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Climate Control Module (Ccm) Diagnostic Trouble Codes: Overview Volvo XC70 II

Automatic HVAC System 1 illustration ~1905 words

DESCRIPTION

Frozen values are parameter values that are stored when a diagnostic trouble code (DTC) is stored.

Not all parameters can be read off for all diagnostic trouble codes (DTCs). The parameter values can only be read off where they can provide more information about the prevailing circumstances when the diagnostic trouble code (DTC) was stored.

DESCRIPTION OF STATUS IDENTIFIER

Status identifier
There are different status identifiers that can be read out for each diagnostic trouble code (DTC). The control module tests each connection more or less continuously. By reading out the diagnostic trouble code (DTC) and the associated status identifier (which detects the malfunction and stores the DTC), information about the test is obtained. Not all status identifiers need to be implemented in one control module, this varies from system to system. All status identifiers are reset and start counting again each time the control module is powered up and when erasing diagnostic trouble codes (DTCs). The possible status identifiers are described below.
Status identifierExplanation
SI#01The malfunction is validated now. Shows if the control module detects the malfunction right now. It is only when the test is in progress that the control module can detect malfunction and generate diagnostic trouble code.
SI#02The malfunction is validated in the current operating cycle. Shows if the control module has detected the malfunction any time during this operating cycle.
SI#03Intermittent not yet confirmed diagnostic trouble code.
SI#04Confirmed diagnostic trouble code.
SI#05Test status in current and/or earlier operating cycle. Shows if control module has performed test for this diagnostic trouble code in current and/or earlier operating cycle.
SI#06The malfunction is validated in an earlier operating cycle. Shows if the control module has detected the malfunction any time during an earlier operating cycle.
SI#07Test status in current operating cycle. Shows if control module has performed test for this diagnostic trouble code in current operating cycle.
SI#08Request activate warning light/text message. Information about the diagnostic trouble code activates a warning light or text message.

DESCRIPTION OF COUNTER

Counter
There are eight different counters that are stored individually for each diagnostic trouble code (DTC). For an intermittent malfunction, the values of the different counters can be studied to determine how intermittent the malfunction is. All counters do not need to be implemented in one control module, this varies from system to system. The possible counters are described below.
CounterFunction
C#1Counts the number of operating cycles since the malfunction was last validated. This information can be used to determine whether the malfunction is active during the current operating cycle or not. The malfunction is present now if the value is zero.
C#2Counts the number of operating cycles since the malfunction was last validated, where test for the diagnostic trouble code was performed without the malfunction being detected and validated. When a test is performed, no malfunction is detected, the counter will count up by 1 for each operating cycle.
C#3Counts the number of operating cycles since the malfunction was validated the first time . For each completed operating cycle the counter will count up by 1.
C#4Counts the number of operating cycles in which the malfunction was validated since it was first validated. Counts the number of times the malfunction has occurred since the first time.
C#5Counts the number of warm-up cycles since the MIL-light has gone off.
C#6The counter counts the number of internal detections of the malfunction that have been performed for the diagnostic trouble code. When this counter reaches + 127, the control module considers that the malfunction is active right now. When counter is at value -127 the malfunction is not active. The value is reset to zero at each new operating cycle. If the value increases toward +127 the control module has detected a malfunction and, for each internal test, the value counts up. When the malfunction is not active, the control module counts down to minimum -127. Value can only be changed when the control module has started the test for the diagnostic trouble code. The increments with which the control module counts up or down the value may vary between control modules.
C#7Shows maximum value for current operating cycle.
C#8Shows maximum value for current and/or earlier operating cycle.

Scheme 250

Scheme 250
Scheme 250

IDENTIFICATION

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S30728942432012082100000)

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S06920587502012082100000)

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S31979386102012082100000)

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S31627327602012082100000)

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S42155805422012082100000)

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S27062471062012082100000)

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S08706254632012082100000)

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S18317563112012082100000)

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S12765986772012082100000)

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S04160948222012082100000)

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S13443285232012082100000)

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S19389396592012082100000)

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S40596195762012082100000)

HINT: Identification of damper motors requires that the relevant damper motor is run to the limit positions. These runs can take up to 30 seconds. When identifying the damper motors it is important that a battery charger is connected.

  1. Ignition off.
  2. Reinstall the connectors, components etc.

Note. Ensure that nothing is physically preventing the damper from moving to its limit positions. If something is blocking the damper, an identification can cause problems which are extremely difficult to correct. 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

  1. Ignition on.
  2. Click on the VCT2000 (Volvo Scan Tool) symbol. Wait until identification has been carried out.
  3. Ignition off.
  1. Continue Refer to «CALIBRATION»(ref-495496-S12890929262012082100000)

More articles — Climate Control Module (Ccm) Diagnostic Trouble Codes