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Component Testing

WARNING: This page is about a different car, the 2010 Buick LaCrosse. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness at the S38 ignition mode switch.
  2. Place a jumper wire between ignition mode switch terminal 4 and ground.
  3. Place a fused jumper wire between the circuit terminals of the ignition mode switch listed below and B+:
    • Ignition mode switch terminal 2
    • Ignition mode switch terminal 5
    • If either LED does not light, replace the S38 ignition mode switch.
  4. Without the button pressed, test for 4,870 Ω between the ignition mode switch terminals listed below:
    • Ignition mode switch terminals 3 and 7
    • Ignition mode switch terminals 4 and 6
    • If not the specified value, replace the S38 ignition mode switch.
  5. With the button pressed, test for 1,300 Ω between the ignition mode switch terminals listed below:
    • Ignition mode switch terminals 3 and 7
    • Ignition mode switch terminals 4 and 6
    • If not the specified value, replace the S38 ignition mode switch.
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