Wiring up the heater elements on the electric door mirrors.
I'm trying to replace my door mirror glass on an MX5 2002 model with the heated door mirror type. I have removed the door panels and checked the wiring to the the door mirrors motor and there are two extra wires leading from the car to a plug connector inside he door panel. There is no live feed. I have checked all the fuses, including the fuses under the bonnet. The car manual refers to operating the door mirror defroster by switching on the rear window defroster. Can you advise if these extra two wires are for the heater elements on the door mirrors, and how do get a live feed.
Re: Wiring up the heater elements on the electric door...
Hi, I have a Mazda 6 Estate - I've just had the glass out of my mirror this evening, because my mirror heater is not working - there was a bunch of wires into the mirror unit - two of which went to spade connections on the back of the mirror. The glass itself is on a plastic mount. The mount and the glass should just lever/pull out - that's what I did with mine - I was worried it was going to break though, it took substantial force! Once out I could see a plastic rectangle with rounded corners that it had been clipped onto. It clipped back into place with out any difficulty (on mine there is a wire guide behind the glass - just make sure that you haven't bent it upon removal - I had, but the pliers straightened it again).
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Could have a DDS an PDS .depends on what RPO code yours has >
Outside Mirror Description and Operation (with RPO DL3)
Outside Mirror Description and Operation (without RPO DL3)
Heated Outside Rearview Mirror Operation
The REAR DEFOG relay controls the operation of the heated outside rearview mirrors. When rear window defogging is requested, the REAR DEFOG relay is energized and B+ is applied to the supply voltage circuit of the mirror heater element, located in the mirror face. A constant ground is also applied to the mirror face. Current will pass through the mirror heater element, warming the mirror, so long as the rear window defogger is commanded ON.
Heated Outside Rearview Mirror
The DDS and PDS control the activation of the mirror heaters. Upon receiving a serial data message indicating a request for heated mirrors, the DDS and PDS, will apply voltage to the mirror heater element supply voltage circuit. The mirror heaters will remain active until a new message is received indicating rear defogger is to be deactivated.
The power mirror system consists of the following components:
• Driver Door Switch (DDS)--An electronic control module with integrated switches and requires programming when replaced
• Passenger Door Switch (PDS)--An electronic control module with integrated switches, requires programming when replaced
• Power Mirror Direction Switch--Integrated into DDS and is a four position momentary switch that provides a signal input to the DDS for up, down, left/extend and right/retract with a mirror switch activation
• Mirror Select Switch--Integrated into DDS and is a three position switch that allows the operator to select the left or right mirror and also a neutral/fold position
• Mirror Extend/Retract Switch--Integrated into DDS and is a two position switch that allows the operator to select the mirror extend or mirror retract position
• Left Outside Power Mirror--Contains both the vertical and horizontal mirror motors
• Right Outside Power Mirror--Contains both the vertical and horizontal mirror motors
• Body Control Module--An electronic control module that requires programming when replaced, serves as the power mode master and is the main message handler
• Horizontal and Vertical Position Sensors, if equipped with memory mirrors--Supplied a 5-volt and low reference by the DDS/PDS and provide a variable voltage signal to the DDS/PDS that is proportional to mirror position
• Folding Mirror Motor, in each of the outside mirrors, if equipped with power fold mirrors--Provides extend and retract movements of the mirror and is serviced as a complete mirror assembly
Your best bet mite be to take to a qualified repair shop , i really don't think you'll be able to do anything with it.
Do you have wiring diagrams so you know which wires to test ,do you know how to do electrical testing ?
The Driver Door Switch (DDS) and Passenger Door Switch (PDS) supply voltage to the outside rearview mirror heater elements upon receipt of a serial data message from the HVAC module indicating that the rear defrost system is active. The door switch supplies B+ through the driver/passenger mirror heating element supply voltage circuit when a request is seen. Ground is applied through the driver/passenger mirror heating low reference circuit.
Hi. If it is a late model VW then you need to pul the mirror out. It is held in by clips, use a large flat plastic lever to pull out. Be careful as they break easily. Test the leads of the heater element with a bulb type test light. If it lights then replace the mirror glass, if not then it is more likely the switch. If only one works, then check the wiring harness at the rubber boot between the door and A pillar for broken wires. Also check that the outside temp sender is working, as in warmer climates the heater circuit switches off above 9 degree Celcius. Kind regards, Neil
There should be a plug for the heater element. I think a new replacement comes with it, I am unsure. But just remove the old glass by using a screwdriver, wrapped in tape if you want, to pry it from the clips. The clips will release it, then unplug the heater element wire that is in the mirror. Plug the new mirror heater element, install mirror, it snaps into place, just give it a little pressure to make sure it is seated in the clips correctly.
Before servicing the vehicle, refer to the Precautions Section.
Remove or disconnect the following:
Disconnect the negative battery cable.The mirror inside cover trimThe door panelThe electrical connector to mirror motorThe nut attaching mirror assembly to door frameThe outside rear view mirror
Fig. Removing cover trim and nut Removing cover trim and nut
Fig. Removing mirrored glass from assembly Removing mirrored glass from assembly
Remove the mirror glass:
Fold the mirror glass forwards and inwards as illustrated.
Grasp and pull the mirror glass lengthways until it releases.
Work the glass out.
Remove electric motor:
Remove the 3 screws from behind the mirrored glass.
Separate the connectors
Remember the positions of the connectors.
Remove the mirror motor.
Fig. Removing connectors and screws holding mirror motor Removing connectors and screws holding mirror motor
Install or connect the following:
The electric motorThe electrical connectionsThe 3 screws that go behind the mirrorInstall the terminal pinsFold out the mirror mounting on the motorHook the mirror glass into the inner mountingPress the mirror glass into place.Place mirror in position in door
Fig. Reattaching mirror and electric motor connectors Reattaching mirror and electric motor connectors
Install or connect the following:
The nut attaching mirror assembly to door frameThe connectorThe door panelThe mirror inside cover trimThe negative battery cable
SECTION 501-09: Rear View Mirrors
2001 Explorer/Mountaineer Workshop Manual
REMOVAL AND INSTALLATION
Exterior Mirror Glass, 2001 model
Removal NOTE: Exterior mirror glass is serviceable only on vehicles built after July of 2001. NOTE: Passenger side exterior mirror shown, driver side exterior mirror similar. All mirrors
Position the glass in the full up position.
Locate the notch at the bottom of the exterior mirror glass.
Release the exterior mirror glass.
Insert a long flat-bladed screwdriver in the notch.
Push the screwdriver into the notch until the glass is released.
Position aside the exterior mirror glass.
Disconnect the electrical connectors.
Remove the exterior mirror glass (17K707) passenger side or (17T675) driver side.
Installation Heated mirrors
Connect the electrical connectors.
Position the exterior mirror glass on the exterior mirror motor.
Place a hand against the back of the exterior mirror housing and a hand flat against the exterior mirror glass. Press the glass in place until fully seated.
If only the glass is affected, it can be replaced by slipping a new mirror element into place and locking it. Some mirrors press in, others are locked with a screwdriver turning a little gear through a slot under the mirror.
If the mirror plastic body is broken, you can also replace that with a used assembly from Ebay or a junkyard. Replacement requires removal of the door panel, which is more difficult than replacing the mirror. Be sure you have re-connected all the wiring harnesses and checked the mirror operation if it is electrically adjusted before replacing the door panel. Replacement assemblies range from $20-$70 on Ebay. Glass only is much less.