#DIAGNOSTICS #CODING #BMW
In my case I used K+DCAN (INPA) car diagnostics cable and ISTA-D Soft.
You can use any kind of diagnostics tool. This can only be done with INPA only.
ISTA-D is more comfortable and very clear to see where is a problem.
Diagnostics with ISTA-D:
Posible causes for Glow plug relay malfunction:
Fault Code: 4203 Glow plug Control unit, No Communication Via bit serial data interface
Fault Codes: 4212, 4222, 4232, 4242, 4252, 4262 Glow plug Cylinder 1,2,3,4,5,6
There is an options for this faults. Because these faults can show deterioration of glow plugs itself. But also it could be malfunction of Glow plug relay. You need to know when was the glow plugs replaced. And before replaceing glow plug relay you need to test the glow plugs.
Also If all glow plugs do not work before replacing the glow plug relay you need to check the continuity of wiring:
-Wiring between glow plugs and glow plug relay.
-Wiring from glow plug relay and alternator.
For example if you have all falut codes on glow plugs: 4212, 4222, 4232, 4242, 4252, 4262. And have 4A07 Alternator fault code the probles is +12 volts supply on your glow plug. So first you need to be sure that you have good power supply.
#CARREPAIR #DIAGNOSTICS #CODING #BMW #DIY
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