Aviator 2WD V8-4.6L DOHC (2003)
Test E4-E5
Normal Operation
The tire pressure monitor module communicates with the diagnostic tool through the SCP communications network circuits 914 (TN/OG) and 915
(PK/LB). If one of the bus wires becomes shorted to ground or voltage, or if some but not all termination resistors are lost, communications can
continue. Check circuits 914 (TN/OG) and 915 (PK/LB) between the tire pressure monitor module C3183 and the data link connector (DLC) C251.
Total resistance values must not be more than 5 ohms. If the resistance is more than 5 ohms there is an open in circuit 914 (TN/OG) or 915 (PK/LB),
damage to the DLC C251, damage to the tire pressure monitor module C3183, or a problem in the in-line connector C212.
Possible Causes
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circuit 914 (TN/OG) or 915 (PK/LB) shorted to ground or open
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tire pressure monitor module C3183
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in-line C212
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DLC C251
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tire pressure monitor module
Test F
PINPOINT TEST F: THE DRIVER SEAT MODULE (DSM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL