Experiencing issues with your 2005 Dodge Stratus where the cruise control isn’t working and the check engine light is illuminated? You’re not alone. Many drivers encounter similar problems, often linked to underlying diagnostic trouble codes stored in the vehicle’s computer system. Let’s delve into a common scenario involving a 2005 Dodge Stratus and explore potential causes and solutions when your OBD2 system might seem unresponsive in certain functions like cruise control.
It’s a frequent observation that when the check engine light comes on, certain features in your car might be automatically disabled. Cruise control is a prime example of this safety measure. The vehicle’s computer is designed to prioritize safety and prevent potential damage, and disabling cruise control can be a precautionary step when certain malfunctions are detected.
In the case of a 2005 Dodge Stratus, issues with cruise control and the check engine light can often be traced back to specific diagnostic trouble codes. Let’s examine some codes that might be relevant and shed light on what they signify.
One reported code, P0572, points to a problem in the brake switch circuit #1, specifically indicating low voltage. The brake switch is a crucial component with multiple circuits that control various functions. Circuit #1 is responsible for signaling when the brake pedal is depressed, which is essential for the automatic transmission’s torque converter clutch lockup system.
A low voltage reading in circuit #1, as indicated by code P0572, could stem from excessive resistance within the circuit. To understand this better, let’s look at the wiring diagram of the brake switch system:
This diagram illustrates the intricate wiring of the brake switch, showing circuit #1, circuit #2 (for cruise control), and circuit #3 (for brake lights), along with the ground circuit. When the brake pedal is released, and the brake switch plunger is pushed inwards, circuits #1 and #2 should be closed and have continuity, while circuit #3 remains open. Code P0572 suggests a disruption in this expected electrical flow in circuit #1.
Beyond the brake switch issue flagged by P0572, other codes related to the transmission can also surface. Codes P0218 and P0714 are examples of transmission-related diagnostic codes that could appear in a 2005 Dodge Stratus.
Code P0218 indicates “Transmission Fluid Over Temperature.” This suggests that the transmission fluid is either genuinely overheating or there’s a malfunction with the fluid temperature sensor providing inaccurate readings. Overheated transmission fluid can lead to significant damage if not addressed promptly.
Code P0714 points to a “Transmission Fluid Temperature Sensor Circuit Intermittent” issue. This code suggests an inconsistent or unreliable signal from the transmission fluid temperature sensor circuit. This problem could be due to a faulty sensor itself or wiring issues between the sensor and the Powertrain Control Module (PCM). An intermittent circuit problem can trigger code P0714.
It’s important to note that while resetting the computer might temporarily clear these codes, they are likely to reappear if the underlying issues are not resolved. Addressing the root causes of codes P0572, P0218, and P0714 is crucial for restoring the proper functionality of your 2005 Dodge Stratus, including cruise control, and ensuring the longevity of your transmission.
If you are experiencing these issues, it’s recommended to consult a qualified mechanic to diagnose and repair the problems accurately. Attempting DIY repairs without proper knowledge and tools can potentially worsen the situation. A professional technician can accurately pinpoint the source of the electrical or sensor malfunctions and perform the necessary repairs to get your Dodge Stratus back in optimal working condition.
