Rear Hatch Problem

[C543]

Neither the FOB or the dash switch will open the rear hatch. I grounded the switch lines 30 and 87 for Micro Relay (39) on the fuse block and the hatch opens with the actuators. Fuse and relay are both good. Does anyone have a wiring diagram they could forward. Any help would be greatly appreciated.

[C543]

Sorry, forgot to mention this is a 2003 50th automatic.

[c4c5specialist]

HI there,

The control for this function is all out of the body control module.

The switch tells the BCM to turn on the relay, creating the opening of the rear hatch.

Honestly, the next step is to scan the BCM data to see if its getting the request to open the hatch.

Allthebest, Paul