When your Chrysler’s “check engine” light comes on, it’s not just a vague warning – it’s a signal that your vehicle’s onboard computer has detected a problem and is trying to tell you something. But what exactly is it saying? That’s where OBD/OBD2 codes come in. These diagnostic trouble codes can give you a wealth of information about what’s going on under the hood, from faulty oxygen sensors to transmission issues.
But how do you access these codes, and what do they really mean? Let’s take a closer look at how to tap into this valuable information and get your Chrysler running smoothly again.
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Understanding Chrysler Computer Codes
As you plunge into the world of Chrysler computer codes, it’s essential to understand that these codes aren’t just random numbers, but rather a sophisticated language that helps diagnose issues in your vehicle.
These Diagnostic Trouble Codes (DTCs) are triggered when your vehicle’s onboard computer detects abnormal behavior, such as a faulty Position Sensor.
By using a scan tool, you can access these codes, which provide valuable insights into the problem.
Keep in mind that error codes may not always indicate actual problems, and may instead be caused by other components.
Accessing Diagnostic Trouble Codes
Accessing Diagnostic Trouble Codes requires a clear understanding of the procedures and tools involved.
On older Chrysler vehicles, you’ll need to use specific key sequences to access codes, which may be triggered by a loose gas cap, affecting the oxygen sensor.
On newer vehicles, OBD-compatible code readers can diagnose issues, displaying codes on the odometer.
You can reset the computer using a scan tool or by disconnecting the battery for a few minutes, but be aware that this will reset clock and other settings.
For transmission repair, you’ll need to follow a specific sequence of driving and turning off the ignition to clear the Check Engine light.
Chrysler OBD codes provide valuable information for troubleshooting, so it’s essential to understand how to access and interpret them.
OBD-II Code Lists and Resources
You’ll find that OBD-II codes are categorized into four main subsets: powertrain, network and integration, body, and chassis. These categories help you narrow down the issue, making it easier to diagnose and troubleshoot problems.
For instance, P codes deal with powertrain issues, such as fuel and air metering or engine misfiring. B codes relate to body and accessories, C codes to chassis and accessories, and U codes to network and integration.
Online resources like OBD Codex provide comprehensive lists of diagnostic codes, along with descriptions and troubleshooting tips. You can also access specific OBD2 trouble code lists from manufacturers like Chrysler, Dodge, and Jeep, which can be retrieved from their websites or online resources.
This helps you diagnose issues more efficiently, without codes getting in the way of finding the root cause.
Most Common Chrysler OBD-II Trouble Codes
Code | Description |
|---|---|
| P1103 | Turbocharger Wastegate Actuator Problem |
| P1104 | Turbocharger Wastegate Solenoid Fault |
| P1105 | Barometric Pressure Read Vent Valve Solenoid Circuit |
| P1195 | Heated Oxygen Sensor Bank 1 Sensor 1 Slow Response |
| P1196 | Heated Oxygen Sensor Bank 2 Sensor 1 Slow Response |
| P1197 | 1/2 Oxygen Sensor Slow During Catalyst Monitor |
| P1198 | Radiator Temp Sensor Input Too High |
| P1199 | Radiator Temperature Sensor Input Too Low |
| P1281 | The P1281 error code indicates that the engine coolant is not reaching its expected operating temperature quickly enough after the vehicle starts, typically due to issues like a faulty thermostat. |
| P1282 | Fuel Pump Relay Control Circuit Malfunction. This indicates an open or shorted condition detected in the fuel pump relay control circuit. |
| P1283 | Idle Select Signal Invalid Condition |
| 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 Condition. |
| P1288 | Cylinder Head Temp Sensor Out Of Self Test Range |
| P1289 | Cylinder Head Temperature Sensor Circuit High Input. Indicates a malfunction in the cylinder head temperature sensor circuit which can lead to inaccurate engine temperature readings. |
| P1290 | CNG Fuel System Pressure Too High Condition |
| P1291 | No Temperature Rise Seen From Intake Air Heater |
| P1292 | Compressed Natural Gas Pressure Sensor Signal Too High |
| P1293 | Compressed Natural Gas Pressure Sensor Signal Too Low |
| P1294 | Target Idle Not Reached. Indicates that the target RPM was not achieved during drive idle condition, possibly due to a vacuum leak or excessive idle speed |
| P1295 | Electronic Throttle Control (ETC) system malfunction related to power management. |
| P1296 | No voltage to manifold absolute pressure sensor. |
| P1297 | No Change In MAP Sensor Voltage |
| P1298 | Electric Load Detector circuit high voltage. |
| P1299 | Vacuum Leak Present, IAC Fully Seated Conditions |
| P1300 | Ignition timing adjustment circuit failure in the vehicle’s engine. |
| P1388 | ASD (Auto Shutdown) Relay Control Circuit issue; indicates an open or short in the circuit, leading to no engine start (no spark). |
| P1389 | The P1389 code indicates that there is no Auto Shutdown Relay Voltage at the Powertrain Control Module (PCM), which may be due to a faulty ASD relay, wiring issues, or blown fuses. |
| P1390 | Timing Belt Skipped One Or More Teeth |
| P1391 | Intermittent loss of Camshaft Position Sensor (CMP) or Crankshaft Position Sensor (CKP) signal to the Powertrain Control Module (PCM). |
| P1398 | The P1398 diagnostic trouble code (DTC) indicates that the misfire adaptive numerator has reached its limit, and it may be related to issues with the crankshaft position sensor. |
| P1399 | Wait To Start Lamp Circuit Condition |
| P1400 | The P1400 code indicates that the Powertrain Control Module (PCM) software is unauthorized and does not meet factory OEM specifications, often due to aftermarket calibration being detected. |
| P1403 | The P1403 diagnostic trouble code indicates a problem with the 5-volt reference voltage being sent to the exhaust gas recirculation (EGR) valve. This can affect the EGR system’s operation. |
| P1475 | Auxiliary 5-volt output circuit is too high; it may set if voltage exceeds 5.7 volts for 5 seconds. Possible causes include short circuits or wiring issues. |
| P1476 | Leak detection pump malfunction, possibly requiring a new pump. |
| P1477 | Too Much Secondary Air Injected |
| P1478 | The P1478 code indicates that the battery temperature sensor signal is out of limits. |
| P1479 | Transmission Fan Relay Circuit |
| P1480 | PCV Solenoid Circuit Condition |
| P1481 | The P1481 code indicates a clutch fan speed sensor circuit malfunction, which affects the operation of the cooling fan. |
| P1482 | Cooling Fan Speed Output Circuit malfunction |
| P1483 | Engine Cooling System Performance |
| P1484 | Cooling Fan RPM Signal Malfunction |
| P1485 | EGRV Circuit Malfunction |
| P1486 | P1486 pertains to a pinched hose in the evaporative emission system. It indicates that the Powertrain Control Module (PCM) has detected a malfunction during system monitoring tests. |
| P1487 | EGR Boost Sensor Solenoid Valve Open or Short |
| P1488 | Auxiliary 5 Volt Supply Output Too Low. |
