Trailer Wiring Harness for a 1999 Pontiac Bonneville
Question:
Is there an in-line wiring harness available for the 99 Pontiac Bonneville? Or are all the ones offered a cut and splice design?
asked by: Charles B
Expert Reply:
The only wiring harness we carry for the 1999 Pontiac Bonneville is the Upgraded Circuit Protected Taillight Converter Hardwire Kit, # 119175KIT. A T-one style connector is not available.
Installation of this kit is still very simple. Using the included circuit tester, you will test the wires behind each tail light and find the ones for brake lights, running lights, and left turn signal on the driver side, and right turn on the passenger side.
once you have found the correct wires they will connect to the converter as follows:
White = ground to metal surface
Yellow = left turn
Brown = running lights
Red = brake light
Green = right turn
I have included a link to a video that shows a typical installation.
