Edge AWD V6-3.5L (2009)
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) communicates with the scan tool through the Medium Speed Controller Area Network (MS-CAN). 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
CBP41 (BU) and SBP39 (WH/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.
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K1 CHECK THE ACM VOLTAGE SUPPLY CIRCUITS FOR AN OPEN
-
Ignition OFF.
-
Disconnect: ACM C240a.
-
Ignition ON.
-
Measure the voltage between the ACM C240a-1, circuit SBP39 (WH/RD), harness side and ground; and between the ACM C240a-2, circuit
CBP41 (BU), harness side and ground.
-
Are the voltages greater than 10 volts?
Yes
GO to K2.
No
VERIFY the Smart Junction Box (SJB) fuse 39 (20A) or fuse 41 (15A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring
Diagrams to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
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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 C240a-13, circuit GD114 (BK/BU), harness side and ground.
