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The BMW Range
3 Series
E90, E91, E92, E93
Comfort access for passenger door handle not working
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<blockquote data-quote="jarance" data-source="post: 755914" data-attributes="member: 21"><p>Extract from <a href="https://www.newtis.info/tisv2/a/en/e90-320d-lim/repair-manuals/61-general-vehicle-electrical-system/1sv8FA4" target="_blank">https://www.newtis.info/tisv2/a/en/e90-320d-lim/repair-manuals/61-general-vehicle-electrical-system/1sv8FA4</a></p><p></p><p><strong>The following control units are involved in the central locking system:</strong></p><p></p><ul> <li data-xf-list-type="ul">CAS: Car Access System<br /> <br /> All the rules for controlling the central locking system are integrated in the CAS control unit. The commands are transferred via the body CAN.<br /> <br /> <a href="https://www.newtis.info/tisv2/a/en/e90-320d-lim/repair-manuals/61-general-vehicle-electrical-system/25jh0v0" target="_blank">[for further information, please refer to BMW Service Technology (SBT) 61 03 03 019]</a><br /> <br /> </li> <li data-xf-list-type="ul">JBE: Junction Box Electronics<br /> <br /> The junction box electronics are the executing control unit for the central locking system. The<br /> <br /> The junction box electronics assume the task of actuating all central locking drives.<br /> <br /> The junction box consists of the junction box electronics and the power distribution box. The junction box is installed under the glove box.<br /> <br /> <a href="https://www.newtis.info/tisv2/a/en/e90-320d-lim/repair-manuals/61-general-vehicle-electrical-system/1tpXjPL" target="_blank">[for further information, please refer to BMW Service Technology (SBT) 61 05 04 095]</a><br /> <br /> </li> <li data-xf-list-type="ul">FRM: Footwell module<br /> <br /> The footwell module evaluates the status of the Hall effect sensors in the door contacts. When the vehicle is locked or unlocked with the mechanical key element, the footwell module will recognise this request. The footwell module transmits a message on the K‐CAN to the CAS control unit (CAS: Comfort Access System).<br /> <br /> The footwell module is installed at the A-pillar down in the footwell of the driver's side.<br /> <br /> <a href="https://www.newtis.info/tisv2/a/en/e90-320d-lim/repair-manuals/61-general-vehicle-electrical-system/1qXzYLi" target="_blank">[for further information, please refer to BMW Service Technology (SBT) 61 04 04 094]</a><br /> </li> </ul><p>The following actuators are activated by the central locking system:</p><p></p><ul> <li data-xf-list-type="ul">Door lock<br /> <br /> The door locks comprise:<br /> <ul> <li data-xf-list-type="ul">2 drives with gearing</li> <li data-xf-list-type="ul">Hall effect sensors as door contact</li> </ul>[more ...]<br /> <br /> </li> <li data-xf-list-type="ul">Drives in the door locks<br /> <br /> There are 2 drives in each door lock. The locking mechanism can be brought into the following position by the drives:<br /> <ul> <li data-xf-list-type="ul">Locking: door can still be opened from the inside</li> <li data-xf-list-type="ul">Deadlock: Door can be opened neither from the outside nor from the inside.</li> <li data-xf-list-type="ul">Unlocking: door can be opened from the inside and outside</li> </ul></li> <li data-xf-list-type="ul">Drive for fuel filler flap<br /> <br /> The drive locks/unlocks the fuel filler flap.<br /> <br /> </li> <li data-xf-list-type="ul">Drive for the rear lid lock<br /> <br /> The drive unlocks the tailgate.<br /> <br /> </li> <li data-xf-list-type="ul">Drive for rear window locking<br /> <br /> > E91<br /> <br /> The drive unlocks the rear window.<br /> <br /> </li> <li data-xf-list-type="ul">Drive for electrically locking glove box<br /> <br /> > E93<br /> <br /> If central locking is activated vie the central locking system, the door lock cylinder or Comfort Access (CA), the drive will block the glove box opener.<br /> <br /> In this situation, it is only possible to open the glove box with the mechanical key.<br /> <br /> If the glove box was locked with the mechanical key, it can only be opened again with the mechanical key.<br /> <br /> </li> <li data-xf-list-type="ul">Drive for electric locking of storage compartment in centre console<br /> <br /> > E93<br /> <br /> The drive locks the storage compartment in the centre console<br /> <br /> In the event of a flat or faulty battery, the storage compartment in the centre console can be released in an emergency using a cable assembly.<br /> <br /> </li> <li data-xf-list-type="ul">Release drive for roller cover for luggage compartment<br /> <br /> > E91<br /> <br /> There is an release drive on the left and right-hand sides of the D-pillar.<br /> <br /> To unlock the roller cover for luggage compartment, the release drives are actuated for about 2 seconds by the junction box electronics.<br /> </li> </ul><p>System functions</p><p>The central locking system incorporates the following functions:</p><ul> <li data-xf-list-type="ul">Locking</li> <li data-xf-list-type="ul">Deadlocking</li> <li data-xf-list-type="ul">Unlocking</li> <li data-xf-list-type="ul">Hotel setting</li> <li data-xf-list-type="ul">Crash unlocking</li> <li data-xf-list-type="ul">Forced deadlock release</li> <li data-xf-list-type="ul">Lockout protection</li> <li data-xf-list-type="ul">Repeat interlock</li> <li data-xf-list-type="ul">Automatic relocking</li> <li data-xf-list-type="ul">Voltage monitoring</li> <li data-xf-list-type="ul">Selective unlocking</li> <li data-xf-list-type="ul">Speed-dependent locking</li> <li data-xf-list-type="ul">Locking the fuel filler flap</li> </ul><p></p><p>Locking</p><p></p><p>A locked door cannot be opened from the outside. However, the door can still be opened from the inside. To do this, the inner door handle must be pulled twice.</p><p></p><p>Locking is carried out in the following ways:</p><p></p><ul> <li data-xf-list-type="ul">Operation of the central locking button (condition: front doors must be closed)</li> <li data-xf-list-type="ul">Operation via the driver's door lock barrel or the ID transmitter, where the conditions for deadlocking are not fulfilled (see ”Deadlocking”).</li> <li data-xf-list-type="ul">Driver's door closed</li> </ul><p></p><p>Deadlocking</p><p></p><p>A deadlocked door cannot be opened from the inside or outside.</p><p></p><p>Deadlocking is carried out if the driver's door is locked via the lock barrel (in the BMW 1-Series only with DWA or Comfort Access) or via the ID transmitter.</p><p></p><p>Preconditions:</p><p></p><ul> <li data-xf-list-type="ul">Terminal R OFF</li> <li data-xf-list-type="ul">Driver's door or front passenger door was opened</li> <li data-xf-list-type="ul">Driver's door closed</li> </ul><p>When the vehicle is deadlocked, the anti-theft alarm DWA is also primed.</p><p></p><p></p><p>Unlocking</p><p></p><p>An unlocked door can be opened from the inside and the outside.</p><p></p><p>When the vehicle is unlocked, the alarm system (DWA) is also deactivated.</p></blockquote><p></p>
[QUOTE="jarance, post: 755914, member: 21"] Extract from [URL]https://www.newtis.info/tisv2/a/en/e90-320d-lim/repair-manuals/61-general-vehicle-electrical-system/1sv8FA4[/URL] [B]The following control units are involved in the central locking system:[/B] [LIST] [*]CAS: Car Access System All the rules for controlling the central locking system are integrated in the CAS control unit. The commands are transferred via the body CAN. [URL='https://www.newtis.info/tisv2/a/en/e90-320d-lim/repair-manuals/61-general-vehicle-electrical-system/25jh0v0'][for further information, please refer to BMW Service Technology (SBT) 61 03 03 019][/URL] [*]JBE: Junction Box Electronics The junction box electronics are the executing control unit for the central locking system. The The junction box electronics assume the task of actuating all central locking drives. The junction box consists of the junction box electronics and the power distribution box. The junction box is installed under the glove box. [URL='https://www.newtis.info/tisv2/a/en/e90-320d-lim/repair-manuals/61-general-vehicle-electrical-system/1tpXjPL'][for further information, please refer to BMW Service Technology (SBT) 61 05 04 095][/URL] [*]FRM: Footwell module The footwell module evaluates the status of the Hall effect sensors in the door contacts. When the vehicle is locked or unlocked with the mechanical key element, the footwell module will recognise this request. The footwell module transmits a message on the K‐CAN to the CAS control unit (CAS: Comfort Access System). The footwell module is installed at the A-pillar down in the footwell of the driver's side. [URL='https://www.newtis.info/tisv2/a/en/e90-320d-lim/repair-manuals/61-general-vehicle-electrical-system/1qXzYLi'][for further information, please refer to BMW Service Technology (SBT) 61 04 04 094][/URL] [/LIST] The following actuators are activated by the central locking system: [LIST] [*]Door lock The door locks comprise: [LIST] [*]2 drives with gearing [*]Hall effect sensors as door contact [/LIST] [more ...] [*]Drives in the door locks There are 2 drives in each door lock. The locking mechanism can be brought into the following position by the drives: [LIST] [*]Locking: door can still be opened from the inside [*]Deadlock: Door can be opened neither from the outside nor from the inside. [*]Unlocking: door can be opened from the inside and outside [/LIST] [*]Drive for fuel filler flap The drive locks/unlocks the fuel filler flap. [*]Drive for the rear lid lock The drive unlocks the tailgate. [*]Drive for rear window locking > E91 The drive unlocks the rear window. [*]Drive for electrically locking glove box > E93 If central locking is activated vie the central locking system, the door lock cylinder or Comfort Access (CA), the drive will block the glove box opener. In this situation, it is only possible to open the glove box with the mechanical key. If the glove box was locked with the mechanical key, it can only be opened again with the mechanical key. [*]Drive for electric locking of storage compartment in centre console > E93 The drive locks the storage compartment in the centre console In the event of a flat or faulty battery, the storage compartment in the centre console can be released in an emergency using a cable assembly. [*]Release drive for roller cover for luggage compartment > E91 There is an release drive on the left and right-hand sides of the D-pillar. To unlock the roller cover for luggage compartment, the release drives are actuated for about 2 seconds by the junction box electronics. [/LIST] System functions The central locking system incorporates the following functions: [LIST] [*]Locking [*]Deadlocking [*]Unlocking [*]Hotel setting [*]Crash unlocking [*]Forced deadlock release [*]Lockout protection [*]Repeat interlock [*]Automatic relocking [*]Voltage monitoring [*]Selective unlocking [*]Speed-dependent locking [*]Locking the fuel filler flap [/LIST] Locking A locked door cannot be opened from the outside. However, the door can still be opened from the inside. To do this, the inner door handle must be pulled twice. Locking is carried out in the following ways: [LIST] [*]Operation of the central locking button (condition: front doors must be closed) [*]Operation via the driver's door lock barrel or the ID transmitter, where the conditions for deadlocking are not fulfilled (see ”Deadlocking”). [*]Driver's door closed [/LIST] Deadlocking A deadlocked door cannot be opened from the inside or outside. Deadlocking is carried out if the driver's door is locked via the lock barrel (in the BMW 1-Series only with DWA or Comfort Access) or via the ID transmitter. Preconditions: [LIST] [*]Terminal R OFF [*]Driver's door or front passenger door was opened [*]Driver's door closed [/LIST] When the vehicle is deadlocked, the anti-theft alarm DWA is also primed. Unlocking An unlocked door can be opened from the inside and the outside. When the vehicle is unlocked, the alarm system (DWA) is also deactivated. [/QUOTE]
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Comfort access for passenger door handle not working
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