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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1626 (Rear Drive Axle Differential - Vehicles With: Ford 9.75 Inch Ring Gear) >> Diagnosis And Testing >> Rear Drive Axle and Differential - Vehicles With: Electronic Limited-Slip Differential >> Pinpoint Tests >> Pinpoint Test E : DTCS P0745:12, P0745:13, P0745:19 >> Notes

Pinpoint Test E : DTCS P0745:12, P0745:13, P0745:19: Notes

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Wiring Diagram Four Wheel Drive Systems for schematic and connector information.

Normal Operation and Fault Conditions 

The eLSD system HCU pressure is control by pressure control valve which receives signal from DCMR as part of the normal system operation. Loss of this signal data causes the system to set a DTC.

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
P0745:12 Pressure Control Solenoid A: Circuit Short To Battery This DTC occurs when DCMR detects a short to voltage signal.
P0745:13 Pressure Control Solenoid A: Circuit Open This DTC occurs when DCMR detects a open circuit signal.
P0745:19 Pressure Control Solenoid A: Circuit Current Above Threshold This DTC occurs when DCMR detects a high current signal.

Hydraulic Control Unit Electrical Connectors 

GFD271198Courtesy of FORD MOTOR COMPANY
1. Hydraulic pump motor
2. Accumulator pressure sensor
3. Oil Temperature/pressure sensor
4. Pressure control valve

Possible Sources