What does it mean?
U1038 is a Network and Communication (CAN bus, module communication) fault code. It indicates: SCP (J1850) Invalid or Missing Data for Primary Id.
SCP (J1850) Invalid or Missing Data for Primary Id
Severity
Medium
Can I keep driving?
Usually drivable, but get it diagnosed without delay.
How is this code read?
This is a standard OBD-II code; any basic scanner reads it on vehicles built after 2004.
- UNetwork
- 1Manufacturer-specific
- 0Network / Communication
- 38Sequence number
Codes From the Same System
All Fault Codes- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0006High Speed CAN Communication Bus (-) Open
- U0007High Speed CAN Communication Bus (-) Low
- U0008High Speed CAN Communication Bus (-) High
Related Similar Codes
- U1030SCP (J1850) Invalid or Missing Data for Experimental #1
- U1031SCP (J1850) Invalid or Missing Data for Experimental #1
- U1032SCP (J1850) Invalid or Missing Data for Primary Id
- U1033SCP (J1850) Invalid or Missing Data for Primary Id
- U1034SCP (J1850) Invalid or Missing Data for Primary Id
- U1035SCP (J1850) Invalid or Missing Data for Primary Id
- U1036SCP (J1850) Invalid or Missing Data for Wheels
- U1037SCP (J1850) Invalid or Missing Data for Wheels
This information follows the generic OBD-II definition and does not replace a vehicle-specific diagnosis. The severity rating is rule-based; an authorised diagnostic reading is required for a definitive answer.