The diagnosis for SPN 3588/FMI 4 is typically a short to ground. 112.2.1 Short Circuit Check Check as follows: 1. Disconnect the Ether Start connector…

SPN 3588/FMI 3 is typically a short to power. 112.1.1 Short to Power Check Check as follows: 1. Turn the ignition OFF. 2. Disconnect the…

This diagnosis is typically a ambient and inlet manifold pressure difference (High Box). 111.6.1 Air System Check Check as follows: 1. Inspect the entire air…

This diagnosis is typically a ambient and inlet manifold pressure difference (Low Box). 111.5.1 Air System Check Check as follows: 1. Inspect the entire air…

The typical diagnosis for this fault is an Intake Manifold Pressure Sensor open circuit. 111.4.1 Open Circuit Check Check as follows: 1. Disconnect the Intake…

The typical diagnosis for this fault is an Intake Manifold Pressure Sensor short circuit. 111.3.1 Short Circuit Check Check as follows: 1. Disconnect the Intake…

The typical diagnosis for this fault is the intake manifold pressure failed high. 111.2.1 Air Intake System Check Check as follows: 1. Inspect entire air…

The typical diagnosis for this fault is the intake manifold pressure failed high. 111.1.1 Air Intake System Check Check as follows: 1. Inspect entire air…

This diagnosis typically is Multiplexer 3, Channel 1 or 2 has a short or open circuit high. 109.1.1 Channel 1 Multiplexer 3 Channel 1, shorted…

The typical diagnosis for this fault is voltage low. 108.3.1 Low Voltage Check Check as follows: 1. Disconnect the Accelerator Pedal (AP) connector. 2. Disconnect…