Points. 1. Aug 8, 2006. #1. I have a 2003 Ducato 2.0 JTD. Recently, the speedometer has become faulty -. For first 10 miles approx of every trip, the speedo reads zero, then gradually jumps into life and behaves perfectly thereafter. Mileometer does not register until speedo starts to work. Van has only done 8500 miles. on October 7, 2013. Several diesel glow plug problems can arise. Usually, glow plug failure is due to excessive heat, or high voltages reaching the plug. High voltage can be caused by a controller that is starting to go bad. Additionally, if there is faulty wiring, or a problem with the controller, the glow plug (s) may be receiving power all
The P0380 code is a standard OBD-II trouble code suggesting an issue within the glow plug heater circuit. When the powertrain control module (PCM) detects a variation in the voltage from the “A” area of the glow plug heater circuit that is more than a 10 percent variation from the expected output, the P0380 code will be detected.
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