Brake Assist (BAS) (DTC Memory [12])
Brake Assist (BAS)
Model 129, 140, 170 (as of MY 1999)
Model 202, 208, 210 (without ESP) as of MY 1998
Diagnostic Trouble Code (DTC) Memory [12]
Preparation for DTC Readout
1. Review [21], [22], [23]
2. Connect Hand-Held Tester (HHT) to data link connector (X11/4) according to connection diagram (see section 0).
3. Read out DTC memory and actual values for BAS system.
4. Read out DTC memory for traction systems (ABS, ASR, ESP).
5. Perform Function Test via the HHT.
6. Ignition: ON
DTC readout is not possible using an impulse counter scan tool.
In case of complaint, and no fault is present in system, perform [23] in its entirety.
Test Equipment:
Special Tools:
