What Does U0161 Mean?
The vehicle's network has lost communication with the compass module, which provides directional heading information to the driver information display. This typically affects convenience features rather than core vehicle operation.
Common Causes
40%
Faulty compass module with internal electronic failure
25%
Damaged wiring or connector at compass module location (often in mirror or overhead console)
20%
Loss of power or ground to compass module
10%
Water intrusion into compass module housing causing corrosion
5%
Failed rearview mirror assembly containing integrated compass
Diagnostic Steps
1
Step 1: Locate compass module (typically in rearview mirror assembly or overhead console)
2
Step 2: Check power and ground at module connector with multimeter
3
Step 3: Inspect connector and wiring for damage, corrosion, or loose connections
4
Step 4: Verify CAN bus communication signals present at module connector
5
Step 5: Test compass module operation or replace with known good unit
Estimated Repair Cost
$150 - $500
Parts + labor, varies by vehicle and location
The vehicle's network has lost communication with the compass module, which provides directional heading information to the driver information display. This typically affects convenience features rather than core vehicle operation.
The most common cause of U0161 (Lost Communication With Compass Module) is: Faulty compass module with internal electronic failure
Typical repair costs for U0161 range from $150 to $500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
No direct safety impact. Compass feature will be unavailable but does not affect vehicle operation or critical safety systems.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0161 to identify the root cause.
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Quick Info
Category
Network
System
Navigation/Information Display System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
