1998 Oldsmobile Cutlass BaseFACTORY OEM SERVICE PROCEDURE

BFC DTC Definitions

BFC DTC DEFINITIONS (1)

Code No. Circuit Affected
B1000 Internal BFC Fault Detected
B1001 Vehicle Option Configuration Error
B1369 (2) Ignition 0 Fault
B1374 (3) Ignition 1 Fault (With Engine Running)
B1379 (4) Ignition 3 Fault
B1487 Generator "L" Terminal Low
B1488 Generator "L" Terminal High
B1492 Generator "F" Terminal Low
B1493 Generator "F" Terminal High
B2532 Front Foglight Relay Output Short To Ground/Open
B2533 Front Foglight Relay Output Short To Battery
B2558 Interior Light Control Output Short To Battery
B2575 ALC Headlight System Fault
B2577 ALC Headlight Relay Output Short To Ground/Open
B2578 ALC Headlight Relay Output Short To Battery
B2585 ALC Parking Light System Fault
B2587 ALC Parking Light Relay Output Short To Ground/Open
B2588 ALC Parking Light Relay Output Short To Battery
B2600 DRL Error
B2602 DRL Relay Output Short To Ground/Open
B2603 DRL Relay Output Short To Battery
B2647 Ambient Light Sensor Short To Ground/Open
B2648 Ambient Light Sensor Short To Battery
B2947 (5) PASSLOCK(R) Power Output Short To Ground
B2948 (5) PASSLOCK(R) Power Output Short To Battery
B2957 (5) PASSLOCK(R) Signal Data Short To Ground
B2958 (5) PASSLOCK(R) Signal Data Open/Short To Battery
B2960 (5) PASSLOCK(R) Cylinder Data Incorrect
B2965 (6) Key-In-Ignition Fault
B3031 (5) BFC In Learn Mode (Current Code Only)
B3033 (5) Tamper Mode Enabled
P0462  Fuel Level Sensor Signal Short To Ground
P0463  Fuel Level Sensor Signal Open/Short To Battery
U1000 Loss Of Class 2 Serial Data Fault (General)
U1016 PCM Class 2 Serial Data State Of Health Fault
U1040 EBCM Class 2 Serial Data State Of Health Fault
U2000 Invalid BFC Transmitted SPI Data
U2001 Invalid Instrument Cluster Transmitted SPI Data
U2002 SPI Data Input Low
U2003 SPI Data Input High
U2004 SPI Data Output Low
U2005 SPI Data Output High
U2006 SPI Clock Output Low
U2007 SPI Clock Output High
(1) Perform appropriate test under DIAGNOSTIC TESTS  .
(2) This code sets when Ignition 0 input is not active and Ignition 1 is active for 20 seconds.
(3) This code sets when Ignition 1 input is not active, Ignition 3 is active for 20 seconds, and engine is running for 20 seconds.
(4) This code sets when Ignition 3 input is not active and Ignition 1 is active for 20 seconds.
(5) See ANTI-THEFT SYSTEM article.
(6) This code sets when key-in input is not active and Ignition 0 is active for 20 seconds.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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