You might be surprised to learn that your Plymouth vehicle‘s onboard computer has been tracking issues and storing error codes, even if the “check engine” light hasn’t come on. These cryptic codes, known as OBD/OBD2 codes, can reveal valuable information about your vehicle’s systems and help you diagnose problems before they become major issues.
But what do these codes mean, and how do you access them? You’ll need to understand the language of these codes to tap into your vehicle’s secrets and get back on the road quickly.
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Understanding OBD-II Codes
When you’re dealing with a problematic vehicle, deciphering OBD-II codes is a crucial step in identifying the root cause of the issue.
The Check Engine light on your dashboard is triggered by Diagnostic Trouble Codes (DTCs) stored in your vehicle’s onboard computer. To access these codes, you’ll need an OBD-compatible code reader.
The codes themselves are a combination of letters and numbers, with the first letter indicating the system affected, such as “P” for powertrain or “B” for body.
Understanding these code definitions can help you diagnose issues, from sensor readings to transmission repair, and even gauge cluster malfunctions.
Retrieving Plymouth Trouble Codes
To retrieve Plymouth trouble codes, connect your OBD II scan tool to the 16-pin data link connector (DLC) near the steering column, then follow the manufacturer’s operating instructions to access the Diagnostic Trouble Codes (DTCs) stored in your vehicle’s onboard computer.
Next, turn the ignition on, but don’t start the engine, to access the diagnostic mode. Some Plymouth models may require a specific key sequence or button press to access this mode and retrieve trouble codes.
Your scan tool will display the trouble codes, which may include manufacturer-specific codes. If needed, refer to the Generic OBD II code list for definitions on other Plymouth diagnostic trouble codes.
Now, you can use these codes to diagnose and repair issues with your car.
Code Lists and Definitions
Having access to comprehensive code lists and definitions is essential for accurately diagnosing and repairing issues with your Plymouth vehicle.
You’ll find a vast library of vehicle codes, including trouble codes that trigger the Check Engine light, organized in numerical order for easy searching.
Code definitions are available for various Plymouth models. They cover P-style computer error codes for late 1990s and 2000s vehicles and climate control error codes specific to certain models.
This code list is regularly updated with new codes, and you can report missing codes using the Contact Page form.
With this resource, you’ll be able to identify powertrain problems, transmission repair needs, and sensor readings, ensuring you’re well-equipped to tackle OBD/OBD2 issues in your Plymouth.
Most Common Plymouth OBD-II Trouble Codes
| Code | Description |
|---|---|
| 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 |
| P1498 | High speed Rad Fan Ground CTRL Rly Circuit |
| P1594 | Charging System Voltage Too High |
| P1595 | Speed Control Solenoid Circuits |
| P1596 | Speed Control Switch Always High |
| 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 |
