DC - Injection Control Pressure (ICP) Sensor

Signal Functions
The Injection Control Pressure (ICP) sensor is a variable capacitance sensor that, when supplied with a 5-volts reference signal from the Powertrain Control Module (PCM), produces a linear analog voltage signal that indicates pressure.

The ICP sensor's primary function is to provide a feedback signal to indicate rail pressure so that the PCM can command the correct injector timing and pulse width and the correct injection control pressure for proper fuel delivery at all speed and load conditions.

Detection/Management
If the PCM detects a malfunctioning ICP sensor (sensor out of range high or low), the CHECK ENGINE light is illuminated and the PCM will go to open loop control of injection control pressure. (Operate from an estimated injection control pressure.)











Note
After removing connector, check for damaged pins, corrosion, loose terminals, etc.

DTC Descriptions
P1210 = ICP excessive at key on
P1212 = ICP voltage not at expected level
P1280 = ICP circuit out of range low
P1281 = ICP circuit out of range high
P1284 = ICP failure - aborts KOER cylinder Contribution Self Test

DC1 - DC2:

DC3 - DC8:

DC9 - DC13:

DC14 - DC17:

DC18 - DC22:

DC23 - DC25: