U0161 - Lost Communication With Compass Module

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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U0161 Possible Causes

  • Faulty Compass Module
  • Compass Module harness is open or shorted
  • Compass Module circuit poor electrical connection

First diagnose U0161 code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the U0161 code

    Labor: 1.0

    The cost of diagnosing the U0161 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

U0161 Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

U0161 Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN high line goes to 3.75V, and the CAN low drops to 1.25V, thereby generating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Compass Module has not been received.
OBDII Code U0161 - Lost Communication With Compass Module - AutoCodes.com

U0161 More Information

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U0161 Information for specific makes

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