Transit Connect L4-2.0L (2010)
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Are the resistances greater than 1,000 ohms?
Yes
GO to N4.
No
GO to Pinpoint Test M. See: Pinpoint Test M: No High Speed Controller Area Network (HS-CAN) Communication, All Modules Are Not Responding
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N4 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO VOLTAGE
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Connect: Negative Battery Cable.
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Ignition ON.
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Measure the voltage between the DLC C251-6, circuit 4-EC7 (GY/RD)/4-EC8 (GY/VT), harness side and ground; and between the DLC
C251-14, circuit 5-EC7 (BU/RD)/5-EC8 (BU/WH), harness side and ground.
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Are the voltages greater than 6 volts?
Yes
REPAIR the circuit. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
GO to N5.
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N5 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 closed first or the screen display reverts back to the prior run network
test results.
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Disconnect: Battery Junction Box (BJB) Fuses 5 (10A), 28 (15A) and 35 (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 fuses. GO to Pinpoint Test A. See: Pinpoint Test A: The PCM Does Not Respond To The Scan Tool
