Lincoln Corsair: Rear Electric Drive Assembly / Description and Operation - Rear Electric Drive Assembly - Overview
Overview
The center of the electric motor control system is a microprocessor called the Secondary Inverter System Controller (S-ISC), also known as the SOBDMB . The Secondary Inverter System Controller (S-ISC) receives inputs from sensors and other electronic components. Based on information received and programmed into its memory, the Secondary Inverter System Controller (S-ISC) generates output signals to control the secondary electric drive (electric All Wheel Drive) and the auxiliary cooling pump.
The Secondary Inverter System Controller (S-ISC) can only power-up if the primary ISC powers-up and closes its power-sustain relay (PSR).
Some failure modes require a complete power-down and restart of the Secondary Inverter System Controller (S-ISC) to recover. To ensure a complete module power-down, you must wait several minutes after key-off, or monitor the Secondary Inverter System Controller (S-ISC) communication to determine if the module has completely shut down.
DTC s referring to the "generator" were used for the Secondary ISC. The primary ISC operates both a motor and a different generator. These electric machines operate largely in the same manner despite the different naming convention.
Description and Operation - Rear Electric Drive Assembly - System Operation and Component Description
System Operation
System Diagram
E370042
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1
TCM private CAN
2
Resolver
3
Front
Electric
Drive
Assembly
4
ISC
SOBDMC
5
GSM
6
PCM
7
S-ISC
SOBDM-B
8
Secondary
Resolver
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Other information:
Lincoln Corsair 2020-2025 Service Manual: Diagnosis and Testing - Steering Wheel and Column Electrical Components
Diagnostic Trouble Code (DTC) Chart Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation). Diagnostic Trouble Code Chart Module DTC Description Action BCM B108A..
Lincoln Corsair 2020-2025 Service Manual: General Procedures - Piston Protrusion Check
Special Tool(s) / General Equipment Dial Indicator Check Verify that the cylinder block deck surface and the pistons are clean. The piston protrusion is measured in-line front and rear avoiding raised or etched marking. NOTE: Use a commercially available deck bridge such as the Proform® 66797 Magnetic Deck Bridge or equivalent. ..
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