You should first check the 175-amp battery fuse. If the 175-amp battery fuse OR circuit 506 is open, no voltage will be present on circuit 506 at the PCM. This will cause the P0380 to set. The ECM monitors the glow plug signal using circuit 506. The ECM expects to see battery voltage on circuit 506 when the glow plugs are commanded on.
Jun 11, 2012 · Mornin,further to last nights posts engine code is z17dth and the wire colours with the pin numbers and digits on the bottom of the glow plug relay are 30 red perm live 31 brown earth 15 black ign live g1 black glow plugs g2 black glow plugs d1 blue ?? st brown/grey ?? the blu wire and the brown/grey are the 2 i need to test regards alan.
Long life - Premium 6.5 diesel glow plugs are designed for longevity, and also to resist the swelling problem common with many poorly designed glow plugs that makes removal difficult or impossible. Fits all 1994 to 2002 GM 6.5L diesels with electronic injection.
Glow Plug Power Distribution test: 1. Perform this test with the ignition key off. Damage to the meter may result if the key is accidentally cycled 2. Set the multi-meter to ohms (conductivity) lowest scale (X1 is best) 3. Connect one meter lead to a good ground point (use the jumper wire if necessary) 4.
Open the power relay box by pressing in the tab on the lid and pulling up at the same time. Step 3 Examine the inside lid of the power relay box. There will be a wiring diagram that shows you the proper wiring of the glow plugs to the engine.
2004.5-2005 GM 6.6L Duramax LLY Glow Plugs, set of 8 DRX00058 Replace your old failing or dead glow plugs with a complete new set of DieselRX glow plugs. Made in the USA. Signs of failing glow plugs are hard start up, rough idle, hesitation and white smoke on start up tell warm.
To test for this condition, the vehicle must be cold. Place an Amp clamp on a glow plug wire and turn the ignition to on. If there is no current to the glow plugs with the glow plug