Mazda CX-9 Instructions Manual Download Page 17 | Manualshive

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Automatic door-lock/unlock

CX-9 /2007 Version 1.0

Page 17

Appendix-C: Remove panels and (dis)connect battery

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Summary of Contents for CX-9

Page 1: ...d to find that there is NO automatic door lock I have searched Internet and many people had the same surprise It was confirmed by Mazda that the CX9 does not have automatic door lock either Time for a...

Page 2: ...will built and install I wish you a TON of pleasure with the descriptions below I tried to be complete and as helpful as possible Take time to read the document maybe 2 times before you start It can...

Page 3: ...spikes to the capacitor C3 Don t be a wise guy and a put a diode over the relay B and relay C the circuit will not work Pulse When contact C closes e g relay A is on because the parking brake is on r...

Page 4: ...a door lock signal is sent to the contact D Contact D is in NO and the ground signal is sent directly to the car computer This indicates an unlock signal and the doors will unlock After 1 5 seconds th...

Page 5: ...itor C1 will be discharged and relay C will activate Contact A is set to NO preventing a door lock signal to be sent to the contact D When relay A is dropping off it will activate relay B through cont...

Page 6: ...once it is installed and wonder how you could have lived without it In case you want unlock sometimes but not all of the time you can consider an extra switch on the dashboard to allow unlock when yo...

Page 7: ...ed With a little bit of patience and good looking checking it was an easy job in 1 hour and performed the in house test chapter 5 I used a battery charger for the 12V I have drilled a hole in the plas...

Page 8: ...ted to the MIN o Take the Red wire from the 12V and hold to MIN to discharge Capacitors C1 o Locate Relay C and make sure you can see it well o Reconnect Red wire to 12V and watch relay C It should ac...

Page 9: ...o times the capacitor C2 1000uF this should not be a problem but if you have old capacitors they tend to dry out and lose their power o Make sure black wire is connected to MIN o Make sure the white w...

Page 10: ...precaution See Appendix C a Disconnection with clear radio channels and seat memory Remove the panels See Appendix C Appendix C shows the Body Control Module BCM It is located at the front behind the...

Page 11: ...ated so far If that did happen however go to chapter 9 diagnose step 1 B Press and release the parking brake off to remove the parking brake The doors should lock If that does not happen go to chapter...

Page 12: ...dashboard You will find a good place high up under the dashboard Also use tire wraps tie wire to make sure that the wires are secured and not in the way Replace the panels Appendix D Last but not lea...

Page 13: ...e than half the value of C2 this is unusual action to take as the change is less than 0 001 that this is the cause but you never know Step 2 The doors won t lock or unlock 1 If you don t hear a clicki...

Page 14: ...w lock you have reversed the resistor R2 connection on the relay we are only human o Don t hold the UNLOCK door switch pressed at the same time as pressing and releasing the parking brake It would har...

Page 15: ...Power on off Reset Relay A Relay B Relay C Contact B Contact A Contact C Contact D NO NO NO NO C3 100uF 25V D2 1N4001 The circuit has 3 major parts build around 3 separate relays 1 Activator Triggere...

Page 16: ...s good as well e g 6V 30V A 12V DPDT Relay Double Pole Double Throw relay B 12V SPDT Relay Single Pole Double Throw relay C 12V SPDT Relay Single Pole Double Throw relay Wire 0 75 mm2 18 Gauge Availab...

Page 17: ...Automatic door lock unlock CX 9 2007 Version 1 0 Page 17 Appendix C Remove panels and dis connect battery...

Page 18: ...CX 9 2007 Version 1 0 Page 18 BCM Reconnect the battery a Verify that all connections are secure b Turn the ignition switch to RUN position c Reconnect the negative battery cable d Turn the ignition...

Page 19: ...Automatic door lock unlock CX 9 2007 Version 1 0 Page 19 Appendix D Re installing panels...

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