| Subject: | Information on a Falsely Set DTC U2108 in Engine Control Module (ECM) |
| Models: | 2005 Chevrolet Cobalt |
| 2005 Pontiac Pursuit (Canada Only) |
| with Non-ABS Brake System (RPO J41) |
| Built Prior to February, 2005 |
Technicians may observe DTC U2108 (ECM Lost Communications With ABS/TCS Control System), current or in history, stored in the ECM when the vehicle is connected to the Tech 2®.
This DTC is associated with ABS equipped vehicles. Because the above vehicle is not equipped with ABS, this may cause confusion.
The ECM may falsely set a DTC U2108 in cars not equipped with ABS due to a software condition. A DTC U2108 will NOT illuminate a SES/MIL light. A code clear will only momentarily clear this DTC and will return to a current state almost immediately. No
repairs to the vehicle are necessary as a result of a DTC U2108. DO NOT REPLACE THE BCM OR ECM.
If the SES/MIL light is illuminated with a DTC U2108 present, look for additional DTCs causing the condition.
