Wastegate Solenoid - Revised DTC-78 Fault Tree Chart

File In Section: 6E - Engine Fuel Emission

Bulletin No.: 61-65-19A

Date: April, 1997

SERVICE MANUAL UPDATE

Subject:
Section 3 - Control Module Systems - Revised DTC 78 Wastegate Solenoid Fault Tree Chart

Models:
1994-95 Chevrolet and GMC C/K, P3 Models
with 6.5L Engine (VINs S, F - RPOs L56, L65)

This bulletin is being revised to update DTC 78 Step 3 diagnosis. Please discard Corporate Bulletin Number 61-65-19 (Section 3 - Control Module Systems).





This bulletin is being issued to inform technicians of a revision to DTC 78 Wastegate Solenoid Fault tree chart on the following Service Manual pages:

^ Page 3-109 (Diesel Section) 1994-95 P3 and PG Driveability, Emissions and Electrical Diagnosis Service Manual books # NAPT-9440 and GMT/95-PG-2

^ Page 3-109 1994-95 C/K Driveability, Emissions and Electrical Diagnosis Service Manual books # NAPT - 9442 and GMT/95-PG-2

^ Page 3-115 1995 C/K Reprint Driveability, Emissions and Electrical Diagnosis Service Manual book # GMT/95-C/K-2F

Technicians are instructed to use the revised tree chart for future diagnosis.