Yesterday my check engine light turned on which will drive me freaking crazy until I take care of it.

The code that popped up was P0524 which, according to the reader means:
aa1 - Engine oil level low
aa2 - Oil pressure switch/sensor defective
aa3 - Open or short electrical circuit
aa4 - Engine mechanical condition/oil pressure

I checked the oil, it is freshly changed and full.

How would I go about repairing/replacing this sensor (if that is even what is needed)?

The warranty is up...

 

Common on '08 Hemi's with MDS built before August 16, 2007.

There is a TSB on it, number 18-004-07. Dealer will flash your PCM for free if under the warranty period to resolve the problem...


2008 (DR) Ram Truck
2008 (HB/HG) Durango / Aspen
2008 (LX) 300 / Magnum / Charger
2008 (WK) Grand Cherokee
2008 (XK) Commander

NOTE., This bulletin applies to the above listed vehicles equipped with a 5.7L engine with MDS (sales code EZB) built before the following dates:

* (HB/HG) built before August l5, 2007 (MDH0814XX)
* (LX) built before September 14, 2007 (MDH 0914XX)
* (DR) built before August 16, 2007 (MDH 0816XX)
* (WK/XK) built before August 23, 2007 (MDH 0823XX)

Overview:
This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software.

Symptom/Condition:
The vehicle operator may experience a Malfunction Indicator Lamp (MIL) illumination due to the following Diagnostic Trouble Code (DTC):

* P0524 - Engine Oil Pressure Too Low

Diagnosis:
Using a Scan Tool (StarSCAN) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all engine systems are functioning as designed. If other DTC's are present record them on the repair order and repair as necessary before proceeding further with this bulletin.

If the vehicle operator describes or experiences the Symptom/Condition, perform the Repair Procedure.

Parts Required:
Qty. Part No. Description
1 04275086AB Label, Authorized Modification

Special Tools/Equipment Required:
NPN Battery Charger
CH9401 StarSCAN® Tool
CH9404 StarSCAN® Vehicle Cable
CH9409 StarSCAN® Documentation Kit
CH9410 StarSCAN® Ethernet Cable, 12 ft.
CH9412 StarSCAN® Software Update Device Kit
TechCONNECT PC or equivalent

Repair Procedure:

REPAIR PROCEDURE - USING THE INTERNET TO RETRIEVE THE FLASH FILE:

NOTE: Before performing this Repair Procedure, the operating software in the StarSCAN must be programmed with software release level 8.02 or higher. The software release level is visible in the blue header at the top of the StarSCAN screen.

NOTE: The StarSCAN diagnostic scan tool fully supports Internet connectivity. However, to take advantage of this feature you must first configure the StarSCAN for your dealership's network. Make sure the StarSCAN is configured to the dealership's network before proceeding. For instruction on setting up your StarSCAN for the dealer's network refer to either: "DealerCONNECT > Service > StarSCAN and StarMOBILE tools > Online Documentation", or refer to the StarSCAN Quick Start Networking Guide. The StarSCAN Quick Start Networking Guide is also available on the www.dcctools.com website under the "Download Center".

NOTE: If this flash process is interrupted/aborted, the flash should be restarted.
1. Open the hood and install a battery charger. Using a voltmeter, verify that the charging rate provides 13.2 - 13.5 volts. Set the battery charger to continuous charge. Do not allow the charger to time out during the flash process. Remove the charger from the battery when the flash process is complete.
NOTE: Do not allow the charging voltage to climb above 13.5 volts during the flash process.
2. Connect the CH9410 StarSCAN ethernet cable to the StarSCAN and the dealer's network drop.
3. Connect the CH9404 StarSCAN vehicle cable to the StarSCAN and the vehicle.
4. Power ON the StarSCAN.
5. Retrieve the old ECU (TCM) part number. Using the StarSCAN at the "Home" screen:
a. Select "ECU View"
b. Touch the screen to highlight the PCM in the list of modules.
c. Select "More Options".
d. Select "ECU Flash".
e. Record the part number at the top of the "Flash PCM" screen for later reference.
f. Select "Browse for New File". Follow the on screen instructions.
g. Select "Download to Scantool".
h. Select "Close" after the download is complete, then select "Back".
i. Highlight the listed calibration.
j. Select "Update Controller".
k. When the update is complete, select "OK".
6. Verify the part number at the top of the "Flash PCM" screen has updated to the new part number.
NOTE: Due to the PCM programming procedure, a DTC may be set in other modules within the vehicle, if so equipped. Some DTC's may cause the MIL to illuminate. From the "Home" screen select "System View,". Then select "All DTCS". Press "Clear All Stored DTCS" if there are any DTCs shown on the list.
NOTE- The following step is required by law when reprogramming a PCM and/or TCM.
7. Type the necessary information on the "Authorized Modification Label" p/n 04275086AB and attach near the VECI label (Fig. 1).


FIGURE 1 - AUTHORIZED MODIFICATION LABEL

1 - POWERTRAIN CONTROL MODULE P/N (INSERT P/N) USED
2 - CHANGE AUTHORITY: TSB XX-XXX-XX
3 - DEALER CODE: XXXXX
4 - DATE: XX-XX-XX


Policy: Reimbursable within the provisions of the warranty.

 

Wow that's a lot of info! Thanks!

The warranty on my truck is up so I would prob have to do this myself (or pay someone who knows better). My hope is that if it is that common, someone knows of a writeup somewhere that could walk me threw it?

Thanks again

 

you cannot perform this yourself its something only the dealership can do.

 

Took it to the dealership and had it taken care of. For my 2007, the TSB was 18-03-08. They reprogrammed the PCM and the dash check engine light is gone. Cost was $98.

Thanks for the input!