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Re: reading and interpreting wiring diagram
Posted to Technical Discussion Forum on 9/17/2015

The heater control circuits are pins 3 (B1S1) and 4 (B2S1) in connector E5 at the ECM.

The ECM connector view has been shared here: [2002 Toyota Avalon XL, ECM/Inputs/Outputs Drawing] Login to read more.

Files Referenced:

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