mtblackdog

P0111 Intake Air / Charge Temperature Sensor Performance / Rationality.
Can anyone explain this a bit better to me. And what to do. MIL light came on and this is the code it threw.

cbrahs

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Sensor, Intake Air Temperature/Pressure
Part Numbers:
05139278A$
Issue Description:
When diagnosing a vehicle with a P0111 fault code, be aware that replacing the Intake Air Temperature/Pressure Sensor generally will not correct the concern. Software for 2006 applications is now available - see TSB 18-005-06 Rev. B. Software to correct 2005 and older applications is found on TSB 18-022-06.





THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 18-022-06 DATED
JULY 13, 2006, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS
ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE THE ADDITION OF DTC
P0191 - FUEL RAIL PRESSURE SENSOR CIRCUIT PERFORMANCE.
THE DRBIII® FLASH FILES FOR THIS BULLETIN ARE AVAILABLE ON
DealerCONNECT.
SUBJECT:
Flash: 5.9L Turbo-Diesel Engine System Enhancements
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Engine Control Module
(ECM) with new software.
MODELS:
2003 - 2005 (DR / DH) Ram Truck
NOTE: This bulletin applies to vehicles equipped with a 5.9L turbo diesel engine
(sales codes ETC and ETH respectively).
SYMPTOM/CONDITION:
The following enhancements are included with this software:
1. Improved engine cooling (radiator fan activation) and prevention of possible engine
overheat. When coolant temperature faults are present the radiator fan is enabled
(turned on) during vehicle operation.
2. Correction to oil pressure reading when engine is operating at higher engine
temperatures above 91°C (195°F).
3. Improvement to the Temperature Sensor Rationality Test to prevent possible false test
failures and the following related Diagnostic Trouble Codes (DTC's):
a. DTC P0071 - Inlet Air Temperature Sensor Rationality.
b. DTC P0111 - Intake Air Temperature (IAT) Sensor Rationality.
c. DTC P0514 - Battery Temperature Sensor Rationality.
4. Additional Water-In-Fuel (WIF) warning added to indicate that the operator has had a
WIF DTC P2269 and has continued to operate (drive) the vehicle in excess of 500
miles without draining the water from the fuel filter. The following is the new WIF DTC
that has been added:
a. DTC P0169 - WIF Too Long Error
NUMBER: 18-022-07
GROUP: Vehicle Performance
DATE: March 14, 2007
5. ** Improvement to the Fuel Pressure Rationality Test to prevent possible false test
failures and the following related Diagnostic Trouble Code:
a. DTC P0191 - Fuel Rail Pressure Sensor Circuit Performance (2004.5 to 2005 M.Y.
vehicles). **
DIAGNOSIS:
Using a Scan Tool (DRBIII®) with the appropriate Diagnostic Procedures available in
TechCONNECT, verify all engine systems are functioning as designed. If DTCs 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.
SPECIAL TOOLS / EQUIPMENT REQUIRED:
NPN Battery Charger
CH2002 General Purpose Interface Bus Cable Assembly
CH6000A Scan Tool (DRBIII®)
CH7000A J1962 Cable with red DRBIII® connector
TechCONNECT Workstation
NOTE: An updated J1962 cable has been released. This cable has a red colored
connector at the DRBIII® connection. Use this cable whenever a flash is
being performed.
REPAIR PROCEDURE:
NOTE: Whenever a controller is programmed, the software in the DRBIII® must be
programmed with the latest revision level available. Current software version
is 63.3.
NOTE: If this flash process is interrupted/aborted, the flash process should be
restarted and then follow the directions on the DRBIII®.
NOTE: Remove any unnecessary PCMCIA cards prior to starting a DRB III® flash.
1. Before beginning the reprogramming procedure, remove any old flash reprogramming
files from the DRBIII® memory. To clear the memory from the MAIN MENU power up
the DRBIII® and then:
a. Simultaneously press the “MORE” and “YES” keys.
b. A screen will appear requesting a “COLD BOOT”.
c. Follow the on screen instructions by selecting the “F4” key.
d. When the DRBIII® reboots to the MAIN MENU, proceed to Step #2
2. With the ignition switch in the “RUN” position, determine and record the “ECM part
number” of the ECM currently in the vehicle. Using the DRBIII® select:
a. "DRBIII® Standalone"
b. "1998 - 2007 Diagnostics"
c. "All (Except Below)"
18-022-07 -2-
d. “Engine”
e. “Module Display”
f. Record the “ECM part number” on the repair order for later reference.
NOTE: If the ECM is not operational, the “ECM part number” can be obtained from
the label on the controller. For 2003 and later vehicles, if the label on the
controller is not legible, record the “Reference No.” for use later. The
“Reference No.” is located in the Reference No. box at the top, center of the
Engine Data Plate (Fig. 1). Do not use the reference number shown in the
figure. The Engine Data Plate is located on the intake side of the breather
cover or affixed to the APPS bracket.
Fig. 1 ENGINE DATA PLATE (2003 AND LATER SHOWN)
1 - ENGINE SERIAL NUMBER
2 - REFERENCE NUMBER
3 - DATE OF ENGINE MANUFACTURE
3. Page back to the “Main Menu”
4. Determine if the vehicle is equipped with SKIM. Using the DRBIII® select:
a. “DRBIII Standalone”
b. “1998 - 2007 Diagnostics”
c. “All”
d. “System Monitor”
e. “J1850 Module Scan”
f. Look for “SKIM” in the list of modules.
5. If the vehicle is not equipped with SKIM then proceed to Step #6. If the vehicle is
equipped with SKIM obtain the vehicle Personal Identification Number (PIN) before
continuing with Step #6. This information is available from:
a. The original selling invoice.
-3- 18-022-07
b. The DealerCONNECT system under the “Parts” tabs - select “Key Codes”.
c. By contacting the District Manager.
CAUTION: Failure to install the SKIM pin number into the module after flashing the
Cummins ECM will cause a start and stall condition.
6. Install a battery charger and verify that the charging rate provides approximately 13.2 -
13.8 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: When reprogramming a Cummins ECM be sure to do the following;
• Download the flash file from TechCONNECT to the DRBIII® with the
DRBIII® disconnected from the vehicle.
• Download the flash file from the DRBIII® to the vehicle with the DRBIII®
disconnected from TechCONNECT.
7. Connect the DRBIII® to TechCONNECT. Open TechTOOLS and verify that the
"DRBIII® Status: Connected" message is in the upper right corner of the TechTOOLS
screen.
8. Enter the old Cummins “ECM part number” obtained from the DRBIII® in Step #2 into
the “Parts Criteria” window.
9. Select “Show Updates”.
10. Highlight the proper flash file from the list:
a. If the old “ECM part number” is known, highlight the flash file listed, based on the
old “ECM part number” recorded earlier Step #2.
b. If the old part number is not known, highlight the proper flash file based on the
Reference No. located in the “Ref. No.” box, at the top, center of the Engine Data
Plate (Fig. 1).
11. Select the “DRBIII” radio button which is next to the “Download/Update” button.
12. Select the “Download/Update” button.
13. Monitor the "Flash Download/Update Progress" window on the TechCONNECT and
follow the instructions on TechCONNECT. When the flash process is complete,
proceed to the next step.
14. Disconnect the DRBIII® from TechCONNECT.
15. Connect the DRBIII® to the vehicle.
16. Download the flash file from the DRBIII® to the vehicle. Using the DRBIII® select:
a. “Vehicle Flash”
b. Follow the directions on the DRBIII® screen. When the flash process is complete,
proceed to the next step.
17. If the vehicle is equipped with SKIM, proceed to Step #18. If the vehicle is not
equipped with SKIM, proceed to Step #19.
18. On vehicles equipped with SKIM, transfer the VIN and Security Key information from
the SKIM to the ECM. Using the DRBIII® select:
a. “DRBIII Standalone”
b. “1998 - 2007 Diagnostics”
c. “All”
d. “Theft Alarm”
e. “SKIM”
f. “Miscellaneous”
g. “Cummins ECM Replaced”
h. Follow the directions on the DRBIII® screen. When the process is complete,
proceed to Step #20.
18-022-07 -4-
19. On vehicles not equipped with SKIM, manually enter the VIN in the ECM. Using the
DRBIII® select:
a. “DRBIII Standalone”
b. “1998 - 2007 Diagnostics”
c. “All”
d. ”Engine”
e. “Cummins Controller (ECM/ENGINE)”
f. “Miscellaneous”
g. “CM84X Check VIN”
h. Follow the directions on the DRBIII® screen. When the process is complete,
proceed to next step.
NOTE: Due to the Cummins controller programming procedure, a DTC may be set in
other modules (PCM, TCM, BCM, MIC, SKIM, etc.) within the vehicle, if so
equipped. Some DTC's may cause the MIL to illuminate. Check all modules
using “Module Scan”, record the DTC's, and erase these DTC's prior to
returning the vehicle to the customer. Erase any DTC's in the PCM only after
all other modules have had their DTC's erased.
NOTE: The following step is required by law.
20. Type the necessary information on the “Authorized Modification Label” p/n
04275086AB and attach near the VECI label (Fig. 2).

madhat

It basically means that the computer does not read a change in temp over a period of time with your IAT. I would pull it and clean the connectors really good, then plug it back in. Take it to autozone or the like and have the code cleared. If it still happens, you may have to change the sensor.

The choices for this code are either a bad sensor or a intermittent condition. It can always be wires, so check the wires and make sure they are not cut/torn/frayed...

hth.

mad

mtblackdog

Thanks its on a 2005 1 ton diesel. Stock.