Toyota Tundra 2001 Code P1127 | ETCS Actuator Power Source Circuit Malfunction ECM FIX!

Steps: DISCONNECT THE BATTERY!
After you checked fuses then procced with below.
1. Remove the left side foot panel to access the connectors and all wires.
2. Look for the connector with the green corrosion and green discoloration
3. Disconnect the connector.
4. Look at the white with silver and green line wire on both connectors.
5. That wire is your power to the ECM unit.
6. If the pin is missing, remove that wire and install jumper wire like i did.
7. Solder and jumper wire like you see.
8. Use heat shrink to secure the wire.
9. Put everything back together.
10. Install the battery cable.
turn on Truck that should clear all codes and gad peddle is back to normal!
To be more complete, P1127 is "ETCS Actuator Power Source Circuit Malfunction". Meaning the voltage to the ECM from the ETCS fuse is coming and going and is below 9-12vdc periodically.
This is the FIX most of the time after you checked Fuses!

[@John_does_is300]

I have a 1127 on my sequoia but I can't find that connector

[@thevintageaudiolife]

The connector is there, maybe under the carpet, or maybe they ran the cable/wires along another path. Might want to check the wiring diagram for the year/model. Good luck hope u find it.