For 1990-2009 cars

# DAMAGED ECM/ CODE 20 SET INCORRECT FUEL PUMP RELAY P/N

#### VEHICLES AFFECTED: 1981 DEVILLE, ELDORADO AND SEVILLE 1981-84 LIMOUSINES

Two types of relays were packaged under P/N 1626239 by GM Parts. The correct relay will have the P/N 1626239 and the electrical schematic (Figure 1) moulded into the relay cover. The incorrect relay will have P/N 12033768 on a paper label with P/N 1623924 and the electrical schematic (Figure 2) moulded into the relay cover. Installing the incorrect relay in 1981-84 vehicles equipped with 6.0 liter engines (V8-6-4) as a fuel pump relay will immediately damage the ECM and set a code 20.

The relay cover must be inspected for the correct part number before installing it for use as a fuel pump relay in 1981-1934 vehicles equipped with 6.0 liter engines (V8-6-4).

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