Test B: The Control Illumination Is Always On - All Hardwired Illumination
PINPOINT TEST B: THE CONTROL ILLUMINATION IS ALWAYS ON - ALL HARDWIRED ILLUMINATIONNormal Operation
The smart junction box (SJB) then supplies a pulse-width modulated (PWM) voltage signal to the dimmable illumination sources on circuit VLN04 (VT/GY). Ground is provided through circuits GD111 (BK/BU), GD133 (BK), and GD147 (BK/VT).
DTC B2A32 (LED Backlighting Output Circuit Open) - is an on-demand DTC that sets when the SJB detects a short to voltage on the LED backlighting output circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- SJB
B1-B3:
