Navigator 4WD V8-5.4L (2010)
-
Disconnect the scan tool cable from the DLC.
-
Inspect DLC pins 4, 5 and 16 for damage.
-
Are DLC pins 4, 5 and 16 OK?
Yes
GO to Z2.
No
REPAIR the DLC as necessary. CLEAR the DTCs. REPEAT the network test with the scan tool.
-------------------------------------------------
Z2 CHECK THE DLC VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
-
Measure the voltage between the DLC C251-16, circuit SBP20 (GN/RD), harness side and ground.
-
Is the voltage greater than 10 volts?
Yes
GO to Z3.
No
VERIFY the Smart Junction Box (SJB) fuse 20 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams to identify the
possible causes of the circuit short. REPEAT the network test with the scan tool. See: Diagrams/Electrical Diagrams/Diagrams By Number
-------------------------------------------------
Z3 CHECK THE DLC GROUND CIRCUITS FOR AN OPEN
-
Ignition OFF.
-
Disconnect: Negative Battery Cable.
-
Measure the resistance between the DLC C251-4, circuit GD138 (BK/WH), harness side and ground; and between the DLC C251-5, circuit
GD113 (BK/YE), harness side and ground.
-
Are the resistances less than 5 ohms?
Yes
REPAIR the scan tool. CONNECT the negative battery cable. REPEAT the network test with the scan tool.