U1262high severityNetwork
SCP (J1850) Communication Bus Fault
on 2004 Ford Thunderbird 3.8L V6 · FWD
What this code means
A general communication fault was detected on the J1850 SCP data bus. Modules cannot reliably exchange data, which may disable multiple systems.
Symptoms
- Warning lamps illuminated
- Loss of module functions
- Erratic gauge behavior
Common causes
- Shorted or open SCP bus wiring
- Faulty module dragging bus down
- Corroded connectors
- Poor ground or power supply
Diagnostic steps
- Scan network for communication codes
- Check SCP bus wiring for shorts or opens
- Measure bus resistance and voltage
- Disconnect modules to isolate the fault
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Other Network codes on this vehicle
U0001
High Speed CAN Communication Bus
U0002
High Speed CAN Communication Bus Performance
U0003
High Speed CAN Communication Bus (+) Open
U0004
High Speed CAN Communication Bus (+) Low
U0005
High Speed CAN Communication Bus (+) High
U0006
High Speed CAN Communication Bus (-) Open
U0007
High Speed CAN Communication Bus (-) Low
U0008
High Speed CAN Communication Bus (-) High
U0009
High Speed CAN Communication Bus Shorted Together
U0010
Medium Speed CAN Communication Bus