Ranger 4WD V6-4.0L (2009)
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Ignition ON.
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Measure the voltage between the DLC C251-6, circuit VDB04 (WH/BU), harness side and ground; and between the DLC C251-14, circuit
VDB05 (WH), harness side and ground.
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Is the voltage greater than 6 volts?
Yes
REPAIR the circuit. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
GO to H5.
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H5 CHECK FOR RESTORED COMMUNICATION WITH THE PCM DISABLED
NOTE: An Integrated Diagnostic System (IDS) session must be established prior to disabling the PCM in this test step. If the PCM has failed
communication during multiple attempts to identify the vehicle, first identify the vehicle manually by entering a PCM part number, calibration number or
tear tag when prompted by the IDS.
NOTE: When a vehicle is manually identified by a PCM part number, calibration number or tear tag, the IDS does not automatically run a network test.
The network test must be manually selected and run.
NOTE: When re-running the network test, the network test application must be first closed or the screen display reverts back to the prior run network
test results.
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Disconnect: Battery Junction Box (BJB) Fuses 21 (10A) and 39 (15A).
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Enter the following diagnostic mode on the scan tool: Network Test.
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Repeat the network test.
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Do all other modules pass the network test?
Yes
INSTALL the removed fuses. Go To Pinpoint Test A. See: Pinpoint Test A: The PCM Does Not Respond To The Scan Tool
No
INSTALL the removed fuses. GO to H6.
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H6 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE SJB DISABLED
NOTE: When re-running the network test, the network test application must be first closed or the screen display reverts back to the prior run network
test results.
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Disconnect: Smart Junction Box (SJB) Fuse 11 (10A).
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Enter the following diagnostic mode on the scan tool: Network Test.
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Repeat the network test.
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Do all other modules pass the network test?
Yes
INSTALL the removed fuse. Go To Pinpoint Test D. See: Pinpoint Test D: The Smart Junction Box (SJB) Does Not Respond To The Scan Tool
No
GO to H7.