Digital Instrument Cluster - Circuit Modification

NO.: 87-I-27

DATE: Feb. '87

GROUP: 8
SUBJECT: 1987 "C" CAR DIGITAL CLUSTERS


A running change was implemented on December 15, 1986 to 1987 "C" car digital clusters. Internal cluster circuitry was modified to increase yield and improve reliability without altering fit or function. Also, two observable changes were made to enhance appearance.

1. Odometer and trip odometer leading zeros were eliminated except in the two least significant digits as indicated below.

Mileage (MI/KM) Odometer Display Trip Odometer Display

0 -----00 ---0.0
1/2 -----00 ---0.5
5-1/2 -----05 ---5.5
12 -----12 --12.0
115 ----115 -115.0

In the table above "-" indicates a blank space.

2. The "E/M" (English/Metric) and "SET" buttons are slightly larger and use improved appliques.

To prevent owner dissatisfaction, order exchange units to match the core cluster. Part numbers for carryover clusters and modified clusters are listed below. Replacement clusters must be ordered as exchange units through an AC Delco Service Center as instructed in DSIB 87-I-1B.

Part Number

25081202 With leading odometer zeros
25085449 Without leading odometer zeros

For warranty purposes, use Labor Operation N4180 at .6 hours.