MR 360 Clio 6 [PDF]

Zitiervorschau

Air conditioning AIR CONDITIONING

77 11 315 302

FEBRUARY 2002

"The repair methods given by the manufacturer in this document are based on the technical specifications current when it was prepared.

EDITION ANGLAISE

All copyrights reserved by Renault.

The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which his vehicles are constructed.

Copying or translating, in part or in full, of this document or use of the service part reference numbering system is forbidden without the prior written authority of Renault.

© RENAULT 2002

This Workshop Repair Manual concerns CLIO II phase 2 vehicles (1.6 16V K4M engine) specified below:

Vehicle type

Turkey specification – Clio 4-door with boot

Manufacture (1)

Turkey (R)

Technical Specification

Market

Marketed names

Worldwide

Renault Symbol (Russia) Renault Clio for the rest of the world

Central Europe: Hungary, Slovenia, Slovakia, Czech Republic, Poland ● Greece ● DOM TOM

Renault Thalia (Central European countries and Greece) Renault Symbol (DOM TOM)

Saudi Arabia, Bahrain, Dubai, Arab Emirates, Kuwait, Oman, Qatar

Renault Clio

Nonmultiplex

●

CCEE Specification – Clio 4-door with boot

Persian Gulf specification – Clio 4-door with boot

Mexico specification – Clio 5-door

Turkey (R)

Turkey (R)

Nonmultiplex

Nonmultiplex

Mexico

Nonmultiplex

Mexico

Renault Clio

Columbia - Venezuela specification – Clio 5-door – Clio 4-door with boot

Colombia (M)

Nonmultiplex

Colombia Venezuela

Renault Symbol

Southern Cone Common Market Specification – Clio 5-door – Clio 4-door with boot

Argentina (L) Brazil (J)

Nonmultiplex

Argentina Brazil

Renault Clio

(1) Manufacture: country of manufacture. The letter in brackets indicates the factory code which appears as the first character of the fabrication number on the vehicle plate.

For more information on the choice of Workshop Repair Manuals for the CLIO II range, refer to Technical Note 3627A.

Air conditioning Contents Page

62A AIR CONDITIONING Introduction Customer complaint Fault finding chart

62A-1 62A-2 62A-3

162A AC Manual

AIR CONDITIONING Fault finding - Introduction

62A

This document contains generic fault finding procedures that apply to all manual climate control computers fitted to the Clio II export version. To carry out fault finding on this system, it is essential to have the following items: – This section of the Fault finding Workshop Repair Manual, – the electrical circuit diagram of the function for the vehicle concerned, – a multimeter.

GENERAL APPROACH TO FAULT FINDING – Locate the Fault finding documents corresponding to the system identified. – Include information contained in the introductory sections.

SPECIAL FEATURES OF THE MANUAL CLIMATE CONTROL SYSTEM The cold loop is controlled by the injection computer and the heating and ventilation mixing and distribution are manually controlled, therefore the climate control computer does not record any faults that can be processed by the diagnostic tool. All faults related to the cold loop, compressor, pressure switch, fan assembly, charge circuit, are diagnosed by the injection computer, to which air conditioning circuit operation requests are transmitted on behalf of the climate control computer. See Injection computer fault finding for a complete fault finding operation on the cold loop. This note covers only looking for faults as a result of customer complaints.

DEALING WITH CUSTOMER COMPLAINTS This section has fault finding charts, which suggest a series of possible causes of the problem. These lines of research are only to be used when the climate control system is not functioning correctly and after a complete fault finding procedure on the cold loop by means of the injection diagnostic has been performed.

COMPUTER CONNECTOR CORRESPONDENCES: – Green computer 15-track connector: connector A. – Black computer 10-track connector: connector B.

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AIR CONDITIONING Fault finding - Customer complaints

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Before working on the vehicle, check that the customer is using the air conditioning system correctly.

NOTES

FAULTY AIR DISTRIBUTION FAULTY AIR DISTRIBUTION

CHART 1

AIR FLOW FAULT

CHART 2

INEFFICIENT WINDSCREEN DEMISTING

CHART 3

POOR VENTILATION PERFORMANCE

CHART 4

NO PASSENGER COMPARTMENT VENTILATION

CHART 5

NO AIR RECIRCULATION

CHART 6

FAULTY HEATING NO HEATING OR INADEQUATE HEATING

CHART 7

TOO MUCH HOT AIR

CHART 8

NO COOL AIR

CHART 9

AIR TOO COLD

CHART 10

POOR AIR CONDITIONING PERFORMANCE

CHART 11

HEATING INADEQUATE IN THE REAR

CHART 12

FUMES IN PASSENGER COMPARTMENT UNPLEASANT ODOURS IN PASSENGER COMPARTMENT

CHART 13

WATER IN PASSENGER COMPARTMENT WATER IS PRESENT IN PASSENGER COMPARTMENT

CHART 14

FAULTY CONTROL PANEL NO CONTROL PANEL LIGHTING

CHART 15

CONTROLS STIFF

CHART 16

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AIR CONDITIONING Fault finding - Fault finding chart

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CHART 1

Faulty air distribution

NOTES

Before working on the vehicle, check that the customer is using the air conditioning system correctly.

Switch the passenger compartment blower to full, the temperature control to maximum heat or maximum cold, and operate the air distribution control. Check that the air outlet is the one selected. Is the customer complaint confirmed?

NO

Air distribution is correct. If necessary, explain again to the customer how the system works.

NO

Check the air distribution flap control cable adjustment, the air ducts and the air vents.

YES Check visually or by touch, on the right-hand side of the air distribution unit, that moving the control moves the sprockets and the lever. Does it move? YES If the fault persists, remove the air distribution unit and check the distribution flaps. Repair if necessary.

Check the connection of the cable to the air distribution unit and the control panel and check the condition of the cable and its retainer. Is it correct?

NO YES

AFTER REPAIR

Change the control cable or repair the connection of the cable (clip) or change the faulty part (control panel or distribution unit).

Check that the system is operating correctly.

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AIR CONDITIONING Fault finding - Fault finding chart

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CHART 1 CONTINUED

YES Check the condition of the moving parts (sprockets, levers etc.) on the air distribution unit and the control panel. Is it correct?

NO

Repair if possible, otherwise replace the distribution unit or the control panel.

YES Remove the air distribution unit and check the distribution flaps. Repair or replace the assembly.

End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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CHART 2

Air flow fault

NOTES

Before working on the vehicle, check that the customer is using the air conditioning system correctly. Special notes: – the resistor unit and the blower are located under the windscreen aperture on the passenger side.

Does the passenger compartment blower with its four speeds work correctly?

NO

Repair, see CHART 5.

YES Check that the air circuit (particle filter, scuttle panel grille, air vents and extractors etc.) is not blocked. Check that the blower casing is in good condition and is fixed in its position. Repair, clean or replace the particle filter if necessary.

Ensure that the blower unit is properly airtight. Repair if necessary.

Check that the air recirculation flap is not stuck in air recirculation position using CHART 6.

Does the problem disappear when the air distribution is changed?

YES

Ensure that all the air vents are open. If the fault persists, refer to CHART 1.

NO Check the condition of the black 15-track connector of the resistor unit. If necessary, repair or replace the connector.

Check the after ignition feeds in track 11 of connector A and on tracks A4 and A5 of connector B of the air conditioning control panel, and the earths on track 9 of connector A of the air conditioning control panel and on tracks 14 and 15 of the resistor unit.

AFTER REPAIR

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CHART 2 CONTINUED

YES Check that the speed selector on the control panel is in correct working order, making sure that there is an after ignition feed on tracks B5, B4, B1 and A1, A2 of connector B of the control panel respectively for speeds 1, 2, 3 and 4, with the connector connected.

Disconnect connector B from the control panel and check the insulation, continuity and lack of interference resistance on the following connections: control panel connector B track B5 track 3 resistor unit 15-track connector control panel connector B track B4 track 4 resistor unit 15-track connector control panel connector B track B1 track 5 resistor unit 15-track connector control panel connector B track A1 track 12 resistor unit 15-track connector control panel connector B track A2 track 13 resistor unit 15-track connector Repair if necessary.

Replace the resistor unit if the resistance is not approximately: speed 1 (track 3 and 5): 2.0 Ω ± 0.2 Ω speed 2 (track 4 and 3): 1.2 Ω ± 0.2 Ω speed 3 (track 5 and 4): 0.6 Ω ± 0.2 Ω

End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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CHART 3

Inefficient windscreen demisting

NOTES

Special notes: check that the inside of the windows are not dirty, as this reduces the efficiency of the demister.

Check that the air extractors are not blocked. Repair if necessary. Is the fault still present?

NO

End of fault finding.

NO

End of fault finding.

YES

See CHART 1.

YES

See CHART 2.

YES

See CHART 7.

YES Check that there are no water leaks into the passenger compartment which would significantly increase the humidity and reduce the effectiveness of the demisting. Repair if necessary (see CHART 14). Is the fault still present? YES Is it an air distribution problem? NO Is it an air flow problem? NO Is it a heater performance problem? NO

AFTER REPAIR

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AIR CONDITIONING Fault finding - Fault finding chart

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CHART 3 CONTINUED

Check that the water condenser outlet is not blocked. Repair if necessary.

Check that the recirculation flap is not blocked (see CHART 6). Repair if necessary.

End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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CHART 4

62A

Ventilation performance poor

Before working on the vehicle, check that the customer is using the air conditioning system correctly.

NOTES

Is the air flow correct?

NO

See CHART 2.

NO

See CHART 1.

YES Is the air distribution correct? YES End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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CHART 5

No passenger compartment ventilation

NOTES

Before working on the vehicle, check that the customer is using the air conditioning system correctly. Special notes: – the resistor unit and the blower are located under the windscreen aperture on the passenger side.

Check that the fuses are in good condition. Repair if necessary.

Check the condition of the black 15-track connector of the resistor unit. If necessary, repair or replace the connector.

Check the after ignition feeds on track 11 of connector A and on tracks A4 and A5 of connector B of the control panel, and earths on track 9 of connector A of the control panel and on tracks 14 and 15 of the black 15-track connector of the resistor unit.

Check that the speed selector on the control panel is in correct working order, making sure that there is an after ignition feed on tracks B5, B4, B1 and A1, A2 of connector B of the control panel respectively for speeds 1, 2, 3 and 4, with the connector connected.

Disconnect the connector from the control panel and check the insulation, continuity and lack of interference resistance on the following connections: control panel connector B track B5 track 3 resistor unit 15-track connector control panel connector B track B4 track 4 resistor unit 15-track connector control panel connector B track B1 track 5 resistor unit 15-track connector control panel connector B track A1 track 12 resistor unit 15-track connector control panel connector B track A2 track 13 resistor unit 15-track connector Repair if necessary.

AFTER REPAIR

Check that the system is operating correctly.

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AIR CONDITIONING Fault finding - Fault finding chart

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CHART 5 CONTINUED

Replace the resistor unit if the resistance is not approximately: speed 1 (track 3 and 5): 2.0 Ω ± 0.2 Ω speed 2 (track 4 and 3): 1.2 Ω ± 0.2 Ω speed 3 (track 5 and 4): 0.6 Ω ± 0.2 Ω

Check the condition of the black 2-track connector of the resistor unit. If necessary, repair or replace the connector.

Disconnect the connector from the resistor unit and check the insulation, continuity and absence of interference resistance on the connections: resistor unit black 15-track connector tracks 3, 4 and 5 red wire of the passenger compartment blower resistor unit black 15-track connector tracks 14 and 15 black wire of the passenger compartment blower Repair if necessary.

Remove the engine cooling fan and check its resistance. Replace the fan if the resistance is not approximately: 0.2 Ω < R > 1 Ω.

Ensure that the fan blades have not broken or slipped out of position. Replace the fan assembly if necessary.

End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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CHART 6

NOTES

62A

No air recirculation

Before working on the vehicle, check that the customer is using the air conditioning system correctly. Special notes: – the resistor unit, the blower and the recirculation flap are located under the windscreen aperture on the passenger side.

Check that the fuses are in good condition. Repair if necessary.

Check either visually or by listening that the recirculation flap is in correct working order. Is the flap functioning?

YES

NO

Check the seals and the condition of the air ducts, the recirculation flap and the air vents making sure that they are not blocked.

Check the after ignition feeds on track 11 of connector A and on tracks A4 and A5 of connector B of the control panel, and earths on track 9 of connector A of the control panel and on tracks 14 and 15 of the black 15-track connector of the resistor unit.

Check the condition of the black 15-track connector of the resistor unit. If necessary, repair or replace the connector.

AFTER REPAIR

Check that the system is operating correctly.

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AIR CONDITIONING Fault finding - Fault finding chart

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CHART 6 CONTINUED

Disconnect the connector from the control panel and check the insulation, continuity and lack of interference resistance on the following connections: control panel connector A track 15 track 2 resistor unit 15-track connector control panel connector A track 14 track 1 resistor unit 15-track connector Repair if necessary.

Ensure the continuity of the resistor unit connections: resistor unit 15-track connector track 1 track 1 of the resistor unit 2-track connector resistor unit 15-track connector track 2 track 2 of the resistor unit 2-track connector Replace the resistor unit if the connections are not confirmed.

Check the resistance between tracks 1 and 2 of the black 2-track connector of the resistor unit. If the resistance is not approximately 38 Ω ± 0.2 Ω remove the fan assembly to access the air recirculation motor.

Check the condition of the recirculation motor, and its supply harness.

End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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AIR CONDITIONING Fault finding - Fault finding chart

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FAULT FINDING CHART 7

No heating or inadequate heating

NOTES

Before working on the vehicle, check that the customer is using the air conditioning system correctly.

NO

See CHART 2 Air flow fault.

NO

See CHART 1 Air distribution fault.

YES

If necessary, explain again to the customer how the system works.

Is the air flow correct? YES Is the air distribution correct? YES With the engine warm, turn the heating on full. Is the delivery air hot? NO Check the condition and adjustment of the mixing flap control cables.

Check the condition and correct working of the mixing flap.

AFTER REPAIR

Check that the system is operating correctly.

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CHART 7 CONTINUED

Check the seals and the condition of the air ducts, the recirculation flap and the air vents making sure that they are not blocked. Is the fault still present?

NO

End of fault finding.

YES Are the heater matrix pipes on the bulkhead hot?

NO

YES

Carry out a check on the coolant circuit and ensure that the thermostatic valve opens at the correct temperature. Replace the valve if necessary. Is the fault still present?

YES

NO

Check that the heater matrix is not blocked, and clean or replace if necessary. Is the fault still present?

End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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CHART 8

62A

Too hot

Before working on the vehicle, check that the customer is using the air conditioning system correctly.

NOTES

Is the air flow correct?

NO

See CHART 2 Air flow fault.

NO

See CHART 1 Air distribution fault.

YES Is the air distribution correct? YES Check the condition and adjustment of the mixing flap control cable.

Check the condition and working order of the mixing flap.

Check the seals and the condition of the air ducts, the recirculation flap and the air vents making sure that they are not blocked.

Carry out a check on the coolant circuit and ensure that the thermostatic valve opens at the correct temperature. Replace the valve if necessary.

AFTER REPAIR

Check that the system is operating correctly.

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CHART 8 CONTINUED

Check that the recirculation flap is in the external air position. Repair if necessary.

End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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CHART 9

No cool air

NOTES

Before working on the vehicle, check that the customer is using the air conditioning system correctly.

Is the air flow correct?

NO

See CHART 2 Air flow fault.

NO

See CHART 1 Air distribution fault.

YES Is the air distribution correct? YES Check for possible leaks in the air conditioning circuit.

Check the amount of refrigerant fluid (660 g ± 35 g).

Check the condition of the air conditioning compressor belt and its tension. Repair if necessary.

Check the condition of the fuses. Repair if necessary.

Check the condition of the control panel connector and the injection computer connectors. Repair if necessary.

AFTER REPAIR

Check that the system is operating correctly.

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CHART 9 CONTINUED

Disconnect the connector from the control panel and check the insulation, continuity and lack of interference resistance on the following connections: control panel connector A track 12 injection computer (refer to the diagram for the vehicle and year of make in question) control panel connector A track 13 track 9 15-track resistor unit connector Repair if necessary.

With the engine running, the air conditioning operating and at least one ventilation speed selected, check for a 12 volts supply to track 12 of connector A of the control panel in order to confirm that the request for air conditioning has been sent from the control panel to the injection computer. Is there a feed?

YES

Perform a complete check of the components making up the air conditioning system, by carrying out fault finding on the injection system.

NO Check the after ignition feeds on track 11 of connector A and on tracks A4 and A5 of connector B of the control panel, as well as the earth on track 9 of connector A of the control panel. If the fault persists, replace the climate control computer.

End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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FAULT FINDING CHART 10

Air too cold

NOTES

Before working on the vehicle, check that the customer is using the air conditioning system correctly.

Is the air flow correct?

NO

See CHART 2 Air flow fault.

NO

See CHART 1 Air distribution fault.

YES Is the air distribution correct? YES Check the condition and adjustment of the mixing flap control cable.

Check the condition and the seals of the mixing flap.

Check the engine temperature is rising correctly. If necessary, check and bleed the cooling circuit.

With the engine running and air conditioning switched off check that there is no air conditioning request from the control panel to the injection computer on track 12 connector A of the climate control computer. If there a feed?

YES

Replace the control panel.

NO Check the injection system using the diagnostic tool.

End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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FAULT FINDING CHART 11

Poor air conditioning performance

NOTES

Before working on the vehicle, check that the customer is using the air conditioning system correctly.

Is the air flow correct?

NO

See CHART 2 Air flow fault.

NO

See CHART 1 Air distribution fault.

YES Is the air distribution correct? YES Check the condition and tension of the air conditioning compressor belt. Repair if necessary.

NO

End of fault finding.

Is the fault still present?

YES Check for possible leaks in the air conditioning system.

Check the amount of refrigerant fluid (660 g ± 35 g).

Check that the recirculation flap is in correct working order. Check the condition and adjustment of the control cable if necessary.

Check that the mixing flap is in correct working order.

If the fault persists check the injection system using the diagnostic tool.

AFTER REPAIR

End of fault finding.

Check that the system is operating correctly.

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CHART 12

62A

Rear seat heating inadequate (depending on equipment level)

NOTES

None.

Is the air flow correct?

NO

See CHART 2 Air flow fault.

NO

See CHART 1 Air distribution fault.

NO

Clear the air outlets.

YES Is the air distribution correct? YES Check that the rear air vents at the rear of the central console are not blocked. YES Remove the central console and check that the connection and sealing between the air distribution unit and the heating duct to the rear seats is correct. Repair if necessary.

End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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CHART 13

NOTES

62A

Unpleasant odours in the passenger compartment

None.

Check that the passenger compartment filter is not blocked or worn. Replace it if necessary. Is the fault still present?

NO

End of fault finding.

NO

End of fault finding.

NO

End of fault finding.

YES Ensure that the evaporator outlet pipe is not blocked. Repair if necessary. Is the fault still present? YES Check that the heating unit is completely tight and there are no leaks into the engine compartment. Repair if necessary. Is the fault still present?

YES Place the vehicle on a lift. Run an extension through the evaporator outlet pipe to apply the air conditioning freshener. Spray the entire contents of the can. Leave the freshener to work for 15 minutes.

End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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CHART 14

NOTES

62A

Water present in the passenger compartment

None.

Pressurise the cooling circuit. Is there any coolant leaking into the vehicle?

YES

Repair.

NO

End of fault finding.

NO

The leak is not coming from the air conditioning system.

NO Ensure that the evaporator outlet pipe is not blocked. Repair if necessary. Is the fault still present? YES The problem may be caused by ice in the evaporator. Does the customer complain of water droplets spraying out of the air vents? YES Repair.

End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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CHART 15

NOTES

62A

No control panel lighting

Special notes: – the control panel only lights up when the side lights are switched on. – there is a shunt in place of the dimmer on models with manual air conditioning systems.

Check the connection and conditionof the connectors coming from the control panel. Disconnect the connector from the control panel and check the insulation, continuity and lack of interference resistance on the following connections: control panel connector A track 8 track 3 of the dimmer earth track 1 of the dimmer Is the fault still present? NO

YES With the side lights lit, check for a supply on track 7 connector A of the control panel. Repair if necessary.

End of fault finding.

Disconnect the connector from the control panel and check the insulation, continuity and lack of interference resistance on the following connection: control panel connector A track 13 + side lights (refer to the diagram for the vehicle and year of make in question). Repair if necessary. Is the fault still present? YES

NO

Replace the control panel.

AFTER REPAIR

End of fault finding.

Check that the system is operating correctly.

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FAULT FINDING CHART 16

Controls stiff

NOTES

This customer complaint applies to both manual controls, the air distribution control and the mixing control.

Check the routing of the control cable. Eliminate possible stresses (bending, restraining). Repair if necessary. Is the fault still present?

NO

End of fault finding.

NO

Replace the control panel or the flap unit.

YES Unfasten the cable on the side of the fan and check the manoeuvrability of each part, control button and flap control. Is it correct? YES If the fault persists, replace the flap control cable.

End of fault finding.

AFTER REPAIR

Check that the system is operating correctly.

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