Freestar V6-4.2L VIN 2 (2004)
DIAGNOSTIC TOOL
Test J1-J2
Normal Operation
The driver or passenger climate controlled seat module communicates with the diagnostic tool through the UART-based protocol (UBP)
communications network circuit 2077 (PK/LB). If the UBP circuit becomes open or shorted to ground communications to that module will not be
possible. Check circuit 2077 (PK/LB) between the climate controlled seat module 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 UBP network circuit, damage to the DLC C251, damage to the climate controlled seat
module connector, or a problem in the in-line connectors.
Possible Causes
-
UBP circuit 2077 (PK/LB), shorted to ground or open
-
DLC C251
-
driver or passenger climate controlled seat module
Test K
PINPOINT TEST K: THE LEFT HAND (LH) OR RIGHT HAND (RH) POWER SLIDING DOOR (PSD) MODULE DOES NOT RESPOND
TO THE DIAGNOSTIC TOOL