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Switch Test

WARNING: This page is about a different car, the 2002 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
  1. Release shorting spring on passenger-side air bag cut-off switch connector. See RELEASING SHORTING SPRING  under DIAGNOSTICS. Turn switch to ON position. Check for continuity between switch terminals No. 1 and 2. See Fig 1. Continuity should exist. Check for continuity between switch terminals No. 3 and 4. Continuity should exist. Check for continuity between switch terminals No. 2 and 3. Continuity should not exist. Check for continuity between switch terminals No. 5 and 6. Continuity should not exist.
  2. Turn switch to OFF position. Check for continuity between switch terminals No. 1 and 2 and between No. 5 and 6. Continuity should exist. Check for continuity between switch terminals No. 3 and 4. Continuity should not exist. Measure resistance between switch terminals No. 2 and 3. Resistance should be 2.42-2.45 ohms. If continuity and resistance is not as specified, replace switch.
Fig 1: Identifying Passenger-side Air Bag Cut-off Switch Terminals
G99G20483Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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