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Fiat Seicento Factory Service Manual (1998-2010)12 · Diagnosis
12 · Diagnostics

Diagnosis table

Make
Fiat
Model
Seicento Factory Service Manual
Year
1998–2010
Section
Climate control › Diagnosis table
DiagnosisDiagnosis table · page 1 of 3

Diagnosis table

L10 Climate control does not cool

The fan sends air to the passenger compartment normally but this air is sent at outside temperature and is not cooled.

NOTE: Cooling circuit engagement enabling is controlled by both the climate control ECU and the engine ECU. Therefore, if the climate control does not cool under certain particular conditions, this is correct.

For further details, see DESCRIPTION AND OPERATION 1056 and DESCRIPTION AND OPERATION 5040

Step Validity Operation to be performed Test results
OK ⚠ 🔧
1 CHECK SYSTEM PRESSURE
Check system pressure: TESTS: 5040 Test B		 All OK
Go to Step 7		 Problems found
Pressure does not change: the compressor does not work		 Intervention
Go to Step 2
High pressure does not rise or low pressure falls too much: insufficient fluid Recharge the system: PROCEDURE OP. 5040A10. Go to Step 6
High pressure keeps rising: too much fluid Recharge the system: PROCEDURE OP. 5040A10. Go to Step 6
2 CHECK WITH DIAGNOSTIC TOOL
Connect the diagnostic tool (Examiner or other tool) to the diagnostic socket
– Check there are no errors in the engine ECU
– Plausibility of all parameters		 All OK
Go to Step 3		 Problems found
Error detected in the ECU		 Intervention
Continue as shown by the diagnostic tool
No dialogue with ECU Restore:
– connection between engine ECU and diagnostic socket (Wiring diagram: E5030 “Petrol engine electronic engines”)

(Cont..)

Parts & tools for this job For 1998 Fiat Seicento

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