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Old 04-25-2014, 11:36 PM
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Odd OBD-II Codes: P24B1 & P24AF

Hey all - Okay, is it just me, or does this thing seem to throw the strangest codes?

Is there someplace I can go to find the Jeep translation for these? Looks like they can generically be translated as:

P2xxx Generic
4 Auxiliary Emission Control System

So ... DPF or Urea? Here's the output from my scanner:


Confirmed Trouble Codes
P24B1: ISO/SAE Reserved (Powertrain, Generic)
P24AF: ISO/SAE Reserved (Powertrain, Generic)

Pending Trouble Codes
P24B1: ISO/SAE Reserved (Powertrain, Generic)
P24AF: ISO/SAE Reserved (Powertrain, Generic)

Permanent Trouble Codes
P1D30: Unknown Trouble Code (Powertrain, Unknown)
P24B1: ISO/SAE Reserved (Powertrain, Generic)
P24AF: ISO/SAE Reserved (Powertrain, Generic)

Freeze Frame
P24B1: ISO/SAE Reserved (Powertrain, Generic)
Calculated engine load: 11.8 %
Engine Coolant Temperature: 92 C
Intake Manifold Absolute Pressure: 136.5 kPa
Engine RPM: 1404 RPM
Vehicle Speed Sensor: 34 km/h
Air Flow Rate from Mass Flow Sensor: 43.63 g/s
Time Since Engine Start: 1913 s
Barometric Pressure: 100 kPa
Catalyst Temperature Bank 1, Sensor 1: 224 C
Control module voltage: 14.52 V
Ambient Air Temperature: 14 C
Accelerator Pedal Position D: 8.2 %
Accelerator Pedal Position E: 8.2 %
Fuel type being utilized: Diesel
Engine Oil Temperature: C
Fuel Injection Timing: -1.23
Engine Fuel Rate: 1.70 l/h
Requested Engine Torque: -3.0 %
Actual Engine Torque: 5.0 %
Engine Reference Torque: 569.0
Intake Air Temperature: Bank 1 - Sensor 1: 19 C
Intake Air Temperature: Bank 1 - Sensor 2: 27 C
Intake Air Temperature: Bank 1 - Sensor 3: 62 C
Intake Air Temperature: Bank 2 - Sensor 1: 0 C
Intake Air Temperature: Bank 2 - Sensor 2: 0 C
Intake Air Temperature: Bank 2 - Sensor 3: 0 C
EGR: Commanded EGR Duty Cycle/Position A: 0.0 %
EGR: Actual EGR Duty Cycle/Position A: 0.0 %
EGR: EGR Error A: 0.0 %
EGR: Commanded EGR Duty Cycle/Position B: 0.0 %
EGR: Actual EGR Duty Cycle/Position B: 0.0 %
EGR: EGR Error B: 0.0 %
Diesel Intake Air Flow: Commanded IAF Control A: 94.9 %
Diesel Intake Air Flow: Relative IAF Position A: 94.9 %
Diesel Intake Air Flow: Commanded IAF Control B: 0.0 %
Diesel Intake Air Flow: Relative IAF Position B: 0.0 %
Exhaust Gas Recirculation Temperature: Bank 1 - Sensor 1: 93 C
Exhaust Gas Recirculation Temperature: Bank 1 - Sensor 2: 0 C
Exhaust Gas Recirculation Temperature: Bank 2 - Sensor 1: 0 C
Exhaust Gas Recirculation Temperature: Bank 2 - Sensor 2: 0 C
Fuel Pressure Control: Commanded Fuel Rail Pressure A: 35000 kPa
Fuel Pressure Control: Fuel Rail Pressure A: 35120 kPa
Fuel Pressure Control: Fuel Temperature A: 20 C
Fuel Pressure Control: Commanded Fuel Rail Pressure B: 0 kPa
Fuel Pressure Control: Fuel Rail Pressure B: 0 kPa
Fuel Pressure Control: Fuel Temperature B: 0 C
Turbocharger Compressor Inlet Pressure: Sensor A: 100 kPa
Turbocharger Compressor Inlet Pressure: Sensor B: 0 kPa
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Old 04-26-2014, 07:08 PM
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Re: Odd OBD-II Codes: P24B1 & P24AF

P24b1-00-particulate matter sensor circuit high.
P24af-00-particulate matter sensor circuit performance
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Old 04-26-2014, 10:45 PM
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Re: Odd OBD-II Codes: P24B1 & P24AF

Quote:
Originally Posted by xj31 View Post
P24b1-00-particulate matter sensor circuit high.
P24af-00-particulate matter sensor circuit performance
Thanks - I appreciate that. Do you mind telling me where you found those?

I guess I'm off to the dealer again for the DPF system.
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Old 04-27-2014, 07:18 AM
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Re: Odd OBD-II Codes: P24B1 & P24AF

I found them on Dealerconnect. I'm a tech at a dealer
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Old 04-28-2014, 04:17 PM
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Re: Odd OBD-II Codes: P24B1 & P24AF

Got it - thanks very much for the help!
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Old 05-02-2014, 12:36 AM
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Re: Odd OBD-II Codes: P24B1 & P24AF

I dropped it off this morning at the dealer and got it back this afternoon. They told me that they did a bunch of software updates and performed a manual regen before they took it for a test drive.

From the service report it looks like the updated the PCM, HVAC, and ELSD modules. Not really sure what the HVAC has to do with it, but it does seem to perform a bit better, so that's nice.

Now for the bad news - it threw the same codes about two miles away from the dealer. D'oh. Guess I'll try again next week.
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Old 05-10-2014, 06:56 AM
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Re: Odd OBD-II Codes: P24B1 & P24AF

If that's all they did, I don't have much confidence in whoever worked on it.
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