Unknown fault code (ABS 5.7)

[Norway996c4]

Hi,

This is one of my first posts, but i have been reading the board for a long time with great interest.

Car; 2001 996 C4 Coupe Tiptronic RoW lhd

Problem; ABS / PSM lights come on now and then, but can be reset by turning the ignition off / on.

I have read up on this problem with the ABS / PSM lights and can confirm that i have a clean original air filter and that the air flow meter is new (less than 1000Km)

So while reading / checking the fault codes with my Durametric tester i got the following info, (this was the only fault i got)

9X6 ABS 5.7 Selected

About to get fault codes

moduleType = ABS57

dtcCount = 1

Fault Number: 4440

Description: Unknown fault code: 4440

Repair Infomation: Unknown fault code

Checked here on the board for "fault code: 4440" and variations of, but could not find anything, so i contacted Durametric here is the reply

Hi Mark,

Fault code 4440 shows up as unknown fault code, because it is missing in the Porsche documentation for ABS 5.7 see attached. This issues has come up before and I have been told that this fault code means “Steering Angle Sensor” but I have had no way to validate this with the documentation.

Best Regards,

Durametric Software

So my question is, can anyone confirm this (i have no reason to doubt this), or does anyone have any other info that might help me solve this problem.

Thanks for your time

Mark

[Loren]

ABS Fault 4440 -- Steering-angle sensor

- The PSM function is switched off.

- The ABS function is switched off

- The ESD function is switched off

- The ASR function is switched off

"If the fault codes 4400 Transverse acceleration sensor, 4420 Rate of turn sensor and 4440 Steering-angle sensor are displayed together, there may be an open circuit in the circuit to control module terminal 39."

If you want the full diagnostic procedure - send me a PM.

[Norway996c4]

ABS Fault 4440 -- Steering-angle sensor

- The PSM function is switched off.

- The ABS function is switched off

- The ESD function is switched off

- The ASR function is switched off

"If the fault codes 4400 Transverse acceleration sensor, 4420 Rate of turn sensor and 4440 Steering-angle sensor are displayed together, there may be an open circuit in the circuit to control module terminal 39."

If you want the full diagnostic procedure - send me a PM.

Many thanks for the rapid response Loren, PM sent

Mark

[bradmay]

ABS Fault 4440 -- Steering-angle sensor

- The PSM function is switched off.

- The ABS function is switched off

- The ESD function is switched off

- The ASR function is switched off

"If the fault codes 4400 Transverse acceleration sensor, 4420 Rate of turn sensor and 4440 Steering-angle sensor are displayed together, there may be an open circuit in the circuit to control module terminal 39."

If you want the full diagnostic procedure - send me a PM.

Many thanks for the rapid response Loren, PM sent

Mark

I'm generating PSM/ABS errors on about half of my cold starts. Restarting appears to correct the problem. I've checked the readout with durametric software and it's reading fault code 4440, steering angle sensor. One solution is to take it the dealer for re-alignment and sensor calibration. Any other suggestions?

2002 911/996 C4