Have codes, looking for ground
Thread Starter
Melting Slicks
Joined: Feb 2006
Posts: 3,191
Likes: 43
From: Scottsdale Az
Have codes, looking for ground
My wife's C5 is showing B0332, B0337, B0361, B0365 which are all HVAC and say there's a short to ground. I'm not sure where this ground is or where to go from here. I appreciate any help.
Tech Contributor
Joined: Jan 2007
Posts: 19,401
Likes: 1,143
From: Dyer, IN
1) A seriously damaged control head connector harness(not likely, and all four signal wires would have to be shorted to ground)
2) An internal short in the control head itself.
Thread Starter
Melting Slicks
Joined: Feb 2006
Posts: 3,191
Likes: 43
From: Scottsdale Az
The codes all suggest a "short to ground", which could be anything metal tied to the chassis, or any wire connected to ground. The inside and outside air temp sensor, and the LH and RH actuators all use a 5 volt reference voltage from the control head itself. Each of the aforementioned, have individual circuits, so I believe you have two possibilities:
1) A seriously damaged control head connector harness(not likely, and all four signal wires would have to be shorted to ground)
2) An internal short in the control head itself.
1) A seriously damaged control head connector harness(not likely, and all four signal wires would have to be shorted to ground)
2) An internal short in the control head itself.
Tech Contributor
Joined: Jan 2007
Posts: 19,401
Likes: 1,143
From: Dyer, IN
Thread Starter
Melting Slicks
Joined: Feb 2006
Posts: 3,191
Likes: 43
From: Scottsdale Az
I erased all codes and the restarted the car and it set these right away.
