what do these codes mean ?

[1965LONEWOLF]

Well i checked for code on the odometer and this is what it reads:



C - code

64 85

a4 31

ac 69



don't what any of this means - but i'm hoping someone does on here

 

[1965LONEWOLF]

no one knows what thses mean ?

 

[JJPage]

I have checked all my list's, can't find any "c" codes. I wonder if they have something to do with the instrument panel diagnostics?



Here is a link to one of the most complete list of "p" codes I have, sorry not much help. Obtaining engine diagnostic codes Ram 3rd Gen by 94rt10ohio - DodgeForum.com

 

[p-Bar]

How did you pull these up ? here is the list


P0016 Crankshaft/Camshaft Timing Misalignment/Out-of-Sync
P0071 Ambient Temperature Sensor Performance / Rationality
P0072 Ambient Temperature Sensor Low
P0073 Ambient Temperature Sensor High
P0088 Fuel Rail Pressure Too High
P0106 Manifold Absolute Pressure Sensor Performance / Rationality
P0107 Manifold Absolute Pressure Sensor Low
P0108 Manifold Absolute Pressure Sensor High
P0111 Intake Air / Charge Temperature Sensor Performance / Rationality
P0112 Intake Air / Charge Temperature Sensor Low
P0113 Intake Air / Charge Temperature Sensor High
P0116 Engine Coolant Temperature Sensor Performance / Rationality
P0117 Engine Coolant Temperature Sensor Low
P0118 Engine Coolant Temperature Sensor High
P0128 Cooling System Error / Thermostat Rationality
P0148 Fuel Delivery Error
P0169 Water-in-Fuel Detected For Too Long
P0192 Fuel Rail Pressure Sensor Low
P0193 Fuel Rail Pressure Sensor High
P0201 Fuel Injector 1 Circuit
P0202 Fuel Injector 2 Circuit
P0203 Fuel Injector 3 Circuit
P0204 Fuel Injector 4 Circuit
P0205 Fuel Injector 5 Circuit
P0206 Fuel Injector 6 Circuit
P0217 Coolant Temperature Too High
P0219 Engine Overspeed
P0234 Turbocharger Overboost Condition
P0236 Turbocharger Boost Pressure Sensor Performance / Rationality
P0237 Turbocharger Boost Pressure Sensor Low
P0238 Turbocharger Boost Pressure Sensor High
P0251 Injection Pump Fuel Valve Feedback
P0300 Multiple Cylinder Misfire
P0301 Cylinder 1 Misfire
P0302 Cylinder 2 Misfire
P0303 Cylinder 3 Misfire
P0304 Cylinder 4 Misfire
P0305 Cylinder 5 Misfire
P0306 Cylinder 6 Misfire
P0335 Crankshaft Position Sensor Circuit
P0336 Crankshaft Position Sensor Performance
P0337 Crankshaft Position Sensor Circuit Low
P0338 Crankshaft Position Sensor Circuit High
P0340 Camshaft Position Sensor Circuit
P0341 Camshaft Position Sensor Performance / Rationality
P0381 Wait-to-Start Lamp Inoperative
P0461 Fuel Level Sensor 1 Performance / Rationality
P0462 Fuel Level Sensor 1 Low
P0463 Fuel Level Sensor 1 High
P0477 Exhaust Pressure Control Relay Low
P0478 Exhaust Pressure Control Relay High
P0480 Cooling Fan 1 Control Circuit/Open (Low Speed Fan Relay)
P0483 Cooling Fan Speed
P0500 Vehicle Speed Sensor 1 Circuit, or No Vehicle Speed Reference Signal 1
P0514 Battery Temperature Sensor Performance / Rationality
P0516 Battery Temperature Sensor Low
P0517 Battery Temperature Sensor High
P0521 Oil Pressure Sensor Performance / Rationality
P0524 Oil Pressure Too Low
P0532 A/C Pressure Sensor Low
P0533 A/C Pressure Sensor High
P0541 Intake Air Heater Relay 1 Low
P0542 Intake Air Heater Relay 1 High
P0562 Battery Voltage Low
P0563 Battery Voltage High
P0572 Brake Switch 1 Low
P0573 Brake Switch 1 High
P0580 Speed Control Multiplexed Switch 1 Low
P0581 Speed Control Multiplexed Switch 1 High
P0602 Control Module Programming Error/NotProgrammed
P0604 Internal Control Module RAM Integrity Failure
P0606 Internal ECM Processor
P0607 ECU Internal Performance
P0622 Generator Field Control Circuit
P0628 Fuel Pump Relay Circuit Low, or Fuel Lift Pump Control Circuit Low
P0629 Fuel Pump Relay Circuit High, or Fuel Lift Pump Control Circuit High
P0630 VIN Not Programmed in PCM
P0633 SKIM Key Not Programmed in PCM
P0642 Sensor Reference Voltage 1 Circuit Low
P0643 Sensor Reference Voltage 1 Circuit High
P0646 A/C Clutch Relay Circuit Low
P0647 A/C Clutch Relay Circuit High
P0652 Sensor Reference Voltage 2 Circuit Low
P0653 Sensor Reference Voltage 2 Circuit High
P0698 Sensor Reference Voltage 3 Circuit Low
P0699 Sensor Reference Voltage 3 Circuit High
P0700 Transmission Control System (MIL Request)
P0837 Four Wheel Drive (4WD) Switch Performance / Rationality
P0838 Four Wheel Drive (4WD) Switch Circuit Low
P0839 Four Wheel Drive (4WD) Switch Circuit High
P1652 J1850 Communication Bus
P2121 Pedal Position Sensor 1 Performance / Rationality
P2122 Pedal Position Sensor 1 Low
P2123 Pedal Position Sensor 1 High
P2127 Pedal Validation Switch 2 Low
P2128 Pedal Validation Switch 2 High
P2146 Fuel Injector Group 1 Supply Voltage Circuit
P2149 Fuel Injector Group 2 Supply Voltage Circuit
P2266 Water in Fuel Sensor Circuit Low
P2269 Water in Fuel Condition
P2502 Charging System Output Voltage
P2503 Charging System Output Low
P2504 Charging System Output High
P2509 ECM/PCM Power Input Signal Intermittent
P2607 Intake Air Heater Relay 2 Low
P2608 Intake Air Heater Relay 2 High
P2609 Intake Air Heater System Performance
__________________

 

[MMeier]

Never heard of a C code before . How did you access those ? To get P codes on my '03 I do the on, off, on, off, on routine .

 

[TCDiesel]

Well i checked for code on the odometer and this is what it reads:



C - code

64 85

a4 31

ac 69



don't what any of this means - but i'm hoping someone does on here

Those are form the IC. I don't have the Code list with Me,If No one post them I will next Year... ... ... ... ... ...

 

[goodguys75]

awsome, just printed a copy for myself... good to have with yaOo.

 

[MQuirin]

Well i checked for code on the odometer and this is what it reads:

C - code
64 85
a4 31
ac 69

don't what any of this means - but i'm hoping someone does on here

Looks like instrument cluster codes. I copied this from another site.

"If you're getting codes by holding the trip/reset on your odometer while turning the key on, it is the fault codes for your instrument cluster. "The text “C Code” is displayed in the odometer display for about three seconds. If there is no stored fault information, the display will show two pairs of zeroes in the format “00” “00”, which indicate that the display of fault information is done. If there is stored fault information, two sets of two-digit alpha and alpha-numeric fault codes will appear in the odometer display for a three second interval. The first pair of digits represents a fault code for the instrument cluster. The second pair of digits is a counter for the number of ignition key cycles that have occurred since the displayed fault code was set. The instrument cluster will continue to display additional sets of two pairs of digits at three second intervals until all of the stored codes have been displayed, which is again signaled by a code of “00” “00”. "

See post 2 here:

Trouble Codes - Dodge Cummins Diesel Forum

 

[cerberusiam]

C-codes are chassis codes. This is the listing I have but not complete:



64 Driver door lock switch input circuit open.



AC ABS messages not received.