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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 PCM to energize fuel injectors. IDM receives 2 digital control signals from PCM: camshaft position signal (for cylinder identification) and Fuel Delivery Command Signal (FDCS). FDCS is used by IDM to control injection timing and duration. CMP signal provides synchronization to engine's first and fifth injector (firing order, cylinders No. 1 and 4). IDM also verifies that FDCS and CMP occur at valid timing intervals for synchronization. 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 PCM. The second category is OUTPUT DEVICES , covering components controlled by PCM.
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