Malibu L4-2.4L (2010)
PROM - Programmable Read Only Memory: Customer Interest
Engine Controls - MIL ON/DTC P0172 Set
TECHNICAL
Bulletin No.: 10-06-04-004A
Date: January 13, 2011
Subject: Intermittent Illumination of Malfunction Indicator Lamp (MIL)/Check Engine Light, DTC P0172 Set (Verify Alcohol Content Information in
PCM)
Models:
2010 Chevrolet Malibu
Equipped with 2.4L 4 Cylinder Engine (VINs B, 0 - RPOs LE5, LE9)
Please refer to GWM/IVH
Supercede:
This bulletin is being revised to update the engine type codes. Please discard Corporate Bulletin Number 10-06-04-004 (Section 06 - Engine/Propulsion
System).
Condition
Some customers may comment on an intermittent illumination of the malfunction indicator lamp (MIL)/check engine light.
Technicians may find a DTC P0172 set.
Correction
Use the procedure below to determine if the PCM has the incorrect alcohol content information.
1. Verify the actual measured percentage of alcohol content using the J-44175-A tester. Refer to Alcohol in Fuel Diagnosis in SI.
If the actual alcohol is less than 15%, determine the "Fuel Alcohol Content" using the Tech 2(R).
2. Install the Tech 2(R) and build the vehicle as a 2010 and select Powertrain.
3. Build the vehicle with an LE9 engine (even if it has the LE5 engine).
-
Select Special Functions.
-
Select Fuel System (F2).
