Taurus AWD V6-3.5L (2009)
The Medium Speed Controller Area Network (MS-CAN) uses an unshielded twisted pair cable, circuits VDB06 (GY/OG) and VDB07 (VT/OG). The
following modules communicate on the MS-CAN:
-
Audio Control Module (ACM)
-
Accessory Protocol Interface Module (APIM)
-
Rear Entertainment Module (RETM)
-
Driver Seat Module (DSM)
-
HVAC module
-
Instrument Cluster (IC)
-
Liftgate/Trunk Module (LTM)
-
Satellite Digital Audio Receiver System (SDARS) module
-
Smart Junction Box (SJB)
In the event that 1 of the 2 network circuits (MS-CAN + or MS-CAN -) becomes open to a module on the network, unreliable network communication to
all modules on the network may result.
This pinpoint test is intended to diagnose the following:
-
Wiring, terminals or connectors
PINPOINT TEST T: PINPOINT TEST T: INTERMITTENT NO MS-CAN COMMUNICATION, COMMUNICATION CAN BE
INTERMITTENTLY ESTABLISHED
NOTE: Various modules will set network DTCs during this test procedure. Clear DTCs from all modules after the diagnostic procedure is completed.
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T1 CHECK THE DATA LINK CONNECTOR (DLC) PINS FOR DAMAGE
-
Ignition OFF.
-
Disconnect the scan tool cable from the DLC.
-
Inspect DLC pins 3 and 11 for damage.
-
Are DLC pins 3 and 11 OK?
Yes
GO to T2.
No
REPAIR the DLC as necessary. CLEAR the DTCs. REPEAT the network test with the scan tool.
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T2 CHECK THE MS-CAN TERMINATION RESISTANCE
-
NOTE: Failure to disconnect the battery will result in false resistance readings.
-
Disconnect the battery ground cable.
-
Measure the resistance between the DLC C251-3, circuit VDB06 (GY/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness
side.
-
Is the resistance between 54 and 66 ohms?
Yes
