Circuit/System Testing
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- 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 the panic button is pressed.
- If the tone does not sound and the green light does not illuminate, replace the transmitter.
- Verify the scan tool FOB Function parameter responds to the panic function on the transmitter.
- If it does not respond to the panic function, replace the RCDLR module.
- Verify that the headlamps pulse ON and OFF when the panic button is pressed.
- If they do not pulse ON and OFF, refer to Diagnostic Starting Point - Lighting Systems .
- Refer to Diagnostic Starting Point - Horns .