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Isuzu E-IDSS 2023 Diagnostic Software is designed for efficient diagnostics and repairs of Isuzu heavy machinery and trucks. It combines advanced technology with user-friendly features to facilitate accurate troubleshooting. The software supports a wide range of Isuzu models and enhances the repair process. Installation is straightforward and can be performed remotely via TeamViewer, ensuring quick setup for technicians.
Isuzu E-IDSS 2023 Diagnostic Software
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Cummins ISB CM550 (1990-94) Fault Code: 141-SW PID: 100 SPN: 100 FMI: 4 Oil Pressure Switch Circuit

Circuit Description
The oil pressure switch is used by the electronic control module (ECM) to monitor the
lubricating oil pressure.

Component Location
The oil pressure switch is located on the engine block, below and to the right of the ECM.

Shop Talk
1) If Fault Code 143 or 415 is not present, the problem is not related to the engine
lubrication system.
2) Your diagnostic tool can be used to monitor the oil pressure signal voltage going into the ECM.
3) If an oil pressure switch is installed, INSITE™ will read a constant value of 379 kPa [55
psi] ±2 kPa [±0.3 psi] if the ECM is reading a signal from the oil pressue switch.
4) The switch is a single wire device which requires engine block ground for operation.
5) Engine Protection will activate, if enabled, if the lubricating oil pressure drops below 41
kPa [6 psi] with the engine running.

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