* ABS Sensor Wire: The Anti-lock Braking System (ABS) uses sensors located near the wheels to monitor wheel speed. These sensors have wires running through the wheel well and are prone to damage from road debris and flexing. A broken wire here would likely trigger an ABS warning light on your dashboard.
* Speed Sensor Wire: Similar to the ABS sensor, a wheel speed sensor is used for the vehicle's speedometer and potentially traction control. Damage to this wire would affect speedometer accuracy and possibly traction control.
* Parking Brake Wire: Some parking brake systems have electrical components, and wiring could run through the wheel well. A break here could affect the parking brake function, often causing a warning light.
* Other Sensors: Depending on the trim level and options, other sensors might have wires running through the wheel well, such as a tire pressure monitoring system (TPMS) sensor.
* Wiring Harness for Lights: Though less likely, it's possible the wire is part of a larger harness for taillights, turn signals, or other exterior lighting. Damage here could cause lighting malfunctions.
To find out for sure:
1. Locate the broken wire: Trace the wire to see where it connects. This is the most crucial step.
2. Check your owner's manual: See if it has wiring diagrams or mentions common issues with wiring near the wheels.
3. Consult a repair manual: A repair manual for your specific PT Cruiser year and model will have detailed wiring diagrams.
4. Use a multimeter: If you're comfortable with basic electrical testing, a multimeter can help identify the wire's function.
5. Take it to a mechanic: This is often the easiest solution. A mechanic will be able to quickly identify the broken wire and repair it properly.
Do not attempt to repair electrical wiring unless you have experience doing so. Incorrect repair can lead to further damage or safety hazards.
