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Thread: CEL Codes
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post #1 of Old 03-24-2008, 11:04 PM Thread Starter
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CEL Codes

2000 and newer Dakotas and Durangos have a built-in system that can display check engine light (CEL) codes without the use of a scanner. 1999 and earlier Dakotas/Durangos must be read with a scanner, check your local dealership or auto parts store for assistance.

To check your engine codes:
Turn the key to ON (not start), OFF, ON, OFF, ON and leave it there. If you look in the odometer window the codes will flash any code(s) with a small delay between each result. Each code should be in a P#### format, and will say PDONE when completed - turn your key to OFF and remove. Use the OBD code list to determine what problem the computer detected.

To reset your engine codes:
Remove the negative terminal of your battery (10mm wrench).
Turn your ignition key to START and hold it there for about 15 seconds.
Turn your ignition key to OFF and remove it.
Connect the negative terminal of your battery.


OBD Codes:
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P0030 (M) 1/1 O2 Sensor Heater Relay Circuit Problem detected in oxygen sensor heater relay circuit.
P0036 (M) 1/2 O2 Sensor Heater Relay Circuit Problem detected in oxygen sensor heater relay circuit.
P0106 Barometric Pressure Out Of Range MAP sensor input voltage out of an acceptable range detected during reading of barometric pressure at key-on.
P0107 (M) Map Sensor Voltage To Low MAP sensor input below minimum acceptable voltage.
P0108 (M) Map Sensor Voltage To High MAP sensor input above maximum acceptable voltage.
P0112 (M) Intake Air Temp Sensor Voltage Low Intake air (charge) temperature sensor input below the minimum acceptable voltage.
P0113 (M) Intake Air Temp Sensor Voltage High Intake air (charge) temperature sensor input above the maximum acceptable voltage.
P0116 A rationality error has been detected in the coolant temp sensor.
P0117 (M) ETC Sensor Voltage Too Low Engine coolant temperature sensor input below the minimum acceptable voltage.
P0118 (M) ETC Sensor Voltage To High Engine coolant temperature sensor input above the maximum acceptable voltage.
P0121 (M) TPS Voltage Does Not Agree With MAP TPS signal does not correlate to MAP sensor signal.
P0121 (M) Accelerator Position Sensor (APPS) Signal Voltage Too Low APPS voltage input below the minimum acceptable voltage.
P0122 (M) Throttle Position Sensor Voltage Low Throttle position sensor input below the acceptable voltage range.
P0122 (M) Accelerator Position Sensor (APPS) Signal Voltage Too Low APPS voltage input below the minimum acceptable voltage.
P0123 (M) Throttle Position Sensor Voltage High Throttle position sensor input above the maximum acceptable voltage.
P0123 (M) Accelerator Position Sensor (APPS) Signal Voltage Too High APPS voltage input above the maximum acceptable voltage.
P0125 (M) Closed Loop Temp Not Reached Time to enter closed loop operation (fuel control) is excessive.
P0125 (M) Engine Is Cold Too Long Engine does not reach operating temperature.
P0131 (M) 1/1 O2 Sensor Shorted To Ground Oxygen sensor input voltage maintained below normal operating range.
P0132 (M) 1/1 O2 Sensor Shorted To Voltage Oxygen sensor input voltage maintained above normal operating range.
P0133 (M) 1/1 O2 Sensor Slow Response Oxygen sensor response slower than minimum required switching frequency.
P0134 (M) 1/1 O2 Sensor Stays At Center Neither rich or lean condition is detected from the oxygen sensor input.
P0135 (M) 1/1 O2 Sensor Heater Failure Oxygen sensor heater element malfunction.
P0137 (M) 1/2 O2 Sensor Shorted To Ground Oxygen sensor input voltage maintained below normal operating range.
P0138 (M) 1/2 O2 Sensor Shorted To Voltage Oxygen sensor input voltage maintained above normal operating range.
P0139 (M) 1/2 O2 Sensor Slow Response Oxygen sensor response not as expected.
P0140 (M) 1/2 O2 Sensor Stays At Center Neither rich or lean condition is detected from the oxygen sensor.
P0141 (M) 1/2 O2 Sensor Heater Failure Oxygen sensor heater element malfunction.
P0143 (M) 1/3 O2 Sensor Shorted To Ground Oxygen sensor input voltage maintained below normal operating range.
P0144 (M) 1/3 O2 Sensor Shorted To Voltage Oxygen sensor input voltage maintained above normal operating range.
P0145 (M) 1/3 O2 Sensor Slow Resonse Oxygen sensor response slower than minimum required switching frequency.
P0146 (M) 1/3 O2 Sensor Stays At Center Neither rich or lean condition is detected from the oxygen sensor.
P0147 (M) 1/3 O2 Sensor Heater Failure Oxygen sensor heater element malfunction.
P0151 (M) 2/1 O2 Sensor Shorted To Ground Oxygen sensor input voltage maintained below normal operating range.
P0152 (M) 2/1 O2 Sensor Shorted To Voltage Oxygen sensor input voltage sustained above normal operating range.
P0153 (M) 2/1 O2 Sensor Slow Response Oxygen sensor response slower than minimum require switching frequency.
P0154 (M) 2/1 O2 Sensor Stays At Center Neither rich or lean condition is detected from the oxygen sensor.
P0155 (M) 2/1 O2 Sensor Heater Failure Oxygen sensor heater element malfunction.
P0157 (M) 2/2 O2 Sensor Shorted To Ground Oxygen sensor input voltage input voltage maintained above normal operating range.
P0158 (M) 2/2 O2 Sensor Shorted To Voltage Oxygen sensor input voltage maintained above normal operating range.
P0159 (M) 2/2 O2 Sensor Slow Response Oxygen sensor response slower than minimum required switching frequency.
P0160 (M) 2/2 O2 Sensor Stays At Center Neither rich or lean condition is detected from the oxygen sensor.
P0161 (M) 2/2 O2 Sensor Heater Failure Oxygen sensor heater element malfunction.
P0168 Decreased Engine Performance Due To High Injection Pump Fuel Temp Fuel temperature is above the engine protection limit. Engine power will be derated.
P0171 (M) 1/1 Fuel System Lean A lean air/fuel mixture has been indicated by an abnormally rich correction factor.
P0172 (M) 1/1 Fuel System Rich A rich air/fuel mixture has been indicated by an abnormally lean correction factor.


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