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Home >> Chevrolet >> 2006 >> Uplander Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 186 (Keyless Entry System) >> Diagnostic Information and Procedures >> DTC B3105 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that the transmitter being used is a correct transmitter for the vehicle. ? If not the correct transmitter, replace the transmitter.
  2. Place the transmitter on the test pad of the J 43241 and press each button of the transmitter one at a time. The tester should sound a tone and illuminate a green light when each button is pressed. ? If any of the buttons do not sound the tone and illuminate the green light, replace the transmitter battery. Retest with the J 43241 . If the transmitter continues to malfunction, replace the affected transmitter.
  3. Verify the scan tool Fob Programmed parameter for the transmitter being used is Yes. ? If not the specified value, program the applicable transmitter.
  4. Press each transmitter button. Verify the scan tool Fob Function parameter for the transmitter being used responds to each button press. ? If the parameter does not respond, test the keyless entry antenna for an open/high resistance. If all circuits test normal, replace the RCDLR.
  5. If all circuits test normal, test or replace the RCDLR.
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