Diagnosis - Fault Locating Tree

FLT 1 AIR DISTRIBUTION PROBLEMS

NOTES Before any work, check that the customer is using the air conditioning correctly.

Air conditioning not regulated.

AFTER REPAIR Check that the system operates correctly.

FLT 1 CONTINUED

AFTER REPAIR Check that the system operates correctly.

FLT 2 AIRFLOW PROBLEM

NOTES Before any work, check that the customer is using the air conditioning correctly.

Air conditioning not regulated.

AFTER REPAIR Check that the system operates correctly.

FLT 3 HEATING LACKS EFFECTIVENESS

NOTES Before any work, check that the customer is using the air conditioning correctly.

Air conditioning not regulated.

AFTER REPAIR Check that the system operates correctly.

FLT 3 CONTINUED

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 4 NO HEATING

NOTES Before any work, check that the customer is using the air conditioning correctly.

Air conditioning not regulated.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 5 TOO MUCH HEATING

NOTES Before any work, check that the customer is using the air conditioning correctly.

Air conditioning not regulated.

AFTER REPAIR Check that the system operates correctly.

FLT 6 INSUFFICIENT HEATING AT REAR SEATS

NOTES None

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 7 LACK OF DEFROST / DEMIST EFFECTIVENESS

NOTES Check that the inside of the windows is clean.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 8 LACK OF VENTILATION EFFECTIVENESS

NOTES None

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 9 CABIN BLOWER DOES NOT OPERATE

NOTES Before any work, check that the customer is using the air conditioning correctly.

Air conditioning not regulated.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 10 STIFF CONTROLS (cabin noise)

NOTES None.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 11 RECIRCULATION FLAP DOES NOT OPERATE

NOTES Before any work, check that the customer is using the air conditioning correctly.

Air conditioning not regulated

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 12 AIR CONDITIONING PROBLEMS No cooling

NOTES Air conditioning not regulated.

The cabin blower operates.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 12A AIR CONDITIONING PROBLEMS No cooling

NOTES Air conditioning not regulated.

The cabin blower operates.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 13 AIR CONDITIONING PROBLEMS Too much cooling

NOTES Before any work, check that the customer is using the air conditioning correctly.

Air conditioning not regulated.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 14 AIR CONDITIONING PROBLEMS Lack of effectiveness

NOTES Before any work, check that the customer is using the air conditioning correctly.

Air conditioning not regulated.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 14 A AIR CONDITIONING PROBLEMS Lack of effectiveness

NOTES Before any work, check that the customer is using the air conditioning correctly.

Air conditioning not regulated.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 14 B AIR CONDITIONING PROBLEMS Lack of effectiveness

NOTES Before any work, check that the customer is using the air conditioning correctly.

Air conditioning not regulated.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

FLT 15 COOLING FAN DOES NOT OPERATE

NOTES Air conditioning not regulated. The compressor operates.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.

AFTER REPAIR Check that the disconnected components are properly reconnected.

Check that the system operates correctly.