Tundra 4WD V8-4.6L (1UR-FE) (2010)
Standard Voltage:
NG -- CHECK HARNESS AND CONNECTOR (RELAY BLOCK - ECM, IGNITION SWITCH, BATTERY AND BODY
GROUND)
OK -- REPLACE ECM See: Service and Repair/Removal
5. CHECK HARNESS AND CONNECTOR (RELAY BLOCK - ECM, IGNITION SWITCH, BATTERY AND BODY GROUND)
(a) Disconnect the ECM connector.
(b) Disconnect the ignition switch connector.
(c) Disconnect the cable from the battery positive (+) terminal.
(d) Remove the AM2 fuse and integration relay.