garajizOBD-II code · manufacturer-specific
U1178
SCP (J1850) Invalid or Missing Data for Climate Control (HVAC)
- System
- U — In-vehicle network
- Severity
- Low (1/5)
- Can I keep driving?
- Usually safe to drive
What does U1178 mean?
U1178 is defined as “SCP (J1850) Invalid or Missing Data for Climate Control (HVAC)”.
You can usually keep driving, but have it checked soon so a small fault doesn’t become a bigger one.
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This page is general information; an exact diagnosis needs measurements and a technician’s check.