Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLINCOLN2006NAVIGATOR 4WD V8-5.4L VIN 5REPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLETESTING AND INSPECTIONDIAGNOSTIC TROUBLE CODE TESTS AND ASSOCIATED PROCEDURES4R70W/4R75W AUTOMATIC TRANSMISSION
2006 Lincoln Navigator 4WD V8-5.4L VIN 5
4R70W/4R75W Automatic Transmission
2006 Lincoln Navigator 4WD V8-5.4L VIN 5SECTION 4R70W/4R75W Automatic Transmission
Diagnostic Trouble Code Charts
Diagnostic Trouble Code Chart
Rotunda Transmission Tester
The Rotunda Transmission Tester is used to diagnose the digital transmission range sensor and is used in conjunction with the pinpoint tests. The tests should be carried out in order. Installing the Rotunda Transmission Tester allows separation of the vehicle electronics from transmission electronics. For additional information, refer to the Rotunda Transmission Tester manual for these tests.
^ Digital Transmission Range (TR) Sensor Testing
^ Resistance/Continuity Test
^ Voltage Test - PARK/NEUTRAL, REVERSE Lamp and Optional Circuits
P0102-P0103, P1100-P1101, P0112-P0114, P0117-P0118, P0122-P0123, P1120:
P0300-P0308,P0320,P0340,P1351-P1364,P1702,P1704,P0705,P0708,P1705,P1715, P0717:
P0718,P0720,P0721,P0722,P0731,P0732:
P0733,P0734,P0741,P0743:
P0750,P0753,P0755,P0758,P1714,P1715:
P0781,P0782,P0783,P116:
P1124,P1460,P1636,P1703,P0713,P1711:
P0712,P1713,P1783,P1718,P0740,P1740,P1741,P1742,P1743:
P1744,P1746,P0960,P1747,P0962,P1760,P1780,P1781,P0963,P0948:
P1729,P1728,P0500,P0503,P1502,U1039,:
Diagnostic Trouble Code Chart
Rotunda Transmission Tester
The Rotunda Transmission Tester is used to diagnose the digital transmission range sensor and is used in conjunction with the pinpoint tests. The tests should be carried out in order. Installing the Rotunda Transmission Tester allows separation of the vehicle electronics from transmission electronics. For additional information, refer to the Rotunda Transmission Tester manual for these tests.
^ Digital Transmission Range (TR) Sensor Testing
^ Resistance/Continuity Test
^ Voltage Test - PARK/NEUTRAL, REVERSE Lamp and Optional Circuits
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.