RX 330 AWD V6-3.3L (3MZ-FE) (2004)
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Horn Relay: Testing and Inspection
INSPECT HORN RELAY ASSY
a. Remove the horn relay from the engine room R/B No.2.
b. Inspect the horn relay resistance.
If the result is not as specified, replace the relay assy.
Lexus Workshop Service and Repair Manuals
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