Tundra 2WD V8-4.6L (1UR-FE) (2010)
(1) Measure the resistance according to the value(s) in the table below.
Standard resistance:
(2) If the result is not as specified, replace the HORN fuse.
(b) Measure the resistance of the horn relay circuit.
(1) Measure the resistance according to the value(s) in the table below.
Standard resistance:
(2) If the result is not as specified, replace the integration relay.
4. INSTALL INTEGRATION RELAY (UNIT E)
(a) Connect the 3 connectors.
(b) Install the integration relay to the engine room relay block.
(c) Install the engine room relay block cover.
5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
NOTICE:
Some systems need to be initialized after the cable is reconnected See: Testing and Inspection/Programming and Relearning