With the engine started, set the climate control system control unit to the AUTO position, adjust the temperature to 22 °C, place the recirculation at the outside air intake and the distribution to the front position.

Adjust the fan button (+ side), gradually increasing the speed set and then decrease the speed using the button (- side), thereby checking the effect of the air flow rate variation.

Connect the diagnostic equipment and check:

- that there are no errors at the passenger compartment fan;

- that there are no errors at the distribution actuator;

- that there are no errors linked to the fan (short circuit errors)

1. Error at the passenger compartment fan.

2. Fan operating module error.

3. Error at the distribution actuator.

4. Short circuit error.

1. Move on to Step 5

2. Move on to Step 5

3. Move on to Step 6

4. Move on to Step 4

1. Air ducts or vents obstructed.

2. Pollen filter blocked.

1. Restore the operation of the air ducts and the vents, removing any material causing an obstruction.

2. Replace the pollen filter

Op. 5010B08 CLIMATE CONTROL OUTSIDE AIR PURIFYING (POLLEN) FILTER - R.R.

Renew the electrical connections

See E6020 AIR CONDITIONING

Check whether the electrical wiring connections are loose.

Disconnect/reconnect the connection to the engine mounting.

Disconnect the connector and connect to a feeder.

Under these conditions the motor should rotate at maximum speed, indicating that the operating module is not working

1. Electrical connections loose

2. The fan does not work.

3. The operating module does not work.

1. Renew the correct connections

See E6020 AIR CONDITIONING

2. Replace the fan

Op. 5040C30 AIR CONDITIONING FAN - R.R.

3. Replace the fan operating module

Check whether the electrical wiring connections are loose.

Disconnect and visually inspect for damage at the connector contacts and reconnect the connection to the motor mounting.

If it persists, before replacing the actuator, check its operation by manually activating the function that the actuator should carry out.

With the engine running, switch on the fan at maximum speed.

Place the flaps in the various distribution positions via the control/control unit (manually).

Check the air flow in the passenger compartment by placing your hand at the vents.

1. Electrical connections loose or damaged.

2. There is no air flow intake into the passenger compartment through the vents.

1. Renew the electrical connections

See E6020 AIR CONDITIONING

2. Move on to Step 7

1. The actuator does not turn.

2. Kinematic components or flaps broken/stuck

1. Replace the distribution actuator

2. Replace the component that is faulty.

1. Air ducts or vents obstructed

2. The flow of air does not correspond to the distribution selected

1. Restore the operation of the air ducts and the vents, removing any material causing an obstruction.

2. Move on to Step 5

Check for loose electrical wiring connections and disconnect, visually inspecting for any damage to the connector contacts.

Reconnect the connection to the resistor.

Check that the fan is working at the maximum speed: if it only works at the maximum speed, the relay is broken.

Check whether the resistor has blown by checking the electrical continuity

1. Electrical connections loose or damaged.

2. Relay broken.

3. Resistance values faulty.

1. Renew the electrical connections

See E6020 AIR CONDITIONING

2. Replace the ceramic resistor

3. Replace the ceramic resistor

Op. 5040C48

Check for loose electrical wiring connections and disconnect, visually inspecting for any damage to the connector contacts.

Reconnect the connection to the selector at the climate control system control unit.

Check whether the selector on the control unit is interrupted by checking the electrical continuity

1. Electrical connections loose or damaged.

2. Fan not working.

3. Power supply to the relays not correct.

1. Renew the electrical connections

See E6020 AIR CONDITIONING

2. Replace the speed selector knob

3. Replace the climate control system control unit

Check whether the electrical wiring connections are loose

See E6020 AIR CONDITIONING

Disconnect, visually inspecting for any damage to the connector contacts.

Reconnect the connection to the engine mounting.

Check that it rotates at all speeds by activating it using the switch.

1. Electrical connections loose or damaged.

2. Fan not working.

1. Renew the electrical connections

See E6020 AIR CONDITIONING

2. Replace the fan

Op. 5040C30 AIR CONDITIONING FAN - R.R.

Check whether the electrical wiring connections are loose.

Disconnect, visually inspecting for any damage to the connector contacts.

Reconnect the connection to the relay.

Check that the relay is working properly by providing it with a direct 12 V supply.

1. Electrical connections loose or damaged.

2. Maximum speed operating relay not working

1. Renew the electrical connections

See E6020 AIR CONDITIONING

2. Replace the maximum speed operating relay

Visually check the correct operation of the mixer actuator from the climate control unit temperature control knob.

Check whether the control on the control unit is interrupted by checking the electrical continuity

1. Incorrect operation of actuator

2. Physical impediment to the rotation of the flap.

3. Incorrect operation of actuator from control on climate control system control unit.

1. Move on to Step 7

2. Replace the control unit

3. Replace the climate control system control unit

1. Faulty actuator operation.

2. Resistance values erroneous.

1. Replace the distribution actuator

2. Replace the distribution actuator