Cooling System - SES Lamp ON/Low Heater Output
Bulletin No.: 03-06-02-002ADate: February 02, 2005
TECHNICAL
Subject:
Insufficient Heat, Service Engine Soon (SES) Light On, DTC P0128 Set (Replace Thermostat Assembly)
Models:
2002-2003 Saturn VUE Vehicles with 3.0L Engine (VIN B - RPO L81)
2002-2005 Saturn L-Series Vehicles with 3.0L Engine (VIN R - RPO L81)
Attention:
General Manager, Fixed Operations Manager, Parts Manager, and Technician
Supercede:
This bulletin is being revised to include the 2002-2005 L-Series, required parts, and updated part numbers. Please discard Corporate Bulletin Number 03-06-02-002 (Section 06 - Engine).
Condition
Some customers may comment on the SES light coming on and may notice insufficient heat from the heater. When this condition occurs, DTC P0128 may be set and stored by the Engine Control Module (ECM).
Cause
The thermostat opening and regulating engine coolant at a temperature below specification may cause this condition.
Correction
To diagnose and correct this condition, follow DTC P0128 diagnostics for the Saturn L-Series or VUE L81 V6 engine.
Parts Information
Claim Information
To receive credit for this repair during the warranty coverage period, submit a claim through the Saturn Dealer System for J3500 (Thermostat and/or Gasket, Engine-Replace).
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