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Head Unit Wiring Diagram

Find every pin, plug and wire colour for the PVS 9 inch MK4 head unit in the Toyota 70 Series LandCruiser. You get two views of the same diagram: one drawn in wire colours, one anchored on the board pin numbers. The 16 pin main plug follows the ISO and DIN aftermarket standard, so you get the power and speaker colours Kenwood, Pioneer, Alpine and Sony all use.

Download the PDF The diagram scrolls sideways on your phone.

PVS Automotive MK4 Wiring Diagram, wire colours Toyota 70 Series LandCruiser · 9 inch MK4 · every pin across seven connectors 16-PIN MAIN PLUG16 way, one connectorFactory Toyota Power Plug2BATTYellowPermanent +12V Battery3ACCRed+12V Accessory, Switched1GNDBlackGround4ILLOrangeIllumination, Park Light Sense8ANT+12VBlueAutomatic Power AntennaFront Speakers15OUT_FL+WhiteFront Left, Positive13OUT_FL-White / BlackFront Left, Negative11OUT_FR+GreyFront Right, Positive9OUT_FR-Grey / BlackFront Right, NegativeRear Speakers12OUT_RL+GreenRear Left, Positive10OUT_RL-Green / BlackRear Left, Negative14OUT_RR+PurpleRear Right, Positive16OUT_RR-Purple / BlackRear Right, NegativeConnector 3, Steering Wheel Controls and Factory Camera7KEY1Orange / BlackSteering Wheel Key 16KEY2OrangeSteering Wheel Key 25BACK_CONPinkReverse DetectThe reverse sense arrives here on a factory camera install, which is why no trigger wire is needed.One plug. It carries power, both speaker pairs, the steering wheel lines and the reverse sense. Plug and play into the factory loom, nothing here is cut or joined.HARNESS A20 wayFront Pre-Out, AUX and MicrophoneA4RCA_FL White plugFront Left Pre-OutA6RCA_FR Red plugFront Right Pre-OutA16SUB Green plugSubwoofer Output, a Pair of Green RCAsA1AMP_POWBlueExternal Amplifier ControlA5AUXIN_L White plugAUX Audio In, LeftA3AUXIN_R Red plugAUX Audio In, RightA20MIC+ BlackMicrophone Positive. Shares One 3.5mm Socket With A19.A19MIC- BlackMicrophone Negative. Shares One 3.5mm Socket With A20.Video InputA18AUX_IN Yellow plugAUX Video In. The Yellow RCA on Harness A.External SIM CardA15VDD_SIM0 BlackSIM SupplyA7SIM0_DA BlackSIM DataA11SIM0_CLK BlackSIM ClockA9SIM0_DET BlackSIM DetectA13SIM0_RST BlackSIM ResetA moulded card holder on the harness, so no loose wire carries these.GroundsA2GNDBlackGround, Covers RCA_FL and RCA_FRA8GNDBlackGround, Covers AUXIN L and RA10GNDBlackGround, External SIMA12GNDBlackGround, Covers CVBS IN2AUX_IN video is mutually exclusive with the 360 system. A14 DSM_IN and A17 AR_IN are not implemented on this unit.HARNESS C8 wayRear Pre-Out, Centre Channel and CAN BoxC3ASL_OUT White plugRear Left Pre-OutC4ASR_OUT Red plugRear Right Pre-OutC2CENTER-OUT Green plug5.1 Centre Channel OutC6SPDIF_OUTBrownCoaxial Digital OutC7CAN_TXDOrangeCAN to Protocol Box, TransmitC8CAN_RXDWhiteCAN From Protocol Box, ReceiveGround and UnusedC1GNDBlackGroundC5NCNot connectedNot ConnectedC6 is the coaxial digital output, separate from the optical output on the board.HARNESS F10 wayReverse Camera and AccessoriesF6CAM_CVBS Yellow plugReverse Camera Video InF7CAM12_OUTPinkReverse Camera 12V Power OutF8CVBS_GNDBlackReverse Camera Video GroundF9PARK_INBrownHandbrake DetectF5IRDark navy blueInfrared Remote Receiver. Terminated Short.F1RXD_BOXWhiteExpansion Box, ReceiveF3TXD_BOXWhiteExpansion Box, TransmitGround and Production PinsF4GNDBlackGroundF10DOWN_LOADProduction use onlyEmergency Flash Pin. Production Use Only.F10 is a factory flash pin. Production use only, never connected on an install.HARNESS B12 way360 Degree Camera SystemB4F_CAM_VID Yellow plugFront Camera InB8REAR_CAM_VID Yellow plugRear Camera InB10L_CAM_VID Yellow plugLeft Camera InB6R_CAM_VID Yellow plugRight Camera InB1L_TURNPinkLeft Turn DetectB2R_TURNBlackRight Turn DetectB11360_5VRedCamera 5V SupplyB12360_5VRedCamera 5V Supply, Second PinGroundsB3GNDBlackGroundB5GNDBlackGroundB7GNDBlackGroundB9GNDBlackGroundNot fitted on a standard install.HARNESS D4 wayUSB Port 0D1USB 5V BlackUSB SupplyD2USB_DP0 BlackUSB0 Data Plus, OTG CapableD4USB_DN0 BlackUSB0 Data Minus, OTG CapableD3GND BlackGroundUSB0. This one supports OTG.HARNESS E6 wayUSB Ports 1 and 2E1USB 5V BlackUSB SupplyE2USB_DP1 BlackUSB1 Data Plus, CarPlay and Android AutoE4USB_DN1 BlackUSB1 Data MinusE6USB_DP2 BlackUSB2 Data Plus, Media and AccessoriesE5USB_DN2 BlackUSB2 Data MinusE3GND BlackGroundCarries both USB1 and USB2. RCA socket, female 3.5mm socket, female USB-A socket, female SIM card holderBare wire or crimp terminalColour not confirmed
Wire colours. An unconfirmed colour draws as a grey dashed line, and you won't find any here.

Reading the Diagram

Reading the Diagram

The left column is the connector and its pin. The right column is where that pin goes, drawn as the connector you actually hold at the far end. Every connector you'll handle on this loom is female. An RCA lead is black jacketed and only the plug is coloured, so those runs draw black with a coloured plug on the end.

The 16 Pin Main Plug
Yellow, permanent batteryRed, switched accessoryBlack, earthOrange, illuminationBlue, power antenna
Speaker Pairs
White, front leftGrey, front rightGreen, rear leftPurple, rear rightNegative is its positive with a black stripe
The Reverse Trigger
Pink, pin 5 on the main plug

If you've got a factory Toyota camera, there's no trigger wire to connect, because reverse already arrives on Connector 3. Harness F carries the camera video, its 12V supply and the video ground, never the trigger.

Steering Wheel Controls
Orange, pin 6Orange with black stripe, pin 7

You keep the factory clock spring.

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