The relay works fine, tested with ohm meter.
With engine running i tested RB1 half pulled out: left pin and upper pin, no lamp on these two, isnt that wrong?
Frage, PDC v/h und e-sitze/heizung funktioniert nicht?
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ACE1 -
13. April 2018 um 19:23 -
Erledigt
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87 = Relay Power out 12 V
30 = must have always 12 V85 and 86 = switching current.
Relay RB 1 switches the Power to Fuses FB 1 to FB 8 Rear Box. Why you do not put in a new Relay and see what happens?
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85 = Ground
87 = Relay Power out
30 = must have always 12 V85 and 86 = switching current.
Relay RB 1 switches the Power to Fuses FB 1 to FB 8 Rear Box. Why you do not put in a new Relay and see what happens?
I tried the same relay from RA1, put it in RB1, same same..
without power on pin 30, it must be disconnectet somewhere towards enginbay, perhaps in a connection/stecker?
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Then the Relay ist not the cause.
If no current arrives at relay pin 30 and fuse F20 engine box is OK, then you should measure the whole line between Engine Box F20 and Rear Box Relay for Pass Through
perhaps in a connection/stecker
Maybe.
But a break is also possible at any other point between engine box and rear box. -
Before you continue do one more thing: Pull the FB 9 and the FB 10. They are not switched over the RB1 Relay but they get current over the same line from F20 Engine. One Pin of each must have 12 V always.
Found a Picture of the Backside of the Rear Fusebox. [HERE]
On the left side you can see on the upside the four wires of RB1. Maybe its helpful. -
Do you have a "FC"-Area in your Rear Box?
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I mean a third Fuseblock in the Rear Box. like FA and FB
No matter
Somewhere
near the rear fusebox is a connection point at which the cable from the
F20 engine box is splitted. From F20 to Rear Box the cable has over the whole lenghth a green/red colour. -
I mean a third Fuseblock in the Rear Box. like FA and FB
No matter
Somewhere
near the rear fusebox is a connection point at which the cable from the
F20 engine box is splitted. From F20 to Rear Box the cable has over the whole lenghth a green/red colour.Do i have to take the fusebox out, to see this?
On my car i think fusebox RB is powerede by F18.
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Then pull FC 5, 6 and 8 and test the pins in the box. They also get their power over the Cable from F20 Engine Box. If these also have no power, then the cable from the F20 is probably broken and must be measured
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this point -
Then pull FC 5, 6 and 8 and test the pins in the box. They also get their power over the Cable from F20 Engine Box. If these also have no power, then the cable from the F20 is probably broken and must be measured
all d e a d ( test without ignition )
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On my car i think fusebox RB is powerede by F18.
No, thats for the Central Fusebox over the glove box
all d e a d ( test without ignition )
Cable from F20 probably broken. Like I say - you should measure it.
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this point
Genau den, Tom
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No, thats for the Central Fusebox over the glove box
Cable from F20 probably broken. Like I say - you should measure it.
OK.
Can you see if F20 goes through a connection/stecker, maybe under the driver seat?
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