Can a check engine light be tested intermittently?

Can a check engine light be tested intermittently?

Testing for an intermittent problem is useless if the actual symptom is not present . The hardest part of these check engine light issues is re-creating the fault, but it is also the most important!

How to troubleshoot an ICM error code on a Harley?

Speedometer Self Diagnostics: The speedometer is capable of displaying and clearing speedometer, tachometer, TSM/TSSM and ICM/ECM Diagnostic Trouble Codes (DTC). Turn Ignition switch to OFF & Run/Stop switch is to Run. Push odometer reset button in & hold. Turn ignition switch to Ignition and release the odometer reset button.

How to check engine light on Harley Davidson?

Turn Ignition switch to OFF & Run/Stop switch is to Run. Push odometer reset button in & hold. Turn ignition switch to Ignition and release odometer reset button. Background lighting should illuminate, speedometer needle should sweep its full range and indicator lamps (battery, security, low fuel, check engine and cruise) should illuminate.

How do I get the DTC code on my Harley Davidson?

To get the DTC within an area of diagnostics, push and hold the odometer reset button in for 5 seconds and release. If there are any DTCs the code will be displayed or the word “none” will appear if there are no DTCs.

What are the steps in a no start diagnostic?

Steps 1 through 6 in the “Ford Hard Start/No Start Diagnostic Guide” deal with visual inspection, engine oil quality, intake/exhaust restrictions, fuel quality and fuel pump pressure and volume. Steps 7 through 9 cover checking for diagnostic trouble codes (DTCs) and performing KOEO tests.

How to check for power in starter relay?

Check for power on the load side of the starter relay terminals, If you have power try jumping the load side relay terminals (there is a diagram on the side of the relay), might just be the relay itself. I have chased connection issues in these under hood fuse/relay boxes, they tend to get corroded on the backside.

How to diagnosis a Ford Power Stroke no start?

But they can do this only because they understand how the system operates. Technicians with limited experience will most likely begin with the “Hard Start/No Start Diagnostic Guide” developed by Ford. It can be found here.

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