Note On Intermittents

WARNING: This page is about a different car, the 1992 Cadillac Fleetwood and 1992 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

Following conditions will result in intermittent BCM Code F32 and/or PCM Code E47:

Momentary open or short in circuit No. 526 resulting in both Code F32 and E47.
Momentary open or short in circuit No. 491 resulting in Code E47 only.
Momentary loss of ignition (circuit No. 50), battery (circuit No. 840) or ground (circuit No. 751A) to BCM resulting in Code E47 and intermittent display panel operation.
Momentary loss of ignition (circuit No. 439) to PCM resulting in Code F32 and intermittent engine operation.
Momentary loss of battery (circuit No. 480) or ground (circuit No. 450) to PCM resulting in Codes F32, E52 and intermittent engine operation.
Momentary BCM PROM problem resulting in Codes E47, F51 and intermittent display of "-151" on ECCP.

Fig 1: BCM Code F32, Schematic, BCM-to-PCM Data Problem

Courtesy of GENERAL MOTORS CORP.

Fig 2: BCM Code F32, Flow Chart, BCM-to-PCM Data Problem

Courtesy of GENERAL MOTORS CORP.

Fig 3: BCM Code F32