Ranger 4WD V6-4.0L (2009)
PINPOINT TEST E: THE IC DOES NOT RESPOND TO THE SCAN TOOL
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the
connector.
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.
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E1 CHECK THE HS-CAN TERMINATION RESISTANCE
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Ignition OFF.
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Disconnect: Negative Battery Cable.
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Disconnect the scan tool cable from the Data Link Connector (DLC).
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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 54 and 66 ohms?
Yes
GO to E2.
No
CONNECT the negative battery cable. GO to E4.
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E2 CHECK THE IC GROUND CIRCUITS FOR AN OPEN
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Disconnect: IC C220a.
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Disconnect: IC C220b.
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Measure the resistance between the IC, harness side and ground as follows:
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Are the resistances less than 5 ohms?
Yes
CONNECT the negative battery cable. GO to E3.
No
REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
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E3 CHECK THE IC VOLTAGE SUPPLY CIRCUITS FOR AN OPEN
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Ignition ON.
-
Measure the voltage between the IC, harness side and ground as follows: