Internal Fault
Internal fault
Replacing the component
The climate control module (CCM) has registered an internal fault in the damper motor module (DMM) for temperature left.
If the fault is intermittent, it has been registered previously but is no longer present. Intermittent faults may be caused by interference at start up of the damper motor module (DMM). Intermittent faults may also be caused by other types of intermittent faults. The fault is evaluated depending on how it occurs. Replace the damper motor module (DMM) if the fault recurs.
Replace the damper motor module (DMM) for temperature left If the fault is permanent:
Damper motor temperature, replacing Service and Repair
Remedy as necessary.
Continue - Identifying the Damper Motor Module (DMM)
-------------------------------------------------
Identifying the Damper Motor Module (DMM)
Information
- The control module must be identified after replacing the Damper Motor Module (DMM).
Note! Identification must only be carried out when replacing the Damper Motor Module (DMM).
Have any damper motors been replaced?
Yes - Identifying the Damper Motor Module (DMM)
No - DONE
------------------------
Identifying the Damper Motor Module (DMM)
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)
------------------------
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
------------------------
DONE - Verification
-------------------------------------------------
Verification
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
------------------------
VERIFIED - Fault Found
VERIFICATION FAILED - Fault-tracing information
-------------------------------------------------
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 - FAULT-TRACING FAILED
No - Attempt New Test
------------------------
FAULT-TRACING FAILED - FAULT-TRACING FAILED
Attempt New Test - Replacing the component
-------------------------------------------------