CORE AS- 1634058 - Caterpillar

Service Error ID's are displayed when the Cat ET Service test has failed. The Service Error ID's are to help explain why the service has test failed. There could be cases when the service test error ID will isolate the failed component. If applicable use the appropriate troubleshooting procedure.
Table 1
Service Error Identifiers Description Troubleshooting
Fuel System Functional Test
$111D Fuel Rail High Pressure Decay Too High Refer to Troubleshooting, "Fuel Flow is High". Refer to Test Step "Perform Fuel System Functional Test".
$111E Fuel Rail Low Pressure Decay Too High
$111F Fuel Pump Flow Too Low
$1108 Excessive Engine RPM Change Do not allow engine RPM to fluctuate more than 100 RPM during test.
$108C Coolant Temp Low Coolant temperature must be greater than 40° C (104° F)
$0002 Active Diagnostic Present Resolve any active diagnostic codes. Refer to the appropriate troubleshooting procedure.
$10CB Engine Load Too High Fuel rate is too high for the test. Reduce load applied to the engine during the test.
$10D0 Engine Has Not Been Running Long Enough Engine must be running during the test, start the engine before starting the test.
$0009 Service Test Aborted By ECM Check the service tool connection, do not abort the test before the test is complete. Repeat the test, if necessary.
$10A7 Coolant Temperature Too Low Allow the engine to warm up.
$10C1 Primary Speed Timing Sensor Signal Not Responding Refer to Troubleshooting, Speed/Timing - Test.
$10C2 Secondary Speed Timing Sensor Signal Not Responding Refer to Troubleshooting, Speed/Timing - Test.
$10C3 Tertiary Speed Timing Sensor Signal Not Responding Refer to Troubleshooting, Speed/Timing - Test.
$10C4 Fuel Rail Pressure Sensor Signal Not Responding Refer to Troubleshooting, Sensor Signal (Analog, Active) - Test.
$10F5 Excessive Change in Engine Load There was a change in the engine load while the test was running. Make sure that the engine load is constant while performing the test.
$10FB Engine Speed Too Low Engine Speed Too Low
$10FC Engine Speed Too High Engine Speed Too High
$103 Service Test Value Out of Range Proper measurements were not accomplished. Retry the service test.
$105F Test Timed Out Service test timed out.
$1101 Fuel Rail Pressure Too Low This error ID indicates that the fuel rail pressure relief valve has failed. Refer to Troubleshooting, Fuel Flow is High.
$1117 Fuel Pressure Too Low Refer to Troubleshooting, Fuel Pressure is Low.
$1213 Engine Oil Pressure Too Low The engine oil pressure is too low to perform the test. Refer to Troubleshooting, "Oil Pressure Is Low".
EGR System Test
$0002 Active Diagnostic Present Resolve active diagnostics. Refer to appropriate story
$116F Engine Exhaust Gas Recirculation Valve Not Responding to Command Refer toTroubleshooting, "NOx Reduction System - Test". Refer to test step "Perform EGR System Test".
$1156 Exhaust Gas Recirculation Differential Pressure Not Responding Refer toTroubleshooting, "NOx Reduction System - Test". Refer to test step "Perform EGR System Test".
$1157 Exhaust Gas Recirculation Intake Pressure Not Responding Refer toTroubleshooting, "NOx Reduction System - Test". Refer to test step "Perform EGR System Test".
$1170 Engine Exhaust Back Pressure Regulator Not Responding to Command Refer toTroubleshooting, "NOx Reduction System - Test". Refer to test step "Perform EGR System