Does the illuminating check engine light to your old Dodge, Chrysler, or Jeep leave you crutching your head wondering what the problem might be? Would you like to know how to read OBD1 codes for these models?
If you would like to add a few skills to your sleeves, then you’re in the right place. You could also be curious about how to perform this task, I assure you, you’ll not be disappointed!
In this post, you will learn how to troubleshoot faulty vehicle components for Dodge, Chrysler, and Jeep OBD1 models. You’ll read through the techniques to pulling error codes and eliminating them after the repair is made.
Let’s dig into it!
Dodge, Chrysler, and Jeep OBD1 Codes List
Free Download: Dodge, Chrysler, and Jeep OBD1 Codes List PDF
| Code | 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. |
Dodge, Chrysler, and Jeep OBD2 Codes List
Free Download: Dodge, Chrysler, Jeep Manufactured-specific OBD2 Codes List PDF
| OBD2 Codes and Definition |
|---|
| P1192 - Inlet Air Temp. Circuit Low |
| P1193 - Inlet Air Temp. Circuit High |
| P1195 - 1/1 O2 Sensor Slow During Catalyst Monitor |
| P1196 - 2/1 O2 Sensor Slow During Catalyst Monitor |
| P1197 - 1/2 O2 Sensor Slow During Catalyst Monitor |
| P1198 - Radiator Temperature Sensor Volts Too High |
| P1199 - Radiator Temperature Sensor Volts Too Low |
| P1281 - Engine Is Cold Too Long |
| P1282 - Fuel Pump Relay Control Circuit |
| P1283 - Idle Select Signal Invalid |
| P1284 - Fuel Injection Pump Battery Voltage Out Of Range |
| P1285 - Fuel Injection Pump Controller Always On |
| P1286 - Accelerator Pedal Position Sensor Supply Voltage Too High |
| P1287 - Fuel Injection Pump Controller Supply Voltage Low |
| P1288 - Intake Manifold Short Runner Solenoid Circuit |
| P1289 - Manifold Tune Valve Solenoid Circuit |
| P1290 - CNG Fuel Pressure Too High |
| P1291 - No Temp Rise Seen From Fuel Heaters |
| P1292 - CNG Pressure Sensor Voltage Too High |
| P1293 - CNG Pressure Sensor Voltage Too Low |
| P1294 - Target Idle Not Reached |
| P1295 - No 5 Volts To TP Sensor |
| P1296 - No 5 Volts To MAP Sensor |
| P1297 - No Change in MAP From Start To Run |
| P1298 - Lean Operation At wide Open Throttle |
| P1299 - Vacuum Leak Found (IAC Fully Seated) |
| P1388 - Auto Shutdown (ASD) Relay Control Circuit |
| P1389 - No Auto Shutdown (ASD) Relay Output Voltage At PCM |
| P1390 - Timing Belt Skipped One Tooth or More |
| P1391 - Intermittent Loss of CMP or CKP |
| P1398 - Mis-Fire Adapter Numerator at Limit |
| P1399 - Wait To Start Lamp Circuit |
| P1403 - No 5 Volts To EGR Sensor |
| P1475 - Aux. 5 Volt Output Too High |
| P1476 - Too Little Secondary Air |
| P1477 - Too Much Secondary Air |
| P1478 - Battery Temp Sensor Volts Out of Limit |
| P1479 - Transmission Fan Relay Circuit |
| P1480 - PCV Solenoid Valve |
| P1482 - Catalyst Temperature Sensor Circuit Shorted Low |
| P1483 - Catalyst Temperature Sensor Circuit Shorted High |
| P1484 - Catalytic Converter Overheat Detected |
| P1485 - Air Injection Solenoid Circuit |
| P1486 - Evap Leak Monitor Pinched Hose |
| P1487 - Hi Speed Rad Fan CTRL Relay Circuit |
| P1488 - Auxiliary 5 Volt Supply Output Too Low |
| P1489 - High Speed Fan CTRL Relay Circuit |
| P1490 - Low Speed Fan CTRL Relay Circuit |
| P1491 - Rad Fan Control Relay Circuit |
| P1492 - Battery Temperature Sensor Voltage Too High |
| P1493 - Battery Temperature Sensor Voltage Too Low |
| P1494 - Leak Detection Pump Switch or Mechanical Fault |
| P1495 - Leak Detection Pump Solenoid Circuit |
| P1496 - 5 Volt Supply Output Too Low |
| P1597 - Speed Control Switch Always Low |
| P1598 - A/C Pressure Sensor Volts Too High |
| P1599 - A/C Pressure Sensor Volts Too Low |
| P1602 - PCM Not Programmed |
| P1680 - Clutch Released Switch Circuit |
| P1681 - No I/P Cluster CCD/J1850 Messages Received |
| P1682 - Charging System Voltage Too Low |
| P1683 - Speed Control Power Relay Or Speed Control 12 Volt Driver Circuit |
| P1684 - Battery Disconnected Within Last 50 Starts |
| P1685 - Skim Invalid Key |
| P1686 - No SKIM Bus Message Received |
| P1687 - No Cluster Bus Message |
| P1688 - Internal Fuel Injection Pump Controller Failure |
| P1689 - No Communication Between ECM & Injection Pump Module |
| P1690 - Fuel injection pump CKP Sensor Does Not Agree With ECM CKP Sensor |
| P1691 - Fuel Injection Pump Controller Calibration Failure |
| P1693 - DTC Detected In ECM Or PCM |
| P1694 - No CCD Messages Received From ECM |
| P1695 - No CCD/J185O Message From BCM |
| P1696 - PCM Failure EEPROM Write Denied |
| P1697 - PCM Failure SRI Mile Not Stored |
| P1698 - No CCD Messages Received From PCM |
| P1719 - Skip Shift Solenoid Circuit |
| P1740 - TCC Or OD Solenoid Performance |
| P1756 - Governor Pressure Not Equal To Target At 15–20 PSI |
| P1757 - Governor Pressure Above 3 PSI When Request Is 0 PSI |
| P1762 - Governor Pressure Sensor Offset Improper Voltage |
| P1763 - Governor Pressure Sensor Voltage Too High |
| P1764 - Governor Pressure Sensor Voltage Too Low |
| P1765 - Trans 12 Volt Supply Relay Control Circuit |
| P1899 - Park/Neutral Position Switch Stuck In Park or In Gear |
Dodge, Chrysler, and Jeep OBD1 Connector Location
Unlike the GM and Ford vehicles, Dodge, Chrysler, and Jeep OBD1 models don’t include a data retrieval connector to check the error codes in the system. The system is forced into self-diagnosis through a series of ignition cycles. Without cranking up the engine, you should turn the ignition on and off twice, and on the third time leave it on the on position.
How to Read Dodge, Chrysler, and Jeep OBD1 Codes
Reading trouble codes is for a Dodge, Chrysler, and Jeep is quite a simple task. To start with, you’ll require a pen, paper, a faithfully competent partner, and some elaborate counting techniques. Next, follow through with these steps for a desirable outcome.
- Firstly, you need to initiate the on board diagnosis system.
- At this time, the check engine light should come up then go off before iterating through the codes.
- The codes are two digit codes. Code 12 is the first to display. The check engine light will flash once, a significant pause, then flashing twice to represent the code 12.
- Next, you will start receiving error codes to your vehicle. For instance, if you’re trouble code is 47, you will count 4 flashes, a significant pause, then 7 flashes.
You could either have no error codes, have single error codes, or multiple error codes. When the onboard computer has no stored trouble codes, the computer will only flash a code 12. A single trouble code is indicated by a code 12 followed by the two-digit code representing your error. Similarly, multiple error codes have the same sequence except that there is a much longer pause between the trouble codes.
- Note that it would help to have a partner write down the codes for you since the codes are iterated against once. Missing a flash during the test could lead to an inaccurate diagnostic.
- Finally, code 55 is iterated through to indicate the end of sequence.
- On completion of the above 6 steps, look up the error codes to your Dodge on the section down below.
How to clear a Dodge, Chrysler, and Jeep OBD1 Codes
After fixing the faulty component or sensor, you might want to get rid of the distractive check engine light. This is the section in which you erase the trouble codes stored in your onboard computer system.
Follow through these simple steps:
- Locate the battery under the hood to your vehicle.
- Look for the negative terminal. There should be a minus sign next to it and a black cable plugged to it.
- You’ll need a wrench for this step. Loosen the bolt to the negative terminal and disconnect it from the battery.
- Next, leave it in the disconnected state for about 15 minutes. The power reserve should expire in this time.
- Reconnect the negative terminal and tighten the bolt reinforcing it.
If the check engine light still illuminates after the series of 5 steps, then you might need to go through the steps once more. However, you may choose to drive for about 50 miles to reset the onboard computer. If the problem persists, then a more serious underline issue is the cause. It would be best if you paid your mechanic a visit for a more elaborate diagnosis.
Read more: Best Dodge Jeep Chrysler Scan Tools 2023 [Review and Comparison]
Final thoughts
A flashing check engine light doesn’t have to ruin your driving experience. You can read Dodge, Chrysler, and Jeep OBD1 error codes and get a fix for the defective system. You simply need to leave the key on the on position after a quick succession of on and off series for 5 times without cranking the engine to initiate the self-diagnostic system.
Next, count the number of check engine light flashes to identify the error codes. Disconnect the negative battery terminal and reconnect it after 15 minutes for an ECU reset to eliminate the error codes after your car has been repaired.
Did you find these techniques helpful? Write it in the comment section below!
Read more: Best Volvo OBD2 scanners review and comparison 2023
