Aviator 2WD V8-4.6L DOHC (2003)

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driver climate controlled seat module
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passenger climate controlled seat module
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vehicle security module
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DSM
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4WD control module
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instrument cluster
Test R
PINPOINT TEST R: THE INSTRUMENT CLUSTER DOES NOT RESPOND TO THE DIAGNOSTIC TOOL (UBP)
Test R1-R3
Normal Operation
The instrument cluster communicates with the diagnostic tool through the UART based protocol (UBP) communications network circuit 693 (OG). If
circuit 693 (OG) becomes open or shorted to ground communications to that module will not be possible. Check circuit 693 (OG) between the
instrument cluster and the 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 693 (OG), damage to the DLC C251, damage to the instrument cluster C220b.
Possible Causes
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circuit 693 (OG) shorted to ground or open
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instrument cluster C220b
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DLC C251
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instrument cluster
Test S
PINPOINT TEST S: NO MODULE/NETWORK COMMUNICATION - NO POWER TO THE DIAGNOSTIC TOOL