B1310high severityBody
Loss of Serial Data Communications
on 2003 Saturn L-Series 2.2L I4 · FWD
What this code means
A module has lost communication with another module over the serial data bus. This can affect multiple systems depending on the module involved.
Symptoms
- Multiple warning lights
- Features not working
- Modules missing on scan
Common causes
- Faulty data bus wiring
- Failed module on the bus
- Poor connector or ground
- Low battery voltage
Diagnostic steps
- Scan all modules for comm status
- Check data bus wiring continuity
- Inspect connectors and grounds
- Isolate the failed module
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Any of these will read and clear this code — pick by how deep you want to go.
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ANCEL AD410 →
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Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
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Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
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Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
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Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0006
Passenger Knee Airbag Deployment Circuit
B0010
Driver Side Airbag Deployment
B0011
Driver Side Airbag Deployment Circuit Open
B0012
Driver Side Airbag Deployment Circuit Short to Ground
B0013
Driver Side Airbag Deployment Circuit Short to Battery