911 Carrera Targa F6-3600cc 3.6L SOHC (1996)
Oxygen Sensor: Technical Service Bulletins
Electronic Control Module - Software Programming Error
Group
2
Number
9601
Model
6 Cyl
Part Identifier
2470
January 9, 1996
Subject:
Software Programming Error in ECM Affecting Fault Analysis
ATTENTION:
Service Manager / Service Technician
Models Affected:
911 Carrera Model Year 1996
911 Turbo Model Year 1996
General Information:
A programming error in the ECM has resulted in the omission of two areas of mode 2 Freeze Frame (instantaneous operational condition) data:
-
Regulation factor for Oxygen sensor regulation, Bank 2 (cyl.4-6).
-
Adaption value for the Oxygen sensor regulation, Bank 2 (cyl.4-6).
This information cannot be read out with a scan tool and the values in the control unit memory cannot be retrieved.
The menu text:
O2S.- Integr. B2..... % and
O2S.- Adapt. B2....... %
are not shown by the scan tool (see the OBD II workshop manual page B-21).
This software error is in vehicles produced before the following VIN numbers:
99 1 TS 32 0192
911 Carrera Coupe
99 1 TS 34 0161
911 Carrera Cabrio
99 1 TS 37 5557
911 Turbo
ECM's with corrected software are installed in production as of August 31, 1995.