📖 What Does B0742 Mean?
Symptoms
- • Engine won't start
- • key fob not recognized
- • alarm system malfunction
Common Causes
- • Faulty immobilizer key fob
- • damaged or corroded wiring
- • faulty immobilizer module
- • incorrect key or keyless entry system
Possible Solutions
1. Check the key fob's battery level and replace it if necessary. 2. Inspect the wiring and connectors for damage or corrosion and repair or replace as needed. 3. Test the immobilizer module and replace it if faulty. 4. Try using a spare key or keyless entry system if available.
Fixing this on your car?
Get the exact oil type, fluid capacities, and torque specs for your specific vehicle before you start the repair.
❓ Common Questions About B0742
Can I drive with code B0742?
You can drive for a short time, but should address code B0742 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix B0742?
The estimated repair cost for code B0742 is between $50 and $200. This includes parts and labor for most makes and models.
Is this code easy to fix myself?
This repair is considered moderate. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.
Required Parts
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View Best Sellers ↗Related Diagnostic Codes
Other codes that may appear with B0742
B0740: Seat Height Sensor Circuit Malfunction
B0741: Turn Signal/Hazard Warning Lamp Malfunction
B0743: Audio System Malfunction
B0744: 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