U1170
Lost Communications With Driver Door Switch Assembly
U1170 is an OBD-II diagnostic trouble code meaning: Lost Communications With Driver Door Switch Assembly. Common causes: open or short circuit in the door switch circuit, malfunction of the door switch itself. Estimated repair cost: $6–33.
Symptoms
- The central locking from the driver's door button does not work
- Interior lighting does not turn on when the driver's door is opened
- Error on the dashboard
- Incorrect operation of power windows
- Problems with seat/mirror position memory
Causes
- Open or short circuit in the door switch circuit
- Malfunction of the door switch itself
- Problems with the wiring harness in the door
- Contact corrosion
- Body control module malfunction
How to Fix
- Check driver door circuit fuse
- Inspect and check the integrity of the wiring harness in the door
- Check the condition of the switch contacts
- Test the door switch with a multimeter
- If necessary, replace the door switch
Related codes
FAQ
What does the U1170 code mean?
U1170 is an OBD-II diagnostic trouble code that indicates: Lost Communications With Driver Door Switch Assembly
What causes a U1170 error code?
The most common causes of U1170 include: Open or short circuit in the door switch circuit; Malfunction of the door switch itself; Problems with the wiring harness in the door; Contact corrosion.
How do I fix a U1170 diagnostic trouble code?
To fix U1170: Check driver door circuit fuse. Inspect and check the integrity of the wiring harness in the door. Check the condition of the switch contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1170?
Yes, but get it checked soon
How much does it cost to fix U1170?
The estimated repair cost for U1170 is $6–33. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat