Tundra 2WD V6-4.0L (1GR-FE) (2005)
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w/o Daytime running light:
CHECK INTEGRATION RELAY (DRIVER SIDE J/B) CIRCUIT
a. Disconnect the 1H, 1I, 1K, 1J and 1L driver side J/B connectors, and check the voltage or continuity of each terminal of the wire harness side
connectors.
If the result is not as specified, there may be a malfunction on the wire harness side.
b. Reconnect the 1H, 1I, 1K, 1J and 1N driver side J/B connectors, and check the voltage of each terminal of the connectors.
If the result is not as specified, the integration relay (driver side J/B) may malfunction.
c. Remove the integration relay from the driver side J/B, and check the voltage or continuity of each terminal on the driver side J/B side.