Climate Control Module (Ccm) Diagnostic Trouble Codes: Wiring Volvo V40 I рестайлинг

Checking components and wiring

Check the power unit connector and climate control module connector A (30-pin). Check for contact resistance and oxidation.

Check the cable between climate control module #A27 and power unit terminal #4. Check for an open-circuit.

Check the cable between climate control module #A27 and power unit terminal #2 and blower fan relay terminal #4. Check for a short-circuit to supply voltage.

Check the ground lead between power unit terminal #2 and its ground terminal. Check for an open-circuit.

Try a new power unit if the wiring is OK.

Remedy as necessary.

Other information

1. To access or replace the power unit, see «Power unit blower fan»(ref-441328-S22489487822011121500000)
2. To access or replace the blower fan motor, see «Fan motor»(ref-441328-S22481181352011121500000)
3. To access and replace the blower fan relay, see «Replacing the blower fan relay»(ref-441328-S12623806572011121500000)
4. To connect the breakout box to the climate control module, see «Connecting the breakout box, climate control module»(ref-441326-S35353694222011121500000)
5. For the voltage of the signal cable, see «Climate control signal specifications»(ref-441327-S29322084422011121500000)
6. For other information, see «Electrical/electronic system specifications»(ref-441327-S22800567222011121500000)
7. See «Checking wiring and terminals. Permanent fault»(ref-441291-S06723382482011121500000)

Was a fault detected?

1. YES Refer to «Verification»(ref-441373-S09257721882011121500000)
2. NO Refer to «Intermittent fault»(ref-441373-S17049991482011121500000)

Checking the connectors, components and wiring

1. Check the climate control module connector A (30-pin) and the blower fan relay connector. Check for contact resistance and oxidation
2. Check the signal cable between climate control module terminal #A24 and blower fan relay terminal #3. Check for a short-circuit to ground. Check for an open-circuit
3. Try a new blower fan relay if the wiring and terminals are OK
4. Remedy as necessary. Other information: To access and replace the blower fan relay, see «Replacing the blower fan relay»(ref-441328-S12623806572011121500000) To connect the breakout box, see «Connecting the breakout box, climate control module»(ref-441326-S35353694222011121500000) For the voltage of the signal cable, see «Climate control signal specifications»(ref-441327-S29322084422011121500000) For the resistance values, see «Electrical/electronic system specifications»(ref-441327-S22800567222011121500000) See «Checking wiring and terminals. Permanent fault»(ref-441291-S06723382482011121500000)

1. Continue Refer to «Verification»(ref-441373-S26992475892011121500000)

1. Check the resistance of the engine coolant temperature (ECT) sensor. Take readings between sensor terminals #1 and #2
2. Check the signal cable between climate control module terminal #B5 and damper motor terminal #2 for a short-circuit to ground
3. Remedy as necessary. Other information: For the resistance values, see «Electrical/electronic system specifications»(ref-441327-S22800567222011121500000) To replace the engine coolant temperature (ECT) sensor, see «Engine coolant temperature (ECT) sensor (A/C)»(ref-441328-S19906565782011121500000) To connect the breakout box, see «Connecting the breakout box, climate control module»(ref-441326-S35353694222011121500000) For the voltage of the signal cable, see «Climate control signal specifications»(ref-441327-S29322084422011121500000) See «Checking wiring and terminals. Permanent fault»(ref-441291-S06723382482011121500000)

1. Continue Refer to «Verification»(ref-441373-S22748097412011121500000)

Check the resistance of the engine coolant temperature (ECT) sensor. Take readings between temperature sensor terminals #1 and #2.

Check the signal cable between climate control module terminal #B5 and engine coolant temperature (ECT) sensor terminal #2. Check for an open-circuit. Check for a short-circuit to supply voltage.

Check the ground lead between control module terminal #B6 and engine coolant temperature (ECT) sensor terminal #1. Check for an open-circuit. Check for a short-circuit to supply voltage.

HINT: An open-circuit in the ground lead may have been caused by a short-circuit to supply voltage. Always check the signal cable for this fault cause as well.

Remedy as necessary.

Other information

1. To replace the engine coolant temperature (ECT) sensor, see «Engine coolant temperature (ECT) sensor (A/C)»(ref-441328-S19906565782011121500000)
2. To connect the breakout box, see «Connecting the breakout box, climate control module»(ref-441326-S35353694222011121500000)
3. For the resistance values, see «Electrical/electronic system specifications»(ref-441327-S22800567222011121500000)
4. For the voltage of the signal cable, see «Climate control signal specifications»(ref-441327-S29322084422011121500000)
5. See «Checking wiring and terminals. Permanent fault»(ref-441291-S06723382482011121500000)

1. Continue Refer to «Verification»(ref-441373-S20245359742011121500000)

Check the resistance of the evaporator temperature sensor. Take the readings between evaporator temperature sensor terminals #3 and #4.

Check the cable between climate control module terminal #B3 and evaporator temperature sensor terminal #4. Check for a short-circuit to ground.

Remedy as necessary.

Other information

1. For the resistance values, see «Electrical/electronic system specifications»(ref-441327-S22800567222011121500000)
2. To replace the control module, see «Comfort module»(ref-441328-S27180039832011121500000)
3. To replace the evaporator temperature sensor, see «Temperature sensor evaporator»(ref-441328-S03072863592011121500000)
4. To connect the breakout box, see «Connecting the breakout box, climate control module»(ref-441326-S35353694222011121500000)
5. For the voltage of the signal cable, see «Climate control signal specifications»(ref-441327-S29322084422011121500000)
6. See «Checking wiring and terminals. Permanent fault»(ref-441291-S06723382482011121500000)

1. Continue Refer to «Verification»(ref-441373-S42716097792011121500000)

Check the resistance of the evaporator temperature sensor. Take the readings between evaporator temperature sensor terminals #3 and #4.

Check the signal cable between climate control module terminal #B3 and evaporator temperature sensor terminal #4. Check for an open-circuit. Check for a short-circuit to supply voltage.

Check the ground lead between control module terminal #B4 and evaporator temperature sensor terminal #3. Check for an open-circuit. Check for a short-circuit to supply voltage.

HINT: A short-circuit on the ground lead may have been caused by a short-circuit to supply voltage. Always check the signal cable for this fault cause as well.

Remedy as necessary.

Other information

1. For the resistance values, see «Electrical/electronic system specifications»(ref-441327-S22800567222011121500000)
2. To replace the evaporator temperature sensor, see «Temperature sensor evaporator»(ref-441328-S03072863592011121500000)
3. To connect the breakout box, see «Connecting the breakout box, climate control module»(ref-441326-S35353694222011121500000)
4. For the voltage of the signal cable, see «Climate control signal specifications»(ref-441327-S29322084422011121500000)
5. See «Checking wiring and terminals. Permanent fault»(ref-441291-S06723382482011121500000)

1. Continue Refer to «Verification»(ref-441373-S06190668922011121500000)

Check the resistance of the outside temperature sensor. Take the readings between the outside temperature sensor terminal #1 and #2.

Check the cable between climate control module terminal #B1 and outside temperature sensor terminal #2. Check for a short-circuit to ground.

Remedy as necessary.

Other information

1. For the resistance values, see «Electrical/electronic system specifications»(ref-441327-S22800567222011121500000)
2. To replace the control module, see «Comfort module»(ref-441328-S27180039832011121500000)
3. To replace the outside temperature sensor, see «Outside temperature sensor»(ref-441328-S11943014702011121500000)
4. To connect the breakout box, see «Connecting the breakout box, climate control module»(ref-441326-S35353694222011121500000)
5. For the voltage of the signal cable, see «Climate control signal specifications»(ref-441327-S29322084422011121500000)
6. See «Checking wiring and terminals. Permanent fault»(ref-441291-S06723382482011121500000)

1. Continue Refer to «Verification»(ref-441373-S37290240372011121500000)

Check the resistance of the outside temperature sensor. Take the readings between the outside temperature sensor terminal #1 and #2.

Check the cable between climate control module terminal #B1 and outside temperature sensor terminal #2. Check for an open-circuit. Check for a short-circuit to supply voltage.

Check the cable between control module terminal #B2 and outside temperature sensor terminal #1. Check for an open-circuit. Check for a short-circuit to supply voltage.

HINT: A short-circuit on the ground lead may have been caused by a short-circuit to supply voltage. Always check the signal cable for this fault cause as well.

Remedy as necessary.

Other information

1. For the resistance values, see «Electrical/electronic system specifications»(ref-441327-S22800567222011121500000)
2. To replace the outside temperature sensor, see «Outside temperature sensor»(ref-441328-S11943014702011121500000)
3. To connect the breakout box, see «Connecting the breakout box, climate control module»(ref-441326-S35353694222011121500000)
4. For the voltage of the signal cable, see «Climate control signal specifications»(ref-441327-S29322084422011121500000)
5. See «Checking wiring and terminals. Permanent fault»(ref-441291-S06723382482011121500000)

1. Continue Refer to «Verification»(ref-441373-S05032535302011121500000)

Applies to left-hand drive cars only

Check the cable between climate control module terminal #A13 and damper motor terminal #2. Check the cable between climate control module terminal #A12 and damper motor terminal #6. Check for an open-circuit.

Applies to right-hand drive cars only

Check the cable between climate control module terminal #A13 and damper motor terminal #6. Check the cable between climate control module terminal #A12 and damper motor terminal #2. Check for an open-circuit.

If the cables are OK, try a new damper motor.

Remedy as necessary.

Other information

1. To remove the climate control module, see «Comfort module»(ref-441328-S27180039832011121500000)
2. To access the air distribution damper motor, see «Damper motor for air distribution»(ref-441328-S34255871022011121500000)
3. To connect the breakout box, see «Connecting the breakout box, climate control module»(ref-441326-S35353694222011121500000)
4. For the voltage of the wiring, see «Climate control signal specifications»(ref-441327-S29322084422011121500000)
5. See «Checking wiring and terminals. Permanent fault»(ref-441291-S06723382482011121500000)

1. Continue Refer to «Self-adjustment of damper motor end positions»(ref-441373-S15829389242011121500000)

Check the cable between climate control module terminal #A14 and damper motor terminal #2. Check the cable between climate control module terminal #A15 and damper motor terminal #6. Check for an open-circuit.

If the cables are OK, try a new damper motor.

Remedy as necessary.

Other information

1. To access the temperature damper motor, see «Temperature damper motor»(ref-441328-S24521969372011121500000)
2. To connect the breakout box, see «Connecting the breakout box, climate control module»(ref-441326-S35353694222011121500000)
3. The voltage in the wiring must be less than 1 V or 2-4 V below battery voltage, depending on the direction in which the motor is turning. When the damper motor is not activated the voltage must be 0 V. For other values, see «Climate control signal specifications»(ref-441327-S29322084422011121500000)
4. For other information, see «Electrical/electronic system specifications»(ref-441327-S22800567222011121500000)
5. See «Checking wiring and terminals. Permanent fault»(ref-441291-S06723382482011121500000)

1. Continue Refer to «Self-adjustment of damper motor end positions»(ref-441373-S36595842992011121500000)