Experiencing issues with your 2005 Dodge Stratus and the check engine light is on? You’re not alone. Many owners encounter situations where they try to use an OBD2 scanner to understand what’s going on, only to find themselves facing further questions. Let’s delve into some common diagnostic scenarios for the 2005 Dodge Stratus, particularly when you’re seeing a check engine light and potentially struggling to get clear readings from your OBD2 port.
One common concern is whether a check engine light can impact other vehicle systems. For instance, you might find that features like cruise control become disabled when the check engine light illuminates. This is often a safety measure implemented by the vehicle’s computer. In many cars, including the 2005 Dodge Stratus, certain diagnostic trouble codes (DTCs) will indeed deactivate the cruise control system. This deactivation is usually temporary, and the cruise control might function normally again after restarting the engine, provided the error is not persistent. However, if the issue relates to critical safety components like the brake switch, the cruise control will remain disabled until the underlying problem is resolved and the code is cleared.
Let’s look at some specific diagnostic codes that might appear in your 2005 Dodge Stratus and how they relate to potential OBD2 readings and system functionality.
You might encounter codes such as P0218 and P0714, which are transmission related. Code P0218 signals “Transmission Fluid Overtemperature.” This indicates that the transmission fluid is getting excessively hot, or there might be a problem with the transmission fluid temperature sensor itself. Code P0714, “Transmission Fluid Temperature Sensor Circuit Intermittent,” points directly to a potential fault in the temperature sensor circuit. This could stem from a failing sensor or wiring issues between the sensor and the Powertrain Control Module (PCM). An intermittent circuit problem could be the culprit behind code P0714.
Another crucial code to understand, especially concerning cruise control and potentially OBD2 system interactions, is P0572. This code, “Brake Switch Input Circuit Low,” indicates a low voltage issue in brake switch circuit #1. It’s important to know that the brake switch in your 2005 Dodge Stratus actually incorporates three separate circuits.
- Circuit #1: This circuit is crucial for the automatic transmission’s torque converter clutch lockup and also signals when the brake pedal is depressed.
- Circuit #2: This circuit provides power to the cruise control solenoid vacuum valves.
- Circuit #3: This circuit is responsible for activating the rear stop lamps (brake lights).
When the brake pedal is released, and the brake switch plunger is in its resting position, circuits #1 and #2 should be closed, showing continuity. Circuit #3 should be open. Code P0572 suggests low voltage in circuit #1, which could be due to excessive resistance within the circuit. Understanding the wiring is key to diagnosing this issue.
Alt text: Wiring diagram illustrating the three circuits of a 2005 Dodge Stratus brake light switch, highlighting circuit numbers 1, 2, and 3, and their connections to ground and other vehicle systems.
By understanding these codes and the systems they relate to, you can better approach diagnosing why your 2005 Dodge Stratus might be showing a check engine light and potentially exhibiting issues with OBD2 readings or related functions like cruise control. Remember to always consult a qualified mechanic for accurate diagnosis and repair of any automotive issues.
