B3618
Exterior Liftgate Unlatch Switch Circuit Malfunction
B3618 is an OBD-II diagnostic trouble code meaning: Exterior Liftgate Unlatch Switch Circuit Malfunction. Common causes: broken or damaged wiring harness, short circuit in the circuit. Estimated repair cost: $56–167.
Symptoms
- The back door does not open with the button
- No response to remote opening
- The malfunction indicator on the instrument panel lights up
Causes
- Broken or damaged wiring harness
- Short circuit in the circuit
- Malfunction of the rear door opener switch
- Problems with the control unit
How to Fix
- Check wiring harness for damage
- Check the resistance and continuity of the switch circuit
- Replace the rear door opener switch if necessary
- Check/replace the control unit if it is suspected of being faulty
Related codes
Error B3618 by Vehicle Brand
FAQ
What does the B3618 code mean?
B3618 is an OBD-II diagnostic trouble code that indicates: Exterior Liftgate Unlatch Switch Circuit Malfunction
What causes a B3618 error code?
The most common causes of B3618 include: Broken or damaged wiring harness; Short circuit in the circuit; Malfunction of the rear door opener switch; Problems with the control unit.
How do I fix a B3618 diagnostic trouble code?
To fix B3618: Check wiring harness for damage. Check the resistance and continuity of the switch circuit. Replace the rear door opener switch if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3618?
Yes, but get it checked soon
How much does it cost to fix B3618?
The estimated repair cost for B3618 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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