.... I have purchased an instrument loom for an 07 which has some wire colours that do not match my diagram [yellow and Grey]
Unfortunately the manual and the main wiring schematic does NOT show the wiring for the instrument sub-harness, only up to the connector on the main harness.
The colours do not all transpose directly the same from the main harness to the sub-harness.*
The Yellow corresponds to the Yellow/White on pin 15 the Main Harness which is the Coolant Temp signal from the ECU
(It might even be Yellow/White on the speedo harness - it's very difficult to discern if is a white stripe on there, but I think it probably is)
The Grey corresponds to black on pin 6 which is for the Alarm Indicator Lamp (the other signal for which is the Orange one on pin 5)
*One of these days I will make an interconnect diagram for the Speedo Sub-Harness (I might have said this before
)
The colours that do NOT transpose directly are
Pin 2 - Ignition Power - Green/Red on Main harness, Brown on Sub-Harness
Pin 5 - Alarm - Black on Main, Orange on Sub
Pin 6 - Alarm - Black on Main. Grey on Sub
Pin 3 - Illumination - Red/Blue on Main - NONE on sub (strange one!!!)
Otherwise