B177E
5th Bow Latch Close Sensor
B177E is an OBD-II diagnostic trouble code meaning: 5th Bow Latch Close Sensor. Common causes: lock position sensor malfunction, open/short circuit in sensor circuit. Estimated repair cost: $33–167.
Symptoms
- Inability to open/close sunroof or panoramic roof
- Roof warning light flashing
- Error message on display
- False alarms (rare)
Causes
- Lock position sensor malfunction
- Open/short circuit in sensor circuit
- Oxidation of connector contacts
- Mechanical damage to the lock or levers
- Problems with the wiring harness in the roof area
- Body control module failure (rare)
How to Fix
- Diagnosing the Sensor Circuit Using a Multimeter
- Checking the physical condition of the lock and lever mechanism
- Cleaning the sensor connector contacts
- Replace the sensor if necessary
- Repair/replacement of wiring harness if damage is detected
- Resetting the error after repair and checking the system operation
Related codes
FAQ
What does the B177E code mean?
B177E is an OBD-II diagnostic trouble code that indicates: 5th Bow Latch Close Sensor
What causes a B177E error code?
The most common causes of B177E include: Lock position sensor malfunction; Open/short circuit in sensor circuit; Oxidation of connector contacts; Mechanical damage to the lock or levers.
How do I fix a B177E diagnostic trouble code?
To fix B177E: Diagnosing the Sensor Circuit Using a Multimeter. Checking the physical condition of the lock and lever mechanism. Cleaning the sensor connector contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B177E?
Limited driving only, diagnose soon
How much does it cost to fix B177E?
The estimated repair cost for B177E is $33–167. Actual cost depends on your vehicle, location, and labor rates.
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