My truck keeps giving me a cel and a P0069 code dose anyone know what this is?

 

P0069 MAP/BARO Correlation

 

I know where the map is but what is BARO? I've never herd of that one and what is correlation

 

The baro sensor is integral to the MAP sensor. Here's the diagnostic tree. Check your quad connections!


For a complete wiring diagram Refer to Section 8W.

When Monitored:
While the key is on.

Set Condition:
The boost pressure recorded at key on is not within a calibrated range from the inlet air pressure sensor.

Possible Causes
OTHER DTC'S PRESENT
INLET AIR PRESSURE SENSOR
BOOST PRESSURE SENSOR
INTERMITTENT CONDITION


Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

Diagnostic Test
1. OTHER DTC'S PRESENT

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With the scan tool, read DTCs.

Are any DTC's present for Inlet air pressure or boost pressure?

Yes
Repair other DTC's first.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

No
Go To 2



2. COMPARE THE INLET AIR PRESSURE

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Using the scan tool, compare the inlet air pressure (barometric pressure) sensor reading to the boost pressure sensor reading.

Are the pressure readings within 6 in hg of each other?

Yes
Go To 5

No
Go To 3



3. INLET AIR PRESSURE SENSOR

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Turn the ignition on, engine off.
Using the scan tool, read the inlet air pressure sensor value.

Is the inlet air pressure sensor reading consistent with the barometric pressure for the geographic region?

Yes
Go To 4

No
Relace the inlet air pressure sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)



4. BOOST PRESSURE SENSOR

--------------------------------------------------------------------------------
Using the scan tool, read the boost pressure sensor value.

Is the Boost pressure sensor reading consistent with the barometric pressure for the geographic region?

Yes
Go To 5

No
Relace the Boost pressure sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)



5. INTERMITTENT CONDITION

--------------------------------------------------------------------------------
The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
Wiggle the wiring and connectors while checking for any possible open or shorted circuits.
Check for any Service Information Tune-ups or Technical Service Bulletins that may apply.

Were there any problems found?

Yes
Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

No
Test Complete.

 

My, Dodge 2500 quad cab, longbed, 4x4, 2004 has started having issues....sad times around here.....it never has issues.lol
About two weeks ago had fan clutch code and poor cooling under load conditions so to the dealer I go and after a new clutch fan and scan and $$$ lighter I'm happy. Figured after 230000 miles not to bad....truck is fine again. But, once again...Cooling issues under load conditions....back by the same dealer....no fan code but instead had P0069 (boost key on rationality). So, I'm begining to think that maybe I have wiring harness issues (bad or corroded connections and maybe my 350.00 clutch fan wasn't bad at all?
Where are the quad connecter you mentioned located at?
Any help is greatly appreciated. Also, would like to find scan software to put on my laptop and cable for the dodge also, any suggestion?