U0173 - Lost Communication With Restraints System Sensor 'D'
U0173 Possible Causes
- Faulty Restraints System Sensor 'D'
- Restraints System Sensor 'D' harness is open or shorted
- Restraints System Sensor 'D' circuit poor electrical connection
How do I fix code U0173?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 U0173 code
Labor: 1.0The cost of diagnosing the U0173 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.
- Air Bag Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
U0173 DescriptionA 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 Restraints System Sensor 'D' has not been received.
More InformationNeed more information on how to fix the U0173 code?
Get Access to Factory Service Manuals
Information for specific makes
- U0173 CHRYSLER Lost Communication With Left Side Satellite Acceleration Sensor 2
- U0173 DODGE Lost Communication With Left Side Satellite Acceleration Sensor 2
- U0173 FIAT Lost Communication With Left Side Satellite Acceleration Sensor 2
- U0173 JEEP Lost Communication With Left Side Satellite Acceleration Sensor 2
- U0173 RAM Lost Communication With Left Side Satellite Acceleration Sensor 2
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Need more help?Get the U0173 code diagnosed by a professional: Find a repair shop in your area
CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the U0173 code? Have you replaced any parts?
Any information is appreciated. Thanks