What is MY16 TDI Fault Code - "Cooling fan for housing" ?

[Lucas_R]

Have you found a solution for this fault? I am getting the same one

I doubt it unfortunately. This was a classic case of someone joining the forum simply to get advice on an issue and then they disappeared once the issue was fixed. So they provided no solution/context to the issue once it was sorted and they were never to be seen again. The last post on this thread was in 2015 so I doubt you will get a reply from the original member, and quite unlikely they even own the car anymore.

[DV52]

Have you found a solution for this fault? I am getting the same one

I'm always puzzled when folk allege that they have the same fault as someone else -because a fault has so many different aspects that it's difficult to have two unconnected error-messages with exactly the same characteristics!

hmm......this ain't a particularly difficult error-message to diagnose - clearly as I said in my response to OP, the problem is almost certainty with the internal fan inside the 5F module (which is the MIB - the black box inside the glove-box).

This is where the fan is located in the MIB:


So, to pursue discussion further - you need to provide more words:

1. what part of OP's fault is the same - is your fault status intermittent, or static?
2. What diagnostic device are you using- post up a copy of the error-message?
3. Have you tried testing the operation of the internal fan with your diagnostic device?
4. If the internal fan needs replacing - will you do this yourself, or do you intend to throw money at a professional?

Don

[ak77]

This error message is related to a cooling fan issue in a vehicle, specifically pointing to an electrical failure. Here's a breakdown of the details:

Fault Code Explanation:
Fault Code: 1559 - Cooling Fan for Housing

This indicates a problem with the cooling fan that is responsible for cooling a specific housing (likely an ECU, battery pack, or another component needing cooling).
B126B 01 [008] - Electrical Failure

B126B: This code is related to a cooling fan circuit failure.
01: The sub-code suggests an "Electrical Failure," which could mean a wiring issue, a bad connection, or a faulty fan motor.
[008]: This might indicate the severity or category of the fault.
Additional Details:
Intermittent - Confirmed - Tested Since Memory Clear

The issue has occurred intermittently but has been confirmed through diagnostics and has been tested since the last time the memory was cleared.
Freeze Frame Data:

Fault Status: 00000001 → The fault is currently present in the system.
Fault Priority: 6 → This priority level suggests it is not critical but should be checked.
Fault Frequency: 18 → The issue has occurred 18 times.
Reset Counter: 48 → The fault has been cleared 48 times since it was first detected.
Mileage: 8 km → The fault was first recorded when the vehicle had 8 km on the odometer.
Date: 2015.09.24 → The date of the last occurrence.
Time: 00:03:39 → The timestamp of the last occurrence.
Possible Causes:
Faulty Cooling Fan – The motor may be failing or have an internal short circuit.
Wiring Issues – Damaged or corroded wiring or loose connectors in the cooling fan circuit.
Blown Fuse or Relay – A blown fuse or a malfunctioning relay could prevent the fan from operating properly.
ECU or Control Module Issue – The module controlling the fan may not be functioning correctly.
Power Supply Issue – Voltage irregularities could be affecting fan operation.
Recommended Actions:
✔️ Check the cooling fan operation – Manually test if the fan spins freely and listen for unusual noises.
✔️ Inspect wiring and connectors – Look for any loose, broken, or corroded wires around the fan.
✔️ Test the fan motor – Apply direct power to see if it runs properly.
✔️ Check fuses and relays – Ensure no blown fuses or faulty relays are preventing operation.
✔️ Scan for other related codes – There may be additional fault codes pointing to a root cause.

[ak77]

What? Are you moderating Lucas?