Cars · Wiring

A/C Thermostat Switch Bypass

Guide for jumping the A/C thermostat switch during A/C system troubleshooting or installation.

Beginner 5

If you need to bypass the A/C thermostat switch, follow these steps to jump the appropriate connections.


Under-Dash Procedure

Locate the 2-pin connector wrapped in blue tape, situated near the heater blower unit under the dashboard.

  • Wiring Colors: Blue/Red and Yellow/White.

Under-Hood Procedure

Locate the A/C sub-harness connector on the passenger side of the engine bay. Jump the Blue/Red wire to the Yellow/White wire to complete the circuit.


Note: This procedure is intended for troubleshooting purposes or during specific A/C installation scenarios.

Applies to

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