Technical Service Bulletins

GM codes making you crazy? Try a new MDI cable

Order Reprints
GM codes making you crazy? Try a new MDI cable

This TSB applies to 2010-2012 Buick LaCrosse, 2010-2012 Cadillac SRX, 2010-2012 Chevy Camaro and Equinox, 2010-2012 GMC Terrain, 2011-2012 Buick Regal, 2011-2012 Chevy Camaro convertible and 2011-2012 Chevy Cruze and Volt.

Owners of any of the listed vehicles may comment on a Service Stability/Traction message and, if equipped with a 2.4L engine with electric steering, a Service Steering message.

During diagnosis, the technician may find a DTC C0710 with symptom 71. The C0710/71 also can be found in the PSCM (electrical power steering module).

Condition 1: When servicing the SAS (steering angle sensor) using GDS a technician may have difficulties in learning the SAS using GDS. The display screen may just continue to read waiting or may display an error message.

Condition 2: Upon rechecking for codes, the technician may find one or more DTCs (U0074, U0077, U180D, U0293, U0126, U0125, C0186 and/or C0196. These DTCs will not clear.


  1. For learning SAS, check for diagnostic package updates for GDS. Think of this just like the Tech 2 versions needing periodic updates.
  2. Upon checking for codes, you may find the afore-mentioned U and C codes are set, and will not clear after diagnosing the chassis bus, and the cause of the fault is not found. TAC has been involved with a few TAC cases and found the cause to be a MDI cable-to-DLC issue. Try a different MDI cable and perform the SAS learn following the published service information and clear the communication codes.

Related Articles

GM MDI cable issue

Try Battery Cable Reset

GM wet codes

You must login or register in order to post a comment.