CAN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Power Management Control ECU Output DTCs (Intelligent tester Display/PowerManagement1)
DTC Code Detection Item Trouble Area See page
U0104 Lost Communication with Driving Support ECU

1. Driving support ECU branch wire or connector

2. Power source circuit of driving support ECU

3. Driving support ECU

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U1002 Lost Communication with Gateway Module (Power Management1)

1. Open or short in CAN No. 2 bus main wire or connector

2. Open or short in CAN No. 2 bus branch wire or connector

3. Power management control ECU

4. Driving support ECU

5. Seat belt control ECU

6. Parking assist ECU

7. CAN No. 3 junction connector

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U1100 Lost Communication with Seat Belt Control ECU

1. Seat belt control ECU branch wire or connector

2. Power source circuit of seat belt control ECU

3. Seat belt control ECU

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U110B Lost Communication with Parking Assist Control Module "B"

1. Parking assist ECU branch wire or connector

2. Power source circuit of parking assist ECU

3. Parking assist ECU

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Power Management Control ECU Output DTCs (Intelligent tester Display/PowerManagement2)
DTC Code Detection Item Trouble Area See page
U0100 Lost Communication with ECM / PCM

1. ECM main wire or connector

2. Power source circuit of ECM

3. ECM

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U0129 Lost Communication with Brake System Control Module

1. Skid control ECU branch wire or connector

2. Power source circuit of skid control ECU

3. Skid control ECU

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U0164 Lost Communication with A/C ECU

1. Air conditioning amplifier branch wire or connector

2. Power source circuit of air conditioning amplifier

3. Air conditioning amplifier

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U1002 Lost Communication with Gateway Module (Power Management2)

1. Open or short in power management bus main wire or connector

2. Open or short in power management bus branch wire or connector

3. Power management control ECU

4. ECM

5. Air conditioning amplifier

6. Skid control ECU

7. CAN No. 4 junction connector

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Driving Support ECU Output DTCs (Intelligent tester Display/Pre-Crash2)
DTC Code Detection Item Trouble Area See page
U1002 Lost Communication with Gateway Module (Parking Assist Bus)

1. Open or short in parking assist bus main wire or connector

2. Open or short in parking assist bus branch wire or connector

3. Driving support ECU

4. CAN No. 5 junction connector

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