C0274
Excessive Dump/Isolation Time
C0274 is an OBD-II diagnostic trouble code meaning: Excessive Dump/Isolation Time. Common causes: open or short circuit in wiring harness, squib malfunction. Estimated repair cost: $56–167.
Symptoms
- Airbag light is on
- Disabling SRS
- Malfunction of seat belt pretensioners
Causes
- Open or short circuit in wiring harness
- Squib malfunction
- Problems with the SRS control module
- Corrosion of contacts in the circuit
How to Fix
- Check the wiring harness for opens and shorts
- Diagnose squibs and pretensioners
- Check SRS control module
- Clean or replace corroded contacts
Related codes
Error C0274 by Vehicle Brand
FAQ
What does the C0274 code mean?
C0274 is an OBD-II diagnostic trouble code that indicates: Excessive Dump/Isolation Time
What causes a C0274 error code?
The most common causes of C0274 include: Open or short circuit in wiring harness; Squib malfunction; Problems with the SRS control module; Corrosion of contacts in the circuit.
How do I fix a C0274 diagnostic trouble code?
To fix C0274: Check the wiring harness for opens and shorts. Diagnose squibs and pretensioners. Check SRS control module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0274?
Limited driving only, diagnose soon
How much does it cost to fix C0274?
The estimated repair cost for C0274 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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