Component Description

Instrument Panel Cluster (IPC)

Component Description

Park Position Detect Switch

The park position detect switch is hardwired to the IPC (Instrument Panel Cluster) through a single signal circuit. The park position detect switch is hardwired to a separate ground circuit through the selector lever. The IPC (Instrument Panel Cluster) provides a reference voltage to the park position detect switch. When the selector lever is in PARK (P), the park position detect switch opens to ground sending the reference voltage high. When the selector lever is moved out of PARK (P), the park position detect switch routes the reference voltage to ground, pulling the circuit low to the IPC (Instrument Panel Cluster).

Low Washer Fluid Level Sensor

The low washer fluid level sensor is hardwired to the BCM (Body Control Module) through a single signal circuit and hardwired to ground through a separate ground circuit. The BCM (Body Control Module) provides a reference voltage to the low washer fluid level sensor. When the washer fluid level is low, the low washer fluid level sensor closes to ground, pulling the reference voltage low. When the washer fluid level is high, the low washer fluid level sensor opens to ground, sending the reference voltage high.

Brake Fluid Level Switch

The brake fluid level switch is a reed type switch that is mounted in the master cylinder reservoir. The brake fluid level switch is hardwired to the BCM (Body Control Module) through a signal circuit and grounded through a separate body ground circuit. The BCM (Body Control Module) provides a reference voltage to the brake fluid level switch. When the brake fluid level is low, the float drops allowing the reed switch to open, sending the reference voltage high. When the brake fluid level is high, the float lifts, closing the switch contacts, providing a ground and pulling the reference voltage low on the signal circuit to the BCM (Body Control Module).

Fuel Level Sender

The fuel level sender is mounted to the fuel pump assembly. As the fuel level changes, the float rises or falls with the fuel level moving the sweep arm across the resistor wires. This movement either increases or decreases the resistance through the unit. The fuel level sensor resistance ranges between 464 ohms ± 4 ohms at empty (E) and 51 ohms ± 2 ohms at full (F). When the fuel level is low, the fuel level sensor resistance is high. When the fuel level is high, the fuel level resistance is low.
The fuel pump assembly is hardwired to the BCM (Body Control Module) through separate signal and return circuits. The fuel level return circuits are grounded internally in the BCM (Body Control Module). The BCM (Body Control Module) provides a reference voltage on the fuel level signal circuit. As the fuel level changes, the change in resistance raises or lowers the fuel level signal voltage depending on the resistance of the fuel level sender.

Instrument Panel Cluster (IPC)

The IPC (Instrument Panel Cluster) provides the driver with a system status and alerts the driver when certain conditions exist in the vehicle. The IPC (Instrument Panel Cluster) requires PMI (Programmable Module Installation) when the IPC (Instrument Panel Cluster) is replaced.