CAN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Diagnostic Trouble Code Chart
DTC No. Detection Item Trouble Area Note Link
U0100 Lost Communication with ECM / PCM "A"

  • Open or short in sub bus 15 main line or connector

  • Open or short in sub bus 15 branch line or connector

  • Hybrid vehicle control ECU assembly

  • ECM

  • Skid control ECU (brake booster with master cylinder assembly)

  • Open or short in No. 1 CAN junction connector

Tech Tips

As there is no sub bus monitor ECU for sub bus 15, each ECU detects communication stops and stores DTCs.

Click here

U0129 Lost Communication with Brake System Control Module

  • Open or short in sub bus 15 main line or connector

  • Open or short in sub bus 15 branch line or connector

  • Hybrid vehicle control ECU assembly

  • Skid control ECU (brake booster with master cylinder assembly)

  • ECM

  • Open or short in No. 1 CAN junction connector

Tech Tips

As there is no sub bus monitor ECU for sub bus 15, each ECU detects communication stops and stores DTCs.

Click here

U0129 Lost Communication with Brake System Control Module

  • Skid control ECU (brake booster with master cylinder assembly) branch line or connector

  • Power source circuit of skid control ECU (brake booster with master cylinder assembly)

  • Skid control ECU (brake booster with master cylinder assembly) ground circuit

  • Skid control ECU (brake booster with master cylinder assembly)

Tech Tips

As there is no sub bus monitor ECU for sub bus 15, each ECU detects communication stops and stores DTCs.

Click here

U0182 Lost Communication with Lighting Control Module Front

  • Headlight swivel ECU assembly branch line or connector

  • Power source circuit of headlight swivel ECU assembly

  • Headlight swivel ECU assembly ground circuit

  • Headlight swivel ECU assembly

Tech Tips

The hybrid vehicle control ECU assembly stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 3.

Click here

U0293 Lost Communication with Hybrid Vehicle Control System

  • Open or short in sub bus 15 main line or connector

  • Open or short in sub bus 15 branch line or connector

  • ECM

  • Skid control ECU (brake booster with master cylinder assembly)

  • Hybrid vehicle control ECU assembly

  • Open or short in No. 1 CAN junction connector

Tech Tips

As there is no sub bus monitor ECU for sub bus 15, each ECU detects communication stops and stores DTCs.

Click here

U1002 Lost Communication with Gateway Module

  • Open or short in sub bus 3 main line or connector

  • Open or short in sub bus 3 branch line or connector

  • Hybrid vehicle control ECU assembly

  • Headlight swivel ECU assembly

    (w/ Automatic Headlight Beam Level Control System)

  • Clearance warning ECU assembly

    (w/ Simple Intelligent Parking Assist System)

  • Open or short in No. 3 CAN junction connector

  • Open or short in No. 1 CAN junction terminal

Tech Tips

The hybrid vehicle control ECU assembly stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 3.

Click here

U1110 Lost Communication with Clearance Sonar Module

  • Clearance warning ECU assembly branch line or connector

  • Power source circuit of clearance warning ECU assembly

  • Clearance warning ECU assembly ground circuit

  • Clearance warning ECU assembly

Tech Tips

The hybrid vehicle control ECU assembly stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 3.

Click here