Fusion AWD V6-3.0L (2009)
Refer to Wiring Diagram Set 14, Module Communications Network for schematic and connector information. See: Diagrams/Electrical
Diagrams/Diagrams By Number
Refer to Wiring Diagram Set 130, Audio System/Navigation for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By
Number
Normal Operation
The Audio Control Module (ACM) communicate with the scan tool through the Medium Speed Controller Area Network (MS-CAN) circuits VDB06
(GY/OG) and VDB07 (VT/OG).
Circuits VDB06 (GY/OG) (MS-CAN +) and VDB07 (VT/OG) (MS-CAN -) provide the network connection to the ACM. Voltage for the ACM is
provided by circuits CBP02 (GN) and SBP11 (BU/RD). Circuit GD114 (BK/BU) provides ground.
This pinpoint test is intended to diagnose the following:
-
Fuse
-
Wiring, terminals or connectors
-
ACM
PINPOINT TEST K: THE ACM 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.
-------------------------------------------------
K1 CHECK THE ACM VOLTAGE SUPPLY CIRCUITS FOR AN OPEN
-
Ignition OFF.
-
Disconnect: ACM C290a (Base Audio/Audiophile) or C240a (THX(R) Audio/Navigation).
-
Ignition ON.
-
Measure the voltage between the base ACM C290a-1 (base audio/audiophile) or ACM C240a-1 (THX(R) audio/navigation), circuit SBP11
(BU/RD), harness side and ground; and between C290a-2 (base audio/audiophile) or C240a-2 (THX(R) audio/navigation), circuit CBP02 (GN),
harness side and ground.
-
Are the voltages greater than 10 volts?
Yes
GO to K2.
No
VERIFY the Smart Junction Box (SJB) fuse 12 (7.5A) or fuse 18 (20A) is OK. If OK, REPAIR the circuit in question. CLEAR the DTCs. REPEAT the
network test with the scan tool. If not OK, REFER to the Wiring Diagrams to identify the possible cause of the circuit short.
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K2 CHECK THE ACM GROUND CIRCUIT FOR AN OPEN
-
Ignition OFF.
-
Disconnect: Negative Battery Cable.
-
Measure the resistance between the ACM C290a-13 (Base Audio/Audiophile) or the ACM C240a-13 (THX(R) audio/navigation), circuit GD114
(BK/BU), harness side and ground.
