Natural Gas Vehicle (NGV) Module.

The NGV module assembly:

• Consists of a 90-pin module and a bracket and four retainers.
• Houses the unique electronics required for natural gas fuel systems.
• Is located on the LH inner fender.

The NGV module carries out the following functions:

• Injector drivers: the NGV module accepts eight unmodified injector signals from the powertrain control module (PCM) and allows a peak-and-sustain current to flow through the injector solenoids.
• Fuel gauge driver: the NGV module uses fuel tank temperature and fuel tank pressure inputs to calculate the density of the fuel. A look-up table is used to determine the output signal to the fuel gauge.