2016-2017 Mazda 6 Multi-Function Switch GMJ666CM0A
Specifications
OEM number
GMJ666CM0A
Donor year
2016
Body style
Sedan
Fuel
Gas
Engine size
2.5 L
Engine type
2.5L I-4 DI, DOHC, VVT, 184HP
Transmission
Automatic
Drivetrain
FWD
Suspension
Coil
Trim
GS
Donor mileage
220000
Paint code
41W
Donor VIN
JM1GL1V50H1100606
About this part
Also known as
Combination Switch
Turn Signal Switch
Wiper Switch
Headlight Switch
Stalk Switch
Steering Column Switch
What this part does
The Multi-Function Switch is a steering column-mounted electrical cluster that allows the driver to operate essential exterior visibility systems. It acts as the primary control interface, directing the body control module to activate the turn signals, high beams, windshield wipers, and washer fluid pumps. Inside the housing, mechanical contacts and sliding tracks route power based on the physical position of the stalks. When this assembly fails due to worn internal contacts or degraded dielectric grease, you may experience unresponsive turn indicators, turn signals that fail to cancel, continuous or inoperative wiper function, or an inability to activate the headlights.
Fits these vehicles
| Make | Model | Years | Engine |
|---|---|---|---|
| Mazda | 6 | 2016-2017 | 2.5L |
OEM and interchange numbers
GMJ666CM0A
GMJ6-66-CM0A
Before you order
Verify your exact OEM part number before ordering, as Mazda produces multiple variations of this switch for the 6 based on specific factory options. You must confirm that your original unit matches the auto-wiper and auto-headlight stalk positions of the switch from the vehicle it came from, otherwise those features will not function correctly.
Installation requires the removal of the steering wheel and the driver airbag module. Disconnect the vehicle battery and allow the SRS system capacitors to fully discharge before beginning work to ensure safe removal and prevent accidental deployment. No module programming is required once the physical hardware is installed.
