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We need to check the communication wiring between the cluster and the PCM. Below are the wiring connector pin out charts for both. Check the continuity between the cluster pin #1 Tan/Orange wire and the PCM connector pin #16 Tan/Orange wire. Then check the continuity between cluster pin #2 Pink/Light Blue wire and the PCM pin #15 Pink/Light blue wire.
VREF should be 5 volts at the sensors. Ford uses 5 volts for reference.
Check these fuses below.
In the dash fuse box, fuses #2 and #30
In the engine bay fuse box, fuses #2 and #18