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CAN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE CHART

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Table 1. CAN MS bus (Main body ECU output code)
DTC Code Detection Item Trouble Area See page
U0230 Lost Communication with Rear Gate Module

1. Back door ECU branch wire or connector

2. Back door ECU power source circuit

3. Back door ECU

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U0327 Software Incompatibility with Vehicle Security Control Module

1. Certification ECU branch wire or connector

2. Certification ECU power source circuit

3. Certification ECU

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U1002 (CAN MS BUS) Lost Communication with Gateway Module (Main body ECU)

1. Open or short in CAN MS bus main wire or connector

2. Open or short in CAN MS bus branch wire or connector

3. Certification ECU

4. Back door ECU

5. Main body ECU

6. CAN junction connector RR

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