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vwtech0405
vwtech0405, VW Technician
Category: VW
Satisfied Customers: 10617
Experience:  VW Master Technician VW Certified
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2009 JETTA, CEL LIGHT,RED BRAKE LIGHT FLASHES,TRACTION LIGHT

Customer Question

2009 JETTA, CEL LIGHT,RED BRAKE LIGHT FLASHES,TRACTION LIGHT IS ON,ABS LIGHT ON,NO COMMUNICATION WITH ABS MODULE,CODES IN PCM 49441,53271,50197,SPEEDO INOP AND SOME TIMES BOUNCES AT IDLE FROM 0 MPH TO 25 MPH SITTING STILL
Submitted: 10 months ago.
Category: VW
Expert:  vwtech0405 replied 10 months ago.

If you have no communication at abs control module have you checked to see if you have power and ground at the abs control module ?? the reason the check engine light has triggered is because you have lost can bus communication with the abs module.

Customer: replied 10 months ago.
I don't have wiring schematics is there a common prob to look for or a fuse
Customer: replied 10 months ago.
the speedo goes off abs,cause iterm its moves,loose connection or something
Expert:  vwtech0405 replied 10 months ago.

Yes it uses the abs sensors determine speed , your issue is not very common we have seen abs control modules fail and cause this issue which this will need a new abs control module replaced and coded and the abs sensors like brake pressure sensor and g85 steering angle sensor basic settings reset and calibrated after replacement which require a vw capable scan tool . Since there are so many fuses that are tight in the can bus system that can cause a issue i recommend you check them all with a test light , one other thing to check is remove the connector on the abs control module and looked for backed out pins and corrosion in the wiring . I hope this helps .

Please dont forget to provide positive feedback for the help provided we as experts rely on this feedback thank you

Customer: replied 10 months ago.
unplugged abs module and ckd all clean ,now communicates and has 2 codes 01276 abs hyd pump v64 malfunction interm and code 00538 reference voltage electrical prob in circuit, and red brake light ,abs light,and traction back on
Expert:  vwtech0405 replied 10 months ago.

Ok you have a failed abs control module with pump make sure you replace it as a complete unit with both the module and the pump new and it will need to be coded and the abs sensor basic settings reset common issue . I hope this has helped .

Please dont forget to provide positive feedback for the help provided we as experts rely on this thank you

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