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Old 05-23-2015, 03:55 PM
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Location: Murrieta, CA
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jdstrickland is on a distinguished road
Auxiliary Heater and Rear Left & Right Side Light

I bought a BMW Scanner, and my car has two errors that I do not understand.

Heater and Automatic Conditioner Control
This section has an error for the Auxiliary Water Pump. What is this? I replaced the thermostat last weekend, should I have replaced the water pump also? I've never had an aux. water pump before. Whatever it means, it's an active fault that does not clear.


Light Check Module
I have two errors here, Rear Left Side Light, and Rear Right Side Light. The lights are all on. The top light is the turn indicator, then the tail lamp, then the tail/brake lamp (dual filament). The OBC is not telling me of a lamp fault. Turns out that these messages have been turned off in the BC.

I've played with this long enough that my battery is dead...
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Old 05-24-2015, 04:01 PM
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Yes, the lights all appear to be working normally. I found where I changed the coding and turned this message on. I turned it off again.

So, the aux heater is a small electric pump. If there is an error, then there is no electricity or the motor is shot. I will find it on the left side somewhere in the engine bay. It's not leaking, and it's also not one of those critical-need items, so I may simply ignore it. RealOEM will help me find it, and I can decide from there what to do. Thanks.
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