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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: 528 PID: 93 SPN: 93 FMI: 2 Alternate (Switched) Torque Curve Switch Circuit

Circuit Description
The torque curve switch circuit allows the operator to select from up to three preprogrammed
torque curves using a two- or three-position switch depending on which curve the original
equipment manufacturer (OEM) has provided.

Component Location
The location of the torque curve switch circuit varies with each OEM and equipment model.
Refer to the OEM manual.

Shop Talk
The switch should be monitored for proper operation in INSITE™. If the switch is changing
state correctly on the service tool, then the problem does not lie in the switch circuit. The
three-position switch has three states:

1) Position 1 – open
2) Position 2 – closed
3) Position 3 – 1500-ohm resistance.

The two-position switch has two states:
1) Position 1 – open
2) Position 2 – closed.

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