What Does U1248 Mean?
The SCP J1850 network is not receiving valid time and date information from the responsible module. This indicates the clock/time module is not broadcasting or the data is corrupted.
Common Causes
35%
Radio/audio module failure or malfunction (typically houses clock function)
25%
Instrument cluster module failure where clock data originates
20%
Body Control Module not receiving or processing time/date data correctly
15%
SCP bus wiring issue between time-keeping module and other network components
5%
Dead or disconnected backup battery/capacitor that maintains clock during power loss
Diagnostic Steps
1
Step 1: Check if time/clock display functions properly on instrument cluster or radio display
2
Step 2: Monitor SCP network data stream to determine which module is supposed to broadcast time/date data
3
Step 3: Test communication capability of radio/audio module and instrument cluster using scan tool
4
Step 4: Inspect wiring and connectors specifically between time-keeping module and BCM
5
Step 5: Attempt to reset or reprogram the time-keeping module if hardware circuits test properly
Estimated Repair Cost
$100 - $600
Parts + labor, varies by vehicle and location
The SCP J1850 network is not receiving valid time and date information from the responsible module. This indicates the clock/time module is not broadcasting or the data is corrupted.
The most common cause of U1248 (SCP (J1850) Invalid or Missing Data for Time / Date) is: Radio/audio module failure or malfunction (typically houses clock function)
Typical repair costs for U1248 range from $100 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
No safety impact. Vehicle operates normally; only time/date display and time-dependent features may be affected.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1248 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Network
System
Network Communication / Instrument Cluster / Audio System
Difficulty
Type
Manufacturer
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
