MBE 900/4000 SID 60 Troubleshooting

Troubleshooting SID 60

The following procedures will troubleshoot SID 60.‪

060 05 – Fan Open Circuit

Perform the following steps to troubleshoot a fan open circuit fault.‪

1. Bridge pins 2 and 3 on the fan electrical connector. See Figure “Pin Locations on Fan Electrical Connector” .
   

   1. Pin 1‪	3. Pin 3‪
   2. Pin 2‪	4. Fan Connector‪

   Figure 1. Pin Locations on Fan Electrical Connector

   1. If code 060 06 is active, repair or replace the fan control clutch. Erase fault code memory.
   2. If code 060 06 is not active, go to step 2 .
2. Measure resistance between pins 43 and 12 on the 55-pin connector. See Figure “55-Pin Wiring Harness Connector” and see Figure “Location of Fan Control Wires ” .
   

   1. 55-Pin Wiring Harness Connector‪

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   Figure 2. 55-Pin Wiring Harness Connector

   

   Figure 3. Location of Fan Control Wires

   1. If resistance is less than 3 Ω, contact Detroit Diesel Technical Service.
   2. If resistance is greater than 3 Ω, repair open circuit in wire 43 or wire 12 on the 55-pin connector. Erase fault code memory.

060 06 – Fan Short to Ground

Perform the following steps to troubleshoot a fan short to ground fault:‪

1. Unplug cooling fan.
   1. If new fault 060 05 is active when the cooling fan is unplugged, repair or replace the fan control clutch. Erase fault code memory.
   2. If new fault 060 05 is not active when the cooling fan is unplugged, go to step 2 .
2. Measure the resistance between wire 41 and wire 12 on the 55-pin connector. See Figure “Location of Fan Control Wires ” .
   1. If the resistance is less than 30 kΩ, repair short circuit between wire 41 and wire 12 on the 55-pin connector. Erase fault code memory.
   2. If resistance is greater than 30 kΩ, go to step 3 .
3. Measure the resistance between wire 43 and wire 12 on the 55-pin connector. See Figure “Location of Fan Control Wires ” .
   1. If resistance is less than 30 kΩ, repair short circuit between wire 43 and wire 12 on the 55-pin connector. Erase fault code memory.
   2. If resistance is greater than 30 kΩ, go to step 4 .
4. Measure the resistance between wire 43 and vehicle ground.
   1. If resistance is greater than 30 kΩ, contact Detroit Diesel Technical Service.
   2. If resistance is less than 30 kΩ, repair short to ground in wire 43 of the 55-pin connector. Erase fault code memory.