DTC U0516, U2516, 16:Er12 [MULTIPLEX COMMUNICATION SYSTEM]
id0902e6837100
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DTC |
U0516 |
Climate control unit (with full-auto air conditioner) |
CAN system communication error |
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U2516 |
Information display Instrument cluster |
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16:Er12 |
Audio unit (base module) |
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DETECTION CONDITION
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• CAN system related harness malfunction
• Related module communication error
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POSSIBLE CAUSE
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• Open or short circuit in wiring harness
• Malfunction of connectors between information display, audio unit (base module), Climate control unit (with full-auto air conditioner) and instrument cluster
• Climate control unit (with full-auto air conditioner) malfunction
• Information display malfunction
• Audio unit (base module) malfunction
• Instrument cluster malfunction
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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INSPECT CAN SYSTEM-RELATED DTC
• Are any DTCs other than the following displayed?
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Yes
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Determine malfunctioning part in CAN system.
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No
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Go to the next step.
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2
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INSPECT CONNECTOR
• Inspect the connector of the module that outputs the DTC.
• Is it normal?
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Yes
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Go to the next step.
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No
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Repair or replace the connector, then go to Step 4.
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3
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INSPECT WIRING HARNESSES
• Inspect for the following malfunctioning wiring harnesses:
• Is there any malfunction?
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Yes
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Repair or replace the wiring harness, then go to the next step.
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No
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Go to the next step.
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4
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VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC using the M-MDS.
• Is the same DTC present?
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Yes
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Replace the module that outputs the DTC, then retry this step.
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No
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Troubleshooting completed.
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