Quote:
Originally Posted by monty77uk
Hi all,
Just bought my 2nd Boxster .. budget limited due to house renovations so I picked up a late 2003 986 3.2S with just shy of 140k miles on the clock.
History was plentiful and expensive and it is in generally very good condition so I took a punt.
I have the following issues:
ABS/Brake pad wear lights permanently lit
- Pads are fine, replaced all 4 sensors, still lit
- Durametric wont connect to ABS module
CEL .. this is new, only came on last night.
Found the following codes with Durametric:
Motronic 7.8
Current Fault Codes
--------------------------------------------------------------------------------
P0501
Factory Fault Code 120 - Vehicle speed
Open circuit
--------------------------------------------------------------------------------
P2096
Signal delay time for oxygen sensor ageing
Above limit
..the first one, could that be related to the ABS?
2nd one - knackered post-cat o2?
Thanks!
Adam
|
Most of this can be related to the P0501 code; that indicates the car has no wheel speed signal, which it gets from the left rear wheel speed sensor. Could be the sensor, the sensor could be jammed up with brake dust (common) a break in the wiring harness, or the AMS module. It concerns me that the Durametric cannot see the ABS module.
The left rear wheel speed sensor can be tested with a multimeter, look for 1.6 to 1.8K ohms across pins 1 & 2 at the sensor. If the Durametric could see the ABS module, you could read the sensor values using it, but that is obviously not possible.
You can also look for a shop with a Baum iScan tool which often can read the ABS system when a Durametric cannot.