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BMW 3-Series (E90 E92) Forum
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If Key Fob Fails to Unlock Doors
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08-24-2007, 01:56 PM | #1 |
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If Key Fob Fails to Unlock Doors
Someone recently posted he was having problems unlocking his doors with his key fob, and we suspected the problem might be electrical. Here's an interesting service bulletin I came across.
SUBJECT Doors will not Unlock Using the Key Fob or Central Locking Button MODEL E90 (3 Series) SITUATION One or more of the doors may not unlock when using the remote key outside the vehicle or the central locking button inside the car. It is still possible however, to unlock the door by using the key in the driver's door lock cylinder or by pulling the door handle on the inside of the car. CAUSE Blown fuse in the Junction Box Electronics (JBE), caused by an excessive amperage draw by one of the door lock actuators or the gas flap actuator. CORRECTION Replace the fuse and the actuator that is drawing excessive amperage. PROCEDURE If fuse 56 in the JBE is blown:
7. Observe the recorded values. The draw at each latch should be within approximately 1 amp of each other. 8. If one latch is drawing significantly more amperage than the others, this latch should be replaced. In some cases it may be necessary to operate the locks many times before one shows an excessive amperage spike. 9. If all 4 latches draw approximately the same current, the gas flap actuator should be measured in a similar way. 10. Remove the right side trim in the luggage compartment per repair instruction RA 51 47 161. 11. Remove some of the wire harness tape as necessary to separate the 2 wires leading to the actuator. 12. Fit the 50A clamp (1) around either one of the wires and measure the amperage draw using the Measuring System screen in the DIS Plus/GT1 while locking and unlocking using the central locking button. 13. If the draw of this actuator is greater than 2A it should be replaced. 14. Re-install any removed components and test by operating the door locks using both the central locking switch and the key fob. If fuse 57 in the JBE is blown:
Part Number Description Quantity 51 21 7 059 967 Door latch – left front As required 51 21 7 059 974 Door latch – right front As required 51 22 7 060 295 Door latch – left rear As required 51 22 7 060 296 Door latch – right rear As required 67 11 6 987 632 Filler flap actuator As required WARRANTY INFORMATION Covered under the terms of the BMW New Vehicle Limited Warranty. Please refer to the latest KSD for all applicable labor operations and allowances. If the appropriate labor operation is not contained in KSD, then a work time labor operation should be used. Defect Code 61 30 01 15 00 |
08-24-2007, 03:25 PM | #2 |
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Good to know. Thanks
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08-25-2007, 05:41 PM | #4 |
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it happened to me 2 weeks ago.....same problem....
all locks failed....include fuel cap. I even couldn't pull the door handle inside of car to open the door tho. |
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08-25-2007, 05:52 PM | #5 |
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08-25-2007, 10:10 PM | #7 |
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08-25-2007, 10:37 PM | #8 |
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What if this happens only now and then?
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08-29-2007, 04:19 PM | #11 |
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feul door seems to lock on me from time to time, usually after a car wash. this is only because the latch inside the feul door is depressed. simply just pull on the edge of the feul door and it should open. then use your finger, and push in on the latch. it should pop it back into its original position.
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08-29-2007, 05:39 PM | #12 | |
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Quote:
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09-16-2007, 09:02 PM | #15 |
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09-08-2011, 06:47 PM | #17 |
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I have this same issue, is this a TSB? and will the dealer replace this for free being outside of warranty? as this is a safety issue. Pulling on the three other door handles will not work or open the doors from the inside and the drivers will only work if the FOB is in the ignition.
Last edited by rock8899; 09-09-2011 at 09:18 AM.. |
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09-09-2011, 05:55 AM | #18 |
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I think he wanted to get into the trunk and there was some question as to whether there was a key cylinder on the trunk lock on the coupe.
Some folks may not be aware that there's a key in the fob that can be pulled out and used to unlock the doors. |
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