Engine Controls - False DTC U2108 Set
Bulletin No.: 05-05-25-001Date: January 04, 2005
INFORMATION
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(R).
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.
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