Service Engine Soon Lamp ON, DTC P0147 Set
File In Section: 06 - Engine/Propulsion SystemBulletin No.: 01-06-04-004
Date: February, 2001
TECHNICAL
Subject:
SES Light Illuminated - DTC P0147 Set, 02 Sensor Heater (Reprogram VCM)
Models:
2000 Chevrolet and GMC M/L Van
with 4.3 L V6 Engine (VIN W - RPO L35)
and California Emissions (RPO NC1/NC8/NF4)
Built prior to February 21, 2000
Condition
Some customers may comment on an illuminated Service Engine Soon (SES) Light. Upon investigation, the technician identifies a DTC P0147 has been set.
Cause
Vehicle system interactions may cause the OBD2 diagnostics to set a P-code for the 02 sensor's heater performance.
Correction
After following Strategy-Based Diagnostics without resolution, reprogram the VCM with the latest calibration. DO NOT replace the 02 Sensor.
Important:
All DTCs, calibration numbers, technician observations, and customer comments are to be recorded on the repair order in accordance with article 1 .6.2G of the General Motors Service Policies and Procedures Manual.
Calibration Information
The Calibrations shown are electronic calibrations and are NOT available from GMSPO. Calibrations will be available from Techline starting January 2001, on the TIS 2000 version TIS 01/2001 data or later.
Warranty Information
For vehicles repaired under warranty. use table as shown.
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