929 V6-3.0L DOHC (1993)
Voltage Signal: Description and Operation
Electrical Load Signals
PURPOSE
When certain electrical loads are detected by the PCME, it modifies the duty signal to the idle speed control (ISC) valve as needed to maintain
correct idle speed.
OPERATION
Electrical load signals (component "ON") are sent to the ECU from the headlight, rear window defroster, fog light, and blower motor switches.