AutoCodes - Toyota - U1101 TOYOTA

U1101 TOYOTA Code - Lost Communication With Distance Control ECU

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|U1101 TOYOTA code possible causes

  • CAN communication system
  • Faulty Distance Control ECU
  • Faulty Seat Belt Control ECU

|How do I fix the U1101 TOYOTA 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 U1101 TOYOTA code

Labor: 1.0

The cost of diagnosing the U1101 TOYOTA code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are U1101 TOYOTA code possible symptoms?

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

|U1101 TOYOTA code description

The Seat Belt Control ECU receives signals from the master cylinder solenoid (Skid Control ECU) and the center airbag sensor via the CAN communication line. The distance control ECU receives signals from the ECM via the CAN communication line. The Diagnostic Trouble Code (DTC) will set when the Seat Belt Control ECU does not receive the signal from the Distance Control ECU.
OBDII Code U1101 Toyota - Lost Communication With Distance Control ECU -

|Need more information with the U1101 TOYOTA code?

Need more information on how to fix the U1101 TOYOTA code? Get Access to Factory Service Manuals

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.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

|Need help with a U1101 TOYOTA code?

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|U1101 TOYOTA code comments

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