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Procedures For Determining the Location of A Malfunction

PROCEDURES FOR DETERMINING THE LOCATION OF A MALFUNCTION

System Wiring Diagram:





PCM
1. Check the display of DTC U0121 and/or U0155, using the SST (WDS or equivalent). (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM (L3 WITH TC)].) Diagnostic Trouble Code Descriptions




2. Referring to the table, determine the malfunctioning part of the CAN system.

DSC HU/CM
1. Check the display of DTC U0100, U0114, U0155 and/or U2511, using the SST (WDS or equivalent). (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM (L3 WITH TC)].)
2. Access and monitor the "PCM-MSG" and "AWD-MSG" of PID using the SST (WDS or equivalent).
3. Referring to the PID/DATA MONITOR, confirm the display status of the PID. (See PID/DATA MONITOR TABLE [MULTIPLEX COMMUNICATION SYSTEM (L3 WITH TC)].) Multiplex Communication System




4. Referring to the above table, determine the malfunctioning part of the CAN system.

AWD Control Module
1. Check the display of DTC U0100 and/or U0121 using the SST (WDS or equivalent). (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM (L3 WITH TC)].) Diagnostic Trouble Code Descriptions




2. Referring to the above table, determine the malfunctioning part of the CAN system.

Keyless Control Module
1. Check the display of DTC U0100, U0323 and/or U2023 using the SST (WDS or equivalent). (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM (L3 WITH TC)].) Diagnostic Trouble Code Descriptions




2. Referring to the table, determine the malfunctioning part of the CAN system.

Instrument Cluster
1. Check the display of DTC U1900 using the SST (WDS or equivalent). (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM (L3 WITH TC)].) Diagnostic Trouble Code Descriptions

2. Access and monitor the "ABS-MSG", "AWD-MSG", "PCM-MSG", "RKE-MSG" and "TPM-MSG" of PID using the SST (WDS or equivalent).
3. Referring to the PID/DATA MONITOR, confirm the display status of the PID. (See PID/DATA MONITOR TABLE [MULTIPLEX COMMUNICATION SYSTEM (L3 WITH TC)].) Multiplex Communication System




4. Referring to the following table, determine the malfunctioning part of the CAN system.

Repair Procedure
1. Inspect the connector of malfunctioning module.
- If there is any malfunction, repair or replace the connector.

2. Inspect the malfunctioning wiring harnesses as follow:
- If there is any malfunction, repair or replace the wiring harnesses.
- If there is no malfunction, replace the malfunctioning module.
- Short to GND
- Short to power supply
- Twisted pair short each other
- Open circuit

3. Make sure to reconnect all disconnected connectors.
4. Clear the CAN system related DTCs using the WDS or equivalent.
5. Verify if the CAN system related DTCs are displayed using the WDS or equivalent.
- If the same following DTCs are present, replace the malfunctioning module
- U0073 (PCM, DSC HU/CM, AWD control module, keyless control module)
- U2516 (Instrument cluster)

- If other DTC is present, perform the appropriate DTC inspection. (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM (L3 WITH TC)].) Diagnostic Trouble Code Descriptions
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