62C-52
AFTER REPAIR Carry out a full check with the diagnostic tool.
V1
MR-453-X79-62C000$080.mif
CLIMATE CONTROL
Fault finding – Fault finding chart
62C
* AC: air conditioning
ALP 8
CONTINUED 2
Using the diagnostic tool statuses and parameters
screen (Injection cold loop sub-function), check
that the temperature signals are consistent (no
sensor drift resulting in incorrect measurement).
– Using parameter PR064 Coolant temperature.
Carry out a conformity check:
– For the coolant temperature sensor,
see 13B, Diesel injection, Fault
summary table or 17B Petrol injection,
Fault summary table.
Replace any faulty components.
Are the temperature signals consistent?
Start the engine and switch on the air conditioning by
pressing the AC button (with a request for maximum cold
temperature and the passenger compartment blower
running).
On the Cold loop sub-function screen, display the
following status: ET018 Air-conditioning request
should be ACTIVE.
Note: the status indicates whether the signal for the AC*
button pressed on the control panel is read by the
injection computer correctly.
Continuity fault on connection 38Z.
Use an ohmmeter to test the continuity on
connection 38Z between components 319
and 120. If there is a repair method
(see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for
repair), repair or replace the wiring.
Is status ET018 ACTIVE?
1
NO
YES
NO
YES
B
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