Injector Driver Module
WARNING:
Injector Driver Module (IDM) supplies 115 DC volts to all fuel injectors. DO NOT pierce injector wiring harness, severe electrical shock may occur.
The IDM interfaces with the Powertrain Control Module (PCM) to energize fuel injectors. IDM receives input signals from PCM for cylinder identification and Fuel Delivery Command Signal (FDCS). IDM controls injector firing sequence through output drivers. IDM has an output driver for each injector, one low side driver and one high side driver. Injector is pulsed when output driver completes a ground circuit. IDM is located in left side of engine compartment and has a 40-pin connector.
NOTE:
Components are grouped into 2 categories. The first category is INPUT DEVICES, covering components which control or produce voltage signals monitored by the PCM. The second category is OUTPUT SIGNALS , covering components controlled by the PCM.