Craftsman 3130eSC Manual De Usuario

 

 

 

 

 

 

 

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fault code will be stored in memory as a history DTC. If the 
malfunction that caused the history DTC to set does not recur within 
a predetermined length of time (usually within 40-80 ignition key 
start cycles), the computer will automatically erase the related fault 
code from its memory. 

Ford's computer self-diagnostic system is divided into four main 
sections: 

  "Key On Engine Off" (KOEO) Self-Test 

  "Continuous Memory" (CM) Self-Test 

  "Key On Engine Running" (KOER) Self-Test 

  Other EEC-IV System tests 

These Self-Tests are specially designed to monitor and/or test the 
various components and circuits that are controlled by the vehicle's 
computer, and to save and/or transmit diagnostic test results to the 
Scan Tool in the form of numerical fault codes. 

The "Continuous Memory" Self-Test is designed to run continuously 
whenever the vehicle is normal operation. If a fault is detected by the 
"Continuous Memory" Self-Test, a fault code is saved in the vehicle's 
computer memory for later retrieval. 

Ford’s On-Board Diagnostic Self-Tests are designed in such a way that 
in order to properly diagnose a problem, you must perform all the Self-
Tests, in the proper sequence. 

As described previously, some tests are designed to detect problems 
only when the vehicle is in normal operation. Some tests are designed 
to activate components and detect problems only with the Key On and 
Engine Off. Other tests are designed to activate components and test 
their operation only with the Key On and Engine Running. Do not take 
short cuts. If you fail to perform a test, or you perform a test out of 
sequence, you might miss a problem that is only detected during that 
part of the test. 

To view codes in the Scan Tool’s memory: 

  Locate the vehicle’s Data Link Connector (DLC). See TEST 

CONNECTORS on page 73 for connector location.