Test A: No Power in All Ignition Switch Positions
Pinpoint Test A: No Power in All Ignition Switch PositionsRefer to Wiring Diagrams Vehicle/Diagrams, Power Distribution/SJB for schematic and connector information.
Normal Operation
The ignition switch receives fused battery voltage from bussed electrical center (BEC) fuse 68 (20A) along circuit 1050 (LG/VT), this voltage is then sent to the smart junction box (SJB) for various systems depending on the ignition switch position. The ignition switch has 4 possible positions:
^ OFF, there is no voltage sent to the SJB, but voltage is sent to the instrument cluster for the key-in ignition system. Refer to Instrument Panel, Gauges and Warning Indicators to diagnose any key-in ignition concerns.
^ ACC, the voltage is sent to the SJB along circuit 1002 (PK/BK).
^ RUN, the voltage is sent to the SJB along circuit 1044 (WH/YE).
^ START, the voltage is sent to the SJB along circuit 1522 (DG).
This pinpoint test is intended to diagnose the following:
^ Fuse(s)
^ Wiring, terminals or connectors
^ Ignition switch
^ BEC
^ SJB