Install High-Current Fan Relay
At 9:39 in
Logan Learns How To Wire Relays! LSA Monte Carlo & Turbo Escalade Test Drive
What happens here
The Monte Carlo uses a high-amperage 97 Thunderbird fan, which overloads the existing small relay in the standalone harness. A new, larger relay is needed. The presenter explains that a relay uses a small electrical signal to trigger a larger current path, preventing damage to sensitive components. He demonstrates connecting the fan's power wire to the output of the new relay and connecting the original harness's fan signal wire to the new relay's trigger input. The large 12V constant power for the fan will come directly from the battery terminal, ensuring enough power and bypassing the harness's smaller capacity.
Goal: Provide sufficient power for the high-amperage fan and protect the original harness.
Tools and materials
- Battery terminal lug — Connecting large gauge wire to battery
- Crimping tool — Crimping terminals
- High-current relay — Supplying power to the fan
- Wire — Connecting relay to battery
- Wire cutters — Cutting wires
- Wire strippers — Stripping wire insulation
What they say
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What they say
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