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Lancia Thesis Factory Service Manual (2002-2009)22 · Fault diagnosis
22 · Diagnostics

Additional heater is not activated in rest mode

Make
Lancia
Model
Thesis Factory Service Manual
Year
2002–2009
Section
Climate control › Additional heater is not activated in rest mode
Fault diagnosisAdditional heater is not activated in rest mode

ADDITIONAL HEATER IS NOT ACTIVATED IN REST MODE

With the ignition on and the engine switched off, when there is a request via the Connect to operate the additional heater it is not activated;

activation in this mode involves the operation of the circulation pump with the engine coolant temperature above 50°C and the heater as well with the coolant temperature below 50 °C;

if the heater is activated, it is deactivated when the temperature of the coolant reaches 70°C.

STEPOPERATIONS TO BE CARRIED OUTTEST RESULTS
0PRELIMINARY CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the battery chargeCheck that the fuel level is not in the "reserve" conditionsMove on to Step1. Charge not correct1. Recharge, if necessary, replace the battery
2. fuel level in "reserve" conditions2. Top up level
1CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION

With the tester (Examiner or other instrument) connected, check the CAN network information for:

  • no control unit not activated;
  • that there are no faulty control units;
  • no control unit with faulty CAN line;
Move on to Step1. Presence of faults1. Continue following the instructions for the diagnostic equipment
2. Climate control system control unit errorMove on to Step
2CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION

Keeping the diagnostic equipment (Examiner or other instruments) connected to the diagnostic socket, check:

  • that there are no faults in the climate control system node
Move on to Step1. Presence of faults1. Continue following the instructions for the diagnostic equipment
2. 1. No communication with the control unitMove on to Step
3CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION

Keeping the diagnostic equipment (Examiner or other instruments) connected to the diagnostic socket, check:

  • no faults in the supplementary heater control unit
Move on to StepPresence of faultsContinue following the instructions for the diagnostic equipment
4CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer present

Parts & tools for this job For 2002 Lancia Thesis

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