Check the passenger compartment panel under the dashboard for the main set of circuit holders. Locate each numbered slot and compare it with the printed labeling on the inside cover to identify its connected system.
Starter circuits and engine control relays are grouped on the left side, while lighting and climate control relays occupy the central slots. Confirm the amperage rating for each component to prevent overloads.
For auxiliary accessories, refer to the smaller under-hood panel. Identify each holder by tracing the wiring color codes from the main terminals to their connected devices such as headlights, horn, or power outlets.
Routine inspections should include verifying that all connectors are seated properly and free from corrosion. Loose terminals can cause intermittent failures, which often mimic more serious electrical faults.
When replacing components, always disconnect the battery and remove the panel cover carefully. Follow the slot numbering sequence to ensure that each circuit is reinstalled in the correct position.
PT Cruiser Electrical Panel Reference and Slot Guide
Locate the interior electrical panel beneath the dashboard and identify each numbered terminal. Slots 1–10 typically control power distribution for ignition, starter relay, and engine management circuits. Verify the color-coded wiring for each slot and ensure that all connections are fully seated to prevent intermittent faults.
Use the secondary under-hood panel for auxiliary systems such as headlights, horn, and climate control.
- Slot 11–15: lighting circuits
- Slot 16–20: accessory outlets and infotainment
- Slot 21–25: HVAC controls
Inspect each connection for corrosion and maintain correct amperage ratings to avoid component damage and electrical shorts.
Locating Each Circuit Slot and Its Connected Systems
Begin by accessing the main interior electrical panel behind the glove compartment. Slot 1–5 supply power to ignition modules, starter relays, and engine sensors. Ensure all terminals are clean and seated firmly to maintain stable current flow.
Slots 6–10 are designated for lighting circuits, including headlights, turn signals, and interior illumination. Inspect wiring harnesses for frays or discoloration that may indicate overheating or loose connections.
Slots 11–15 control accessory systems such as infotainment units, power outlets, and dashboard instruments. Confirm that each connection matches the labeled slot number to prevent short circuits.
The under-hood secondary panel covers slots 16–20 for climate control, cooling fans, and horn relay circuits. Verify amperage ratings on each terminal before replacing any components.
Slots 21–25 manage auxiliary systems including rear defrosters, wipers, and central locking. Check the routing of wires to avoid pinching against the chassis or engine components.
Slots 26–30 integrate sensors, auxiliary lighting, and emergency warning circuits. Use a test light or multimeter to confirm live circuits before performing maintenance or upgrades.
Always label each slot after inspection to simplify future troubleshooting. Maintaining a clear map of terminal assignments helps prevent misconnection and reduces the risk of electrical failures in both primary and secondary circuits.