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Originally Posted by f5fstop
Programmer's cool, but check engine light should not show for history codes, once the active code is set and the problem is corrected (e.g., generator sets a code, but with the belt back on, problem is corrected so code goes to history status).
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I don't think that's the case for all codes that get set. I ran across a couple that would not turn the light off unless there were 3 ignition cycles.
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Action Taken When the DTC Sets - Type A
The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.
Action Taken When the DTC Sets - Type B
The control module illuminates the MIL on the second consecutive ignition cycle that the diagnostic runs and fails.- Conditions for Clearing the MIL/DTC - Type A or Type B
- The control module turns OFF the MIL after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
- A current DTC Last Test Failed clears when the diagnostic runs and passes.
- Use a scan tool in order to clear the MIL and the DTC.
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