Bulletin #01-08-56-005, "SMU - Revised Theft Deterrent Diagnostic
Information", does not describe any specific problem, it's just a series of
updates to the service manual diagnostic instructions, there are about 8
other bulletins with similar service manual updates on this vehicle for
other sections of the manual.
Diagnosing this problem would probably involve reading any trouble codes out
of the body computer module and starting from there..
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from firstname.lastname@example.org
Do you have access to the following bulletins:
(i) 01-08-56-003: Security Lamp Illuminated on IP, Engine Stalls, No
Start, DTC B2960 (Security System Sensor Data Incorrect but Valid) Set
(Inspect and Repair Cause of DTC B2960); 1999-2001 Chevrolet and GMC
M/L Van Models (http://service.gm.com/gmtechlink/arcv_pdf/7_01_e.pdf )
(ii) 01-08-56-004A: replaces 01-08-56-004; Security Lamp Illuminated
on the IP, Engine Stalls, No Start, DTC B2960 (Security System Sensor
Data Incorrect but Valid) Set (Inspect and Repair Cause of DTC B2960);
1998-2001 Chevrolet and GMC C/K Pickup and Utility, 2001 Chevrolet and
GMC C/K 3500 HD Pickup, 1999-2000 Cadillac Escalade
(iii) 01-08-56-003A: SOME CUSTOMERS MAY COMMENT ON SECURYTY LAMP
ILLUMINATES WHILE DRIVING; THE ENGINE CRANKS BUT WILL NOT START AND
THE SECURITY LAMP IS FLASING; AND / OR THE ENGINE STARTS THEN STALLS
AND THE SECURITY LAMP IS FLASHING.
(http://www-odi.nhtsa.dot.gov/cars/problems/tsb/results.cfm for search
criteria 2001 GMC Safari)
These URL's appear to have very specific problem descriptions, but
nothing in the way of follow-up.
On Sun, 22 Jun 2003 19:50:28 GMT, "Robert Hancock"
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