Chrysler / Dodge / Jeep OBD1 Trouble Codes

The following trouble codes are specific to Chrysler, Dodge, and Jeep, since they are of the same parent company.

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Code(s)	Fuel Delivery Type	Description
0	Carb	Due to power on,C.D.R. switch in read position
88	Carb	Begin fault code display
11	Carb	Oxygen Feedback Solenoid circuit (mixture control solenoid)
11	Injected	No Distributor Reference Signal Detected During Cranking (CMP)
12	Carb	Transmission (TCC) unlock relay circuit
13	Carb	Air Switching Solenoid circuit or Vacuum operated secondary solenoid circuit
13	Injected	1. Manifold Absolute Pressure (MAP) Sensor Output Change Is Slower And/Or Smaller Than Expected. 2. No Difference Recognized Between Manifold Absolute Pressure (MAP) Reading And Barometric (Atmospheric) Pressure Reading (BARO) At Start-Up.
14	Carb	Battery was recently disconnected
14	Injected	1. Manifold Absolute Pressure (MAP) Sensor Input Less Than Minimum Acceptable Voltage 2. Manifold Absolute Pressure (MAP) Sensor Input More Than Maximum Acceptable Voltage.
15	Injected	No Distance Sensor (VSS) Signal Detected During Road Load Conditions
17	Carb	Electronic throttle ciontrol solenoid circuit (Idle Speed Control)
17	Injected	Coolant Temperature (CTS) Stays Less Than Normal Operating Temperature During Vehicle Operation
18	Carb	Exhaust Gas Recirculation (EGR) solenoid circuit or Cannister purge solenoid circuit
21	Carb	No distributor pick-up signal (CMP) during crank
21	Injected	1. No Rich Or Lean Signal Is Detected From O2 Sensor (O2S) Input. 2. O2 Sensor (O2S) Input Voltage Maintained At More Than Normal Operating Range.
22	Carb	Oxyegen Sensor (O2S) Lean
22	Injected	1. Coolant Temperature Sensor (CTS) Input Less Than Minimum Acceptable Voltage 2. Coolant Temperature Sensor (CTS) Input More Than Maximum Acceptable Voltage.
23	Carb	Oxygen Sensor (O2S) Rich
23	Injected	1. Throttle Body Temperature Sensor Input Less Than Minimum Acceptable Voltage 2. Throttle Body Temperature Sensor Input More Than Maximum Acceptable Voltage.
24	Carb	Vacuum Transducer circuit open or shorted
24	Injected	1. Throttle Position Sensor (TPS) Input Less Than Minimum Acceptable Voltage 2. Throttle Position Sensor (TPS) Input More Than Maximum Acceptable Voltage.
25	Carb	Fan/Coolant sensor (CTS) circuit or Charge temperature switch (IAT) circuit
25	Injected	Open Or Shorted Condition Detected In One Or More Auto Idle Speed (AIS) Control Circuits.(IAC)
26	Carb	Engine coolant sensor (CTS) error
27	Injected	Injector Output Driver Does Not Respond Properly To SBEC (PCM) Control Signal.
28	Carb	Vehicle speed switch (VSS) circuit
31	Carb	Engine not cranked since battery was disconnected
31	Injected	Open Or Shorted Condition Is Detected In Purge Solenoid Circuit
32	Carb	Computer failure
32	Injected	Open Or Shorted Condition Is Detected In Exhaust Gas Recirculation (EGR) Solenoid Circuit
33	Carb	Computer failure (PCM)
33	Injected	Open Or Shorted Condition Detected In A/C Clutch Relay Circuit
34	Injected	Open Or Shorted Condition Detected In Speed Control (S/C) Vacuum Or Vent Solenoid Circuits
35	Injected	Open Or Shorted Condition Detected In Radiator Fan Relay Circuit
37	Injected	Computer Open Or Shorted Condition Detected In Torque Converter Lock-Up (TCC) Solenoid Circuitfailure
41	Injected	Alternator Field Not Switching Properly
42	Injected	1. Open Or Shorted Condition Detected In Auto Shutdown (ASD) Relay Circuit. 2. No Auto Shutdown (ASD) Relay Voltage Sensed When ASD Relay Is Energized.
43	Injected	Ignition coil circuits 1, 2, or 3. Peak Primary Circuit Current Not Achieved With Maximum Dwell Time
44	Injected	Open Or Shorted Condition Exists In Coolant Temperature Sensor (CTS) Circuit Or In SBEC Battery Temperature Voltage Circuit
45	Injected	Open Or Short Detected In Overdrive Solenoid Circuit.
46	Injected	Charging System Voltage Too High
47	Injected	Charging System Voltage Too Low
51	Injected	1. Heated Oxygen Sensor (HO2S) Input Indicates Lean Air/Fuel Ratio During Engine Operation 2. Adaptive Memory At Rich Limit
52	Injected	1. Heated Oxygen Sensor (HO2S) Input Indicates Rich Air/Fuel Ratio During Engine Operation 2. Adaptive Memory At Lean Limit
53	Injected	Internal Failure In Engine Controller (PCM)
54	Injected	No Fuel Sync Signal (CMP) Detected During Engine Rotation
55	Carb	End of Fault Code Display
55	Injected	Completion Of Fault Code Display By CHECK ENGINE Light.
62	Injected	Unsuccessful Attempt To Update EMR Mileage In SBEC
63	Injected	Unsuccessful Attempt To Write To An EEPROM Location By SBEC.