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Home >> Volvo >> 2013 >> XC90 FWD L6-3.2L VIN 95 B6324S5 >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> Manufacturer Code Charts >> CCM Codes (Climate Control Module) >> CCM-DD14 >> No Communication

No Communication







No communication

Checking the diagnostic trouble codes (DTCs)




- Ignition on.
The diagnostic trouble code (DTC) may occur together with diagnostic trouble codes (DTCs) for other components that communicate with the climate control module (CCM) via LIN bus 1 and LIN bus 2.
Check whether the diagnostic trouble code (DTC) has been stored together with other diagnostic trouble codes (DTCs) for other components on the climate control unit.
Select one of the following options:
1. The diagnostic trouble code (DTC) is stored together with diagnostic trouble codes (DTCs) for components in both LIN bus 1 and LIN bus 2 (CCM-DD10 - CCM-DD16, CCM-DD30 - CCM-DD34)
2. The diagnostic trouble code (DTC) is stored together with diagnostic trouble codes (DTCs) for components only on LIN bus 1 (CCM-DD10 - CCM-DD16)
3. The diagnostic trouble code (DTC) is not together with diagnostic trouble codes (DTCs) for other components on LIN bus 1 and LIN bus 2.

Select an alternative.

1 - Checking the connectors and wiring

2 - Checking LIN bus 1 and connector

3 - Checking the wiring and component

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Checking the connectors and wiring








- Ignition off
- Disconnect the connector for the climate control module (CCM)
- Disconnect the connector for the central electronic module (CEM)
- Ignition on.

Checking the power supply and ground terminals
The following applies to components on the climate control unit that communicate with the climate control module (CCM) via LIN bus 1 and LIN bus 2:
- All components are jointly powered via a fuse from the central electronic module (CEM)
- All components are grounded via a common ground terminal.
Check the power supply to the components on the climate control unit by taking a reading on connector A for the central electronic module (CEM) between terminal #A44 (C44) and chassis ground.
Also check the fuse on the central electronic module (CEM).
Check the power supply cable between the central electronic module (CEM) and the connector for the climate control unit. Check for an open-circuit. Measure between terminal #1 on the connector for the climate control unit and chassis ground.
Check the ground terminal for the components on the climate control unit. Measure between the connector for climate control unit terminal #5 and chassis ground.
Check the connector on the climate control unit and connector A for the central electronic module (CEM). Check for contact resistance. Check for oxidation. Check for loose connections.

Checking LIN bus
Check both LIN bus 1 and LIN bus 2. Check for an open-circuit.
Take readings between:
- The connector for climate control module (CCM) terminal #12 (#36) and the connector for climate control unit terminal #2
- The connector for climate control module (CCM) terminal #7 (#31) and the connector for climate control unit terminal #5.
Check the wiring between the connector and the components on the climate control unit. Check for an open-circuit.
Remedy as necessary.

Other information:
- For further information about the connectors, fuses and relays, see the relevant section in the Wiring Diagram
- To connect the breakout box to the climate control module (CCM), see: Connecting the breakout box Connecting The Breakout Box, Climate Control Module (CCM)
- To connect the breakout box, central electronic module (CEM), see: Connecting the breakout box Connecting The Breakout Box, Central Electronic Module (CEM)
- Signal specification Signal Specification
- Climate control, location of components Locations
- Climate control module (CCM), replacing Service and Repair
- Central electronic module (CEM), replacing Replacing Central Electronic Module (CEM)
- Checking wiring and terminals Checking Wiring And Terminals





Continue - Verification

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Checking LIN bus 1 and connector




- Ignition off
- Disconnect the connector for the climate control module (CCM).
Check the climate control module (CCM) connector. Check for contact resistance. Check for oxidation. Check for loose connections.
Check LIN bus 1 between the climate control module (CCM), the connector for the climate control unit and the seat heating module (SHM) left. Check for an open-circuit.
Take readings between:
- The connector for climate control module (CCM) terminal #12 (#36) and the connector for climate control unit terminal #2
- The connector for climate control module (CCM) terminal #12 (#36) and connector A for seat heating module (SHM) left terminal #2.
Check LIN bus 1 between the components (the damper motors and the air quality sensor (AQS)) and the connector for the climate control unit. Check for an open-circuit.
Check the connector for the climate control unit. Check for contact resistance. Check for oxidation. Check for loose connections.
Remedy as necessary.

Other information:
- For further information about the connectors, fuses and relays, see the relevant section in the Wiring Diagram
- Connecting the breakout box Connecting The Breakout Box, Climate Control Module (CCM)
- Signal specification Signal Specification
- Climate control, location of components Locations
- Seat heating module (SHM), replacing Service and Repair
- Climate control module (CCM), replacing Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals






Continue - Verification

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Checking the wiring and component




- Ignition off
- Disconnect the connector for the damper motor module (DMM) for recirculation
- Ignition on.
Check the connector. Check for contact resistance. Check for oxidation. Check for loose connections.
Check that the damper motor module (DMM) is connected to power supply and ground.
Measure the voltage on the connector for the damper motor module (DMM) between terminals #1 and #3
Check LIN bus 1 by taking a reading between damper motor module (DMM) connector terminal #2 and the connector for climate control unit terminal #2. Check for an open-circuit.
Try replacing the damper motor module (DMM) if no fault is found.
Remedy as necessary.

Other information:
- For further information about the connectors, fuses and relays, see the relevant section in the Wiring Diagram
- Connecting the breakout box Connecting The Breakout Box, Climate Control Module (CCM)
- Signal specification Signal Specification
- Climate control, location of components Locations
- Climate control module (CCM), replacing Service and Repair
- Damper motor recirculation, replacing Damper Motor Module (DMM) Recirculation, Replacing
- Checking wiring and terminals Checking Wiring And Terminals









Continue - Verification

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Identifying components on the LIN network that belong to the climate control system (CCM)

Information
- The control module must be identified after replacing the Damper Motor Module (DMM).

Note! Identification must only be carried out when replacing components on the LIN network that belong to the climate control system (CCM).

Have any of the components on the LIN network been replaced?

Yes - Identifying components on the LIN network that belong to the climate control system (CCM)

No - DONE

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Identifying components on the LIN network that belong to the climate control system (CCM)

Hint: When identifying damper motors, each damper motor must be run to its limit position. These operations can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.




- Ignition off
- Reinstall the connectors, components etc.

Note! Climate Control Module (CCM) and damper motors can be affected by the temperature. The vehicle should have normal room temperature when performing this service.

Carry out identification as follows:
- Ignition on.
- Click on the VCT2000 symbol. Wait until identification has been carried out.
- Ignition off.





Continue - Calibrating the Climate Control Module (CCM)

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Calibrating the Climate Control Module (CCM)

Caution! When activating this function, calibration of the Climate Control Module (CCM) starts. After carrying out calibration read off of the diagnostic trouble codes (DTCs) starts. To ensure that diagnostics for the Climate Control Module (CCM) have been carried out, delay for 30 seconds before reading out diagnostic trouble codes (DTCs) after calibration.

Note! Climate Control Module (CCM) and damper motors can be affected by the temperature. The vehicle should have normal room temperature when performing this service.





Carry out calibration as follows:
- Ignition on.
- Click on the VCT2000 symbol. Wait until calibration has been carried out and diagnostic trouble codes (DTCs) read out.
- Ignition off.
This function controls the components that communicate with the Climate Control Module (CCM) via LIN bus 1 and LIN bus 2. In the event of a fault in any of the LIN buses, diagnostic trouble codes (DTCs) CCM-0070 to CCM-0071 will be stored depending on the fault. These diagnostic trouble codes (DTCs) can only be stored in conjunction with this diagnostic function.
If any of these diagnostic trouble codes (DTCs) recur, recalibrate to check if the problem was overcome. If the diagnostic trouble code (DTC) recurs, fault-trace the relevant diagnostic trouble code (DTC).





Continue - DONE

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DONE - Verification

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Verification





Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off
- Reinstall the connectors, components etc.
- Ignition on.
Check that the relevant diagnostic trouble code (DTC) has switched status from permanent to intermittent fault.
Check also that diagnostic trouble code (DTC) CCM-0070, CCM-0071 CCM-0072 or CCM-0073 has not been stored during identification of the damper motors.
These diagnostic trouble codes (DTCs) can only be stored when identifying damper motors. They mean that the identification has failed for some reason.
Remedy by correctly identifying the damper motor. Fault-trace according to the relevant information.





Has the status of the diagnostic trouble code (DTC) changed?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

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Fault-tracing information





Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Checking the diagnostic trouble codes (DTCs)

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Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Do you want to view the information again?

Yes - Attempt New Test

No - FAULT FOUND

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Attempt New Test - Checking the diagnostic trouble codes (DTCs)

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