E-Brake light, and one directional arrow didn't work. E-Brake problem was sticky switch. Directional arrow light needed cleaning and bending the tabs on the printed circuit board under the dash. Oil warning light works fine.

I cannot get the coolant temperature light to go on. I believe coolant temperature is the green wire in the headlight harness. Grounding it should turn on the light, but it doesn't. I can see it goes through the firewall plug, then under the dash. Anyone know the color of the wire as it goes from the firewall to the PC board? The diagrams I have do not show this.

Also, how is the harness routed to the alternator and the temperature sending unit on the driver's side of the engine?