available, monitor the remote PTO switch for proper operation. If

not, follow the troubleshooting procedures in this section.

Locate the remote PTO ON/OFF switch. Tag and remove the two connectors from the terminals on the switch. Touch the multimeter probes to the terminals on the switch.

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Move the remote PTO switch to the OFF position and measure the resistance. The multimeter

must show an open circuit (100k ohms or more). If the circuit is

not open, the switch has failed. Refer to the OEM troubleshooting and repair manual for the replacement procedures.

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Move the remote PTO switch to ON and measure the resistance. The multimeter

must show a closed circuit (10 ohms or less). If the circuit is

not closed, the switch has failed. Refer to the OEM troubleshooting and repair manual for the replacement procedures.

If the resistance value is correct, the switch

must still be checked for a short circuit to ground.

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Check for Short Circuit to Ground

TOC

Remove one of the multimeter probes from one of the switch terminals and touch it to the chassis ground. The switch

must be ON. Measure the resistance. The multimeter

must show an open circuit (100k ohms or more). If the circuit is

not open, the switch has failed. Refer to the OEM troubleshooting and repair manual for the replacement procedures.

If the remote PTO switch passed all of the previous checks, pin 15 and pin 10

must be checked for an open circuit, a short circuit to ground, a short circuit from pin to pin, and a short circuit to an external voltage source. Connect the switch to the wiring harness.

Connect all components after the repair is complete.

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Last Modified:  10-Feb-2003

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