Understanding your Chrysler’s fault codes is crucial for effective vehicle maintenance and repair. While modern vehicles primarily utilize OBD2 systems, older Chrysler models employ OBD1. This guide focuses on providing a comprehensive understanding of Chrysler fault codes, bridging the gap between OBD1 and OBD2 systems to equip you with the knowledge needed to diagnose and address issues in your vehicle.
Accessing OBD1 Chrysler Fault Codes
For Chrysler vehicles predating the widespread adoption of OBD2, accessing fault codes requires a specific procedure using the ignition switch. This method utilizes the Malfunction Indicator Lamp (MIL), commonly known as the “Check Engine” light, to communicate diagnostic information.
To initiate the self-diagnostic mode and retrieve OBD1 codes, follow these steps:
- Turn the ignition switch from the OFF position to the ON position.
- Cycle the ignition switch between ON and OFF three times, starting and ending in the ON position. This cycling must be completed within 5 seconds.
After performing this sequence correctly, the Check Engine light will begin to flash, indicating fault codes. These codes are communicated through a series of flashes, with long flashes representing tens and short flashes representing units. By counting the flashes, you can decipher the numeric code corresponding to a specific fault.
Decoding OBD1 Chrysler Fault Codes
The following table outlines common OBD1 fault codes for Chrysler vehicles and their corresponding descriptions:
| Code | Description |
|---|---|
| 11 | No distributor signal to PCM |
| 12 | Battery disconnected within last 50 starts |
| 13 | MAP sensor pneumatic circuit fault |
| 14 | MAP sensor voltage too high or too low |
| 15 | No vehicle speed sensor signal |
| 16 | Battery voltage direct to PCM or knock sensor circuit fault |
| 17 | Engine cold for too long |
| 21 | Oxygen sensor signal indicates lean condition |
| 22 | Coolant temperature sensor voltage too high or too low |
| 23 | Intake air temperature sensor voltage too high or too low |
| 24 | Throttle position sensor voltage too high or too low |
| 25 | Idle air control valve problem, target idle speed not reached |
| 26 | Injector circuit peak current not achieved |
| 27 | Injector circuit fault, no injector driver signal |
| 31 | Purge solenoid circuit fault |
| 32 | EGR valve solenoid circuit fault |
| 33 | A/C relay circuit fault |
| 34 | Vacuum solenoid circuit fault |
| 35 | Radiator fan relay circuit fault |
| 36 | Turbo wastegate solenoid circuit fault |
| 37 | Torque converter clutch solenoid circuit fault |
| 41 | Alternator field control circuit fault |
| 42 | Auto shutdown relay control circuit fault |
| 43 | Ignition coil driver circuit fault |
| 44 | Battery temperature sensor voltage too high or too low |
| 45 | |
| 46 | Battery voltage too high |
| 47 | Battery voltage too low |
| 51 | Fuel mixture lean |
| 52 | Fuel mixture rich |
| 53 | PCM internal fault, system voltage high |
| 54 | Camshaft sensor signal lost |
| 55 | End of codes |
| 56 | |
| 57 | |
| 61 | Baro-read solenoid circuit fault |
It’s important to note that some codes in the table are blank (45, 56, 57). This is because OBD1 systems were less standardized than OBD2, and code assignments could vary slightly between model years and specific Chrysler vehicles. Always consult a Chrysler-specific repair manual for the most accurate code definitions for your particular vehicle.
Understanding the Evolution to OBD2 “Codigos de Falla OBD2 Chrysler”
While this guide primarily addresses OBD1 codes, the principles of fault code diagnostics laid the groundwork for the standardized OBD2 systems prevalent in vehicles today. OBD2 (On-Board Diagnostics II) offers a more sophisticated and universally compatible system for monitoring vehicle performance and emissions.
“Codigos De Falla Obd2 Chrysler” refers directly to the OBD2 fault codes in Spanish, highlighting the importance of understanding these codes for modern Chrysler vehicles. OBD2 systems provide a wealth of information beyond basic fault codes, including live data streams from sensors, freeze frame data capturing conditions when a fault occurs, and the ability to clear codes after repairs are made.
To access OBD2 “codigos de falla Chrysler”, you will need an OBD2 scan tool. These tools connect to your vehicle’s diagnostic port, typically located under the dashboard, and allow you to read and interpret fault codes, as well as access other diagnostic information.
Conclusion: Leveraging Fault Code Knowledge for Chrysler Vehicle Maintenance
Whether you are dealing with an older Chrysler vehicle utilizing OBD1 or a newer model with OBD2, understanding fault codes is essential for effective vehicle maintenance. This guide provides a starting point for interpreting both OBD1 and the concept of OBD2 “codigos de falla chrysler”.
For OBD1 systems, the ignition key cycling method provides a basic way to retrieve fault codes. For modern OBD2 systems, utilizing an OBD2 scan tool is necessary to access the more detailed diagnostic information available. By understanding these systems and the fault codes they generate, you can proactively address vehicle issues, ensuring optimal performance and longevity for your Chrysler. Remember to always consult a repair manual specific to your vehicle for the most accurate diagnostic and repair procedures.
