| | Test results |
| 0 | PRELIMINARY CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the engine coolant level is within the preset levels and that the refrigerant fluid circulates correctly in the system | Move on to Step 1 | 1. Engine coolant level too low2. Coolant does not circulate correctly: thermostat valve operating incorrectly | 1.Restore the correct level checking that there are no leaks Op. 0010T84 COOLANT FOR AIR CONDITIONING SYSTEM - DEHYDRATE AND REPRESSURIZE See table K025 ENGINE COOLANT TEMPERATURE GAUGE NOT WORKING |
| 1 | CHECK ON CORRECT CLIMATE CONTROL SYSTEM OPERATION | All OK | Problems encountered | Operation |
|---|
| For versions with automatic climate control;With the engine on and the compressor off, in manual mode with the temperature knob at the maximum hot HI position.Also set the recirculation button to the closed position and set the fan speed to 6 bars (display) and the distribution to front ventilation. Use the diagnostic tester to check that the engine temperature reaches at least 70 °C.Check that the air temperature at the front distribution outlet is greater than 60 °C. | End of diagnosis | The temperature of the air coming out of the vents is not the desired one | Move on to Step 2 |
| 1 | CHECK ON CORRECT CLIMATE CONTROL SYSTEM OPERATION | All OK | Problems encountered | Operation |
|---|
| For versions with manual climate control;With the engine on and the compressor off, in manual mode with the temperature knob at the maximum hot HI position.Also set the recirculation button to the closed position and set the fan speed to the 3rd setting and the distribution to front ventilation.Use the diagnostic tester to check that the engine temperature reaches at least 70 °C.Check that the air temperature at the front distribution outlet is greater than 60 °C | End of diagnosis | The temperature of the air coming out of the vents is not the desired one | Move on to Step 2 |
| 2 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| For versions with automatic climate control;Connect the diagnostic equipment and check:- that there are no errors at the air mixing actuators;- that there are no faults in the engine temperature sensor | Move on to Step 3 | 1. Short circuit error at the air mixture actuators2. Error in the engine temperature sensor | 1. Move on to Step 32. Continue as described by the diagnostic equipment |
| 2 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| For versions with manual climate control;Connect the Examiner diagnostic equipment and check that there are no errors in the engine temperature sensorCheck the mixture kinematic components are working properly | Move on to Step 5 | 1.Error in the engine temperature sensor2.Check the mixture kinematic components are working properly | 1. Continue as described by the diagnostic equipment2. Restore the correct operation of the mixture kinematic components |
| 3 | ELECTRICAL CIRCUIT CHECK | All OK | Problems encountered | Operation |
|---|
| For versions with automatic climate control;Check whether the electrical wiring connections are loose:Disconnect and check for damage in the connector contacts/reconnect the connection to the actuator.Check the continuity/insulation of the electrical connection:- of the air mixing actuator/s- the connection on the control unit | Move on to Step 4 | 1. Electrical connections loose or damaged2. Electrical connection broken or not insulated | 1. Renew the electrical connections See E6020 AIR CONDITIONING 2. Restore the continuity/insulation of the electrical connection See E6020 AIR CONDITIONING |
| 4 | CHECK ON CORRECT OPERATION USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| For versions with automatic climate control;Check for persistent errors in the air mixer actuators | End of diagnosis | Air mixing actuator error | Move on to Step 5 |
| 5 | CHECK ON CORRECT OPERATION OF MIXTURE ACTUATOR KINEMATIC MECHANISM | All OK | Problems encountered | Operation |
|---|
| For versions with automatic climate control;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 See Test 5040DH SEQUENTIAL PROCEDURE FOR CHECKING MIXTURE AND DISTRIBUTION ACTUATOR OPERATION | Move on to Step 6 | 1. Incorrect operation of actuator2. Physical impediment to the rotation of the flap3. Incorrect operation of actuator from control on climate control system control unit | 1. Replace the mixture actuator Op. 5040D94 AIR CONDITIONING LEFT UPPER AIR DISTRIBUTION FLAP MOTOR (DEFROST) - R.R and/or Op. 5040D96 AIR CONDITIONING RIGHT UPPER DISTRIBUTION FLAP MOTOR (DEFROST) - R.R 2. If possible, restore the correct operation of the flap, otherwise replace the distributor unit3. Replace the climate control system control unit Op. 5040D14 CONTROL UNIT WITH AUTOMATIC AIR CONDITIONING CONTROL PANEL - R.R. |
| 6 | AIR MIXTURE ACTUATOR FLAP CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the air mixture actuator flap completes its travel without any impediment | End of diagnosis | 1. Flap travel incomplete2. Flap damaged3. Kinematic mechanism damaged | 1. Release the air mixture actuator flap from the impediment 2. Replace the flap3. Repair kinematic mechanism |
