Focus L4-2.0L (2009)
CONNECT the negative battery cable. GO to O25.
No
GO to O20.
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O20 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND
WITH THE OCSM DISCONNECTED
-
Disconnect: OCSM C3285.
-
Measure the resistance 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.
-
Are the resistances greater than 1,000 ohms?
Yes
CONNECT the negative battery cable. GO to O26.
No
If the vehicle is equipped with an APIM, GO to O21.
If the vehicle is not equipped with an APIM, GO to O22.
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O21 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND
WITH THE APIM DISCONNECTED
-
Disconnect: APIM C2298.
-
Measure the resistance 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.
-
Are the resistances greater than 1,000 ohms?
Yes
CONNECT the negative battery cable. GO to O27.
No
GO to O22.
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O22 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND
WITH THE IC DISCONNECTED
-
Disconnect: IC C220b.
-
Measure the resistance 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.