On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. REMOVE INTEGRATION RELAY (a) Remove the engine room relay block cover.
(c) Disconnect the 3 connectors. 2. INSPECT INTEGRATION RELAY (IG2) NOTICE:
![]() (a) Measure the resistance of the IG2 MAIN fuse. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the IG2 MAIN fuse.
3. INSTALL INTEGRATION RELAY (a) Connect the 3 connectors. (b) Install the integration relay to the engine room relay block. (c) Install the engine room relay block cover. |
Toyota Tundra Service Manual > How To Troubleshoot Ecu Controlled Systems: General Information
GENERAL INFORMATION A large number of ECU controlled systems are used in the TOYOTA TUNDRA. In general, ECU controlled systems are considered to be very intricate, requiring a high level of technical knowledge to troubleshoot. However, most problem checking procedures only involve inspecting the ECU ...