Hi all, I’ve got a 2014 D4 and it came with factory rear a/c option.
I recently noticed (only use rear a/c when kids are in the back) that the control cluster in the ceiling that activates the rear a/c no longer illuminates or functions. And yes - I’ve activated the rear option on the front dash
I’ve checked all fuses, and even LR had a look when the serviced the car - though they said they wanted to remove the headlining to haven a more detailed inspection. I opted to try myself to save $$.
I’ve bridged the relevant relay on the dash and tried for power at the rear blower wires. When I did this, if I earthed the blower power (red wire), I got 14v, but using the red/white in the connector, I got a weird (variable/decreasing voltage - <10v).
Am sure the fuses are good and the relay.
I’m not sure if the switching module in the ceiling runs any power or is driven by a canbus, but there doesn’t seem to be any power running to any if those wires that connect into the 3 socket controlling the three round dials. Does anyone know if there is power and which colour wires I could check?
I’ve heard/read that the fuse block may have poor soldering for the rear a/c fuses. Not sure how to check that.
I’d be thrilled to get any guidance … or hear if anyone has fixed a similar problem.
I recently noticed (only use rear a/c when kids are in the back) that the control cluster in the ceiling that activates the rear a/c no longer illuminates or functions. And yes - I’ve activated the rear option on the front dash
I’ve checked all fuses, and even LR had a look when the serviced the car - though they said they wanted to remove the headlining to haven a more detailed inspection. I opted to try myself to save $$.
I’ve bridged the relevant relay on the dash and tried for power at the rear blower wires. When I did this, if I earthed the blower power (red wire), I got 14v, but using the red/white in the connector, I got a weird (variable/decreasing voltage - <10v).
Am sure the fuses are good and the relay.
I’m not sure if the switching module in the ceiling runs any power or is driven by a canbus, but there doesn’t seem to be any power running to any if those wires that connect into the 3 socket controlling the three round dials. Does anyone know if there is power and which colour wires I could check?
I’ve heard/read that the fuse block may have poor soldering for the rear a/c fuses. Not sure how to check that.
I’d be thrilled to get any guidance … or hear if anyone has fixed a similar problem.