This guide is customized for your 2014 Nissan SENTRA
B0974: B0974: Immobilizer System Malfunction
on 2014 Nissan SENTRA
Important for 2014 Nissan SENTRA Owners
Before starting repairs, verify which engine your 2014 Nissan SENTRA has. Check your VIN or engine code to ensure you order the correct parts.
📖 What Does B0974 Mean on 2014 Nissan SENTRA?
Symptoms
- • Vehicle won't start
- • won't crank
- • or won't run
Common Causes
- • Faulty immobilizer key fob
- • damaged or corroded wiring
- • faulty immobilizer module
- • or a problem with the engine control module's communication with the immobilizer system
How to Fix B0974 on 2014 Nissan SENTRA
1. Check the immobilizer key fob for damage or corrosion. Replace if necessary. 2. Inspect and clean the wiring harness for corrosion or damage. 3. Check the immobilizer module for faults and replace if necessary. 4. Update the engine control module's software if necessary.
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Related Diagnostic Codes
Other codes that may appear with B0974
B0972: Seat Position Sensor Circuit Malfunction
B0973: Exterior Lighting Malfunction
B0975: Audio System Fault
B0976: Airbag System Fault
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system