Sunfire L4-2.2L VIN F (2002)
Pressure Regulating Solenoid: All Technical Service Bulletins
A/T - Shift Flare/DTC's Set/SES Lamp ON
Bulletin No.: 03-07-30-021A
Date: November 19, 2003
TECHNICAL
Subject:
Neutral Flare and/or RPM Flare While In Drive, No 1-2 Upshift, Service Engine Soon (SES) Light Illuminated, Diagnostic Trouble Codes (DTCs)
P1810, DTC P1815 Set (Reprogram the Powertrain Control Module (PCM), Replace Transmission Fluid Pressure (TFP) Manual Valve Position Switch)
Models:
1995-2003 Chevrolet Cavalier
1997-2003 Chevrolet Malibu
1999-2003 Oldsmobile Alero
1995-2003 Pontiac Sunfire
1998-2003 Pontiac Grand Am
with 4T40E Transmission (RPO MN4) or 4T45E Transmission (RPO MN5)
Supercede:
This bulletin is being revised to add reprogramming of the PCM on 2003 V6 models. Please discard Corporate Bulletin Number 03-07-30-021 (Section
07-Transmission/Transaxle)
Condition
Some customers may comment on a neutral flare and/or RPM increase while in drive or no 1-2 upshift and/or the Service Engine Soon (SES) telltale may
be illuminated. On 1995-2002 model vehicles, the Powertrain Control Module (PCM) may set a DTC P1810 while on 2003 model vehicles, the PCM
may set a DTC P1815.
Cause
The cause may be the transmission fluid pressure (TFP) switch (also known as the pressure switch manifold (PSM)). It will be referred to as the TFP
switch in this bulletin.
Correction
Follow the diagnosis and service procedure below to correct this condition.
VIN BREAKPOINTS
