Engine Controls - Revised DTC P0441, P1654 & PCM Run A/C

File In Section: 6E - Engine Fuel & Emission

Bulletin No.: 71-65-46

Date: June, 1997

SERVICE MANUAL UPDATE

Subject:
Section 6E - Engine Controls Revised DTC P0441 EVAP System No Flow During Purge, DTC P1654 A/C Relay Control Circuit and PCM Controlled Air Conditioning

Model:
1997 Buick Park Avenue
with 3.8L Engine (VINs K, 1 - RPOs L36, L67)

This bulletin is being issued to inform technicians of a revision to the P0441 EVAP System No Flow During Purge. The DTC table was revised. Also the graphic in the DTC P1654 A/C Relay Control Circuit and the PCM Controlled Air Conditioning Diagnosis needs to be replaced with the revised graphic.