Mass Air Flow Ait Wires Question (2003 Es300)

[scratchmonkey]

Trying to determine which wires on the MAF sensor are the Air Intake Temp wires.

Here what I do know about the five wires:

Pin1: +B (B-W wire) goes to CCV on the ECM through the VSV for Canister Closed Valve

Pin2: E2G (L-W wire) goes to E2G on the ECM

Pin3: VG (R wire) goes to VG on the ECM

Pin4: THA (L-B wire) goes to THA on the ECM

Pin5: E2 (BR wire) goes to E2 on the ECM

I'm trying to determine which two wires to connect an X2 chip to to modify the output of the AIT.

My schematic legend says that THA-E2 are for engine idling and intake air temp, so would I be correct in connecting to L-B and BR? Any input would be greatly appreciated.

[scratchmonkey]

Guess maybe it's a mystery... Anybody have any suggestions on who I could ask that may know whether my guess is correct or completely off the mark?