Focus L4-2.0L (2009)
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Is the resistance less than 5 ohms?
Yes
If the vehicle is equipped with an APIM, GO to O15.
If the vehicle is not equipped with an APIM, GO to O16.
No
CONNECT the negative battery cable. GO to O26.
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O15 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER
WITH THE APIM DISCONNECTED
-
Disconnect: APIM C2298.
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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.
-
Is the resistance less than 5 ohms?
Yes
GO to O16.
No
CONNECT the negative battery cable. GO to O27.
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O16 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER
WITH THE IC DISCONNECTED
-
Disconnect: IC C220.
-
Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness
side.
-
Is the resistance less than 5 ohms?
Yes
REPAIR the circuit. CONNECT all modules. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
CONNECT the negative battery cable. GO to O28.
