Hi! I'm new here but been reading the forum for some says -- so let me start by thanking everyone for your posts. I apologize for my English as I'm not a native speaker.
My 2007 V70 started showing "rear hatch open" messages and blowing rear wiper fuses. I found a worn tailgate wiring harness at the hinge, as described in several topics. Many of the wires were completely cut and the remainder worn bare. After thoroughly exposing each, cutting, soldering and re-isolating, and moving the harness a bit upwards I'm quite certain that the harness is fine now. I was fortunate to have no problems finding the correct pairs to be soldered. Rear wiper and rear hatch detection are now fine. One issue remains, though: The rear license plate bulbs do not illuminate.
The bulbs are ok, but the voltage is too low at 9.2V. I revisited the harness to find the soldered wires and isolation fine. Neither is there any resistance from REM connector to bulb connectors (10/3). Voltage from the REM pins (F:5 and F:10) is also similarly low, 9.2V, which excludes the wiring harness, I guess.
Any thoughts how to continue troubleshooting? Is there any serviceable parts in REM?
2007 V70 License plate light low voltage
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