170 RENR5042-02 Troubleshooting Section Results: OK – The wiring and connectors are OK. Proceed to Test Step 2. Not OK – There is a problem with the wiring and/or a connector. Repair: Repair the wiring and/or the connector. Replace parts, if necessary. Ensure that all of the seals are properly connected. Verify that the repair eliminates the problem. STOP. Test Step 2. Test the Switch for Proper Operation A. Disconnect the P1 connector. B. Refer to Table 20. Determine the P1 terminal for the suspect switch.
Table 20 g01121946 Illustration 88 P61/J61 terminals for the various switches (2) Torque limit switch (12) Maintenance clear switch (19) PTO interrupt switch (27) Remote shutdown switch (28) Intermediate engine speed switch (29) PTO enable switch (30) PTO ramp up/set switch (38) Ether starting aid switch (39) PTO ramp down/resume switch (40) Overspeed verify switch C. Perform a 45 N (10 lb) pull test on each of the wires in the circuit for the suspect switch. D. Check the allen head screw on each ECM connector for the proper torque. Refer to Troubleshooting, “Electrical Connectors - Inspect” for the correct torque values. E.
Check the allen head screw on the customer connector for the proper torque. Refer to Troubleshooting, “Electrical Connectors - Inspect” for the correct torque value. F. Check the harness and wiring for abrasions and for pinch points from the battery to the ECM. C. Connect a meter lead to the P1 terminal for the suspect switch. Connect the other meter lead to engine ground. Expected Result: All connectors, pins, and sockets are completely coupled and/or inserted, and the harness and wiring are free of corrosion, of abrasion or of pinch points.
Terminals for the Switch Inputs Name of the Switch P1 Terminals J61/P61 Terminals Maintenance clear switch 6 12 Torque limit switch 7 2 Ether starting aid switch 22 38 PTO interrupt switch 41 19 Remote shutdown switch 44 27 Intermediate engine speed switch 45 28 Overspeed verify switch 54 40 PTO enable switch 56 29 PTO ramp up/set switch 58 30 PTO ramp down/resume switch 60 39