2007 Honda Civic A/C and Heater Wiring by Variant
Choose the trim, body style, and transmission listed for your car. The checked non-Hybrid and Hybrid archives use different A/C circuit references.
Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Choose a non-Hybrid Civic
The 15 checked DX, LX, EX, Si, and GX trim entries link to an “Air Conditioning (Except Hybrid)” circuit leaf. The visible figure is labeled “Heating/Air Conditioning Circuit Diagram (1 Of 2).” This page does not claim the hosted leaf is the complete two-part schematic. Confirm the VIN, equipment, and full manual before diagnosing a wire or connector.
DX - 4 manual entries
LX - 4 manual entries
EX - 4 manual entries
Si - 2 manual entries
GX - 1 manual entry
Civic Hybrid A/C circuit
The checked Civic Hybrid quick-lookup leaf shows “Automatic A/C Circuit, Hybrid (1 of 2).” Use the Hybrid source only for a matching Hybrid vehicle, and check the full manual for the remaining circuit information.
Why the quick lookup is not the non-Hybrid answer
The generic “Air Conditioning” quick lookup displays the Hybrid figure even when opened from the checked DX, LX, EX, GX, or Si trim archives. The links above instead use each non-Hybrid trim's own HVAC control-system section. Separate engine-only archive entries were not verified at that exact path and are not treated as interchangeable.
Testing the circuit
Use the selected manual's tests and connector information when tracing power, ground, control, and motor faults. A meter and suitable leads can help verify a circuit; this page has not established a vehicle-specific part to replace.
Search automotive meters and test leads on AmazonAffiliate disclosure: AllOEMManuals may earn from qualifying purchases.