F 350 2WD Super Duty V8-5.4L VIN 5 (2006)
P0620 - P0624: Testing and Inspection
P0623
For diagnosis of code P0623, refer to chart:
P0500-P1639
If there is no link in the chart then:
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This code is not a valid code for this vehicle
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Or information published by the manufacturer for this vehicle did not include this code
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For complete diagnosis of the Instrument Cluster, follow this link: See: Instrument Panel, Gauges and Warning Indicators/Testing and Inspection