Ranger 4WD V6-4.0L (2009)
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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
The HS-CAN has tested within specifications. Go To Pinpoint Test H to test for an intermittent HS-CAN fault condition. See: Pinpoint Test H:
Intermittent No High Speed Controller Area Network (HS-CAN) Communication, One Or More Modules Are Not Respond
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I5 CHECK THE HS-CAN TERMINATION RESISTOR
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Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness
side.
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Is the resistance between 108 and 132 ohms?
Yes
GO to I6.
No
GO to I9.
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I6 CHECK THE HS-CAN TERMINATION RESISTOR WITH THE PCM DISCONNECTED
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Disconnect: PCM C175b.
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Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness
side.
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Is the resistance between 108 and 132 ohms?
Yes
GO to I7.
No
GO to I8.
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