BOLT 3293702 - Caterpillar

Conditions Which Generate This Code:
Illustration 1 g00531536
System Schematic For Ignition Shutoff Relay (ISR)The GSC+ uses the ignition shutoff relay (ISR) in order to activate the ignition shutdown switch during a shutdown fault. The ISR is located within the relay module. The ignition shutdown switch is an input to the EIS control on the engine.The GSC+ activates the ISR for some active shutdown faults.Note: Whenever the GSC+ activates or the GSC+ attempts to activate the ISR, "K6" is shown on the lower display. When the ISR is not activated, "K6" is not shown.The possible cause of a CID 0446 FMI 12 is an open coil or a shorted coil of the ISR.This troubleshooting procedure is for an active CID 0446 FMI 12 or the troubleshooting procedure is for an inactive CID 0446 FMI 12.Test Step 1. CHECK THE STATUS OF THE DIAGNOSTIC CODE.
Turn the ECS to the OFF/RESET position and then turn the ECS to the STOP position.
Press the "Alarm Codes" key.
Observe the upper display. Check that the CID 0446 FMI 12 is active.
If the diagnostic code is not active, enter the Service Mode. View the fault log for a OP1. Check that the diagnostic code is inactive.Expected Result:A CID 0446 FMI 12 is displayed as an active diagnostic code or CID 0446 FMI 12 is displayed as an inactive diagnostic code.Results:
OK - The CID 0446 FMI 12 is active or the CID 0446 FMI 12 is inactive. Proceed to test step 2.
NOT OK - The CID 0446 FMI 12 has not occurred. The diagnostic code is not active and the diagnostic code is not inactive. Stop.Test Step 2. CHECK THE INTERNAL CABLE OF THE RELAY MODULE.Note: Only open the relay module in a dry environment. If the inspection and repair takes more than approximately twenty minutes replace the desiccant bag in the GSC+ housing. See Testing And Adjusting, "Relay Module - Replace".
Turn the ECS to the OFF/RESET position.
Disconnect the battery negative cable.
Temporarily, remove the relay module from the GSC+. See Testing And Adjusting, "Relay Module - Replace".
Check the cable that attaches the relay module to the GSC+.Expected Result:The cable should be firmly seated in the connector. The clamp should be in place. The cable should not be damaged.Results:
OK - The cable is firmly seated in the connector. The clamp is in place. The cable is not damaged. Reassemble the relay module to the GSC+. Proceed to test step 3.
NOT OK - One or more of the components are damaged or the components are missing.Repair: Replace the clamp if the clamp is missing. If the cable is damaged, replace the GSC+. See Testing and Adjusting, "EMCP Electronic Control (Generator Set) - Replace". Stop.Test Step 3. PERFORM A FUNCTIONAL CHECK ON THE ASR.
Turn the ECS to the OFF/RESET position.
Reconnect the battery negative cable.
Disconnect all wires from RM-19 and RM-5 of the relay module.
Remove fuse "F3" from the relay module.
At the relay module, measure the resistance from RM-19 to RM-5. Make a note of the resistance measurement.
Turn the ECS to the STOP