U0314high severityNetwork
Software Incompatibility With Four Wheel Drive Control Module
on 2020 Toyota RAV4 2.5L I4 · AWD
What this code means
The four wheel drive control module software does not match the network. This can affect 4WD engagement and performance.
Symptoms
- 4WD warning light on
- 4WD not engaging properly
- Reduced traction
Common causes
- Mismatched module software version
- Module replaced without programming
- Incomplete software update
- Failed 4WD control module
Diagnostic steps
- Check software versions across modules
- Compare against manufacturer specs
- Reprogram module with correct software
- Retest 4WD operation
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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