System Operation Description: The Electronic Control Module (ECM) is the computer that controls the Caterpillar engine. The personality module contains the software that controls the…

System Operation Description: The digital sensor supply provides power to all digital sensors. The coolant level sensor and the auxiliary temperature sensor are digital sensors.…

System Operation Description: The diagnostic lamp is used to inform the operator of diagnostic codes or event codes that are active. Illustration 1 g01080816 Schematic…

System Operation Description: The coolant level sensor provides a means of monitoring the engine coolant level in order to warn the operator in the event…

System Operation Description: Note: This procedure checks for an open circuit or for a short circuit in the Cat Data Link. If you are experiencing…

System Operation Description: The test steps that are described in this test can help solve the following problems. Faulty connectors Terminating resistors Short circuits Open…

System Operation Description: The digital sensors receive a regulated voltage supply of 8 ± 0.4 VDC from the Electronic Control Module (ECM). Note: Refer to…

System Operation Description: The Electronic Control Module (ECM) has the ability to stop the engine by shutting off the inlet air supply in an emergency…

System Operation Description: The Electronic Control Module (ECM) supplies a regulated voltage of 5.0 ± 0.5 VDC to the following sensors: Atmospheric pressure sensor Auxiliary…

Conditions Which Generate This Code: The following conditions occur: 445-1 The engine has been running for three minutes. There are no active diagnostic codes for…