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Power Door Lock Switch

NOTE: Use self-powered test light or ohmmeter to test power door lock switch. Some switches contain diodes. Reverse test leads during resistance checks before condemning switches.
  1. Remove door lock switch. With switch in released position, measure resistance between terminals No. 1 and 3 and between switch terminals No. 3 and 5. See Figure . If resistance is more than 10 k/ohms go to next step. If resistance is 10 k/ohms or less, replace switch.
  2. With switch in UNLOCK position, measure resistance between switch terminals No. 1 and 3. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, replace switch.
  3. With switch in LOCK position, measure resistance between switch terminals No. 3 and 5. If resistance is less than 5 ohms, switch is functioning properly. If resistance is 5 ohms or more, replace switch.
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