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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1499 (Heating & Air Conditioning (On Board Diagnostic)) >> 01 On Board Diagnostic (OBD) >> Output Diagnostic Test Mode (DTM) (function 03) >> Activated Actuators

Activated Actuators

WARNING: This page is about a different car, the 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
Indicated on display Specified function Corrective action
A/C Compressor Regulator Valve N280 (observe notes)
  • The A/C Compressor Regulator Valve N280 is switched on and off at 5-second intervals.
  • This causes the compressor to be switched on and off.
  • The A/C Compressor Regulator Valve N280 is activated such that there is a current flow of approx. 0.65 to 0.8 A.
NOTE:
  • At present, the A/C Compressor Regulator Valve N280 is only activated when the engine is not running. If the engine is running, this control element is not displayed during Output Diagnostic Test Mode (DTM) diagnosis (depending on version of operating and display module, Climatronic Control Module J255) by the Diagnostic Operation System VAS 5051A and not activated by the operating and display module, Climatronic Control Module J255.
  • The regulating valve is installed in the compressor → A/C Compressor Regulator Valve N280
  • The current flow with the A/C Compressor Regulator Valve N280 activated can be measured for example using a current probe measuring leads 1 2 → Automatic Climate Control System, electrical testing .
  • If there is a further compressor shutoff condition in addition to compressor shutoff condition "5 = Engine speed less than 300 RPM", the A/C Compressor Regulator Valve N280 is not activated.
Indicated on display Specified function Corrective action
Fresh Air Blower V2
  • Fresh Air Blower V2 in operation
  • The Fresh Air Blower speed changes continuously within 5 to 8 seconds between 0% and 88% (100%) of the maximum speed
  • Check freedom of movement of Fresh Air Blower V2
  • Use wiring diagram to check positive and Ground (GND) connection to Fresh Air Blower Control Module J126
  • Check Fresh Air Blower Control Module J126
  • Use wiring diagram to check wiring between Fresh Air Blower Control Module J126 and operating and display module, Climatronic Control Module J255
WARNING: Fan is switched on Info display  
  WARNING:  
  After the → button is next pressed, the Coolant Fan V7 is/are switched on.  
CAUTION: Keep hands out of Coolant Fan V7 area.
Indicated on display Specified function Corrective action
Coolant Fan Control (FC)Control Module J293, speed "1" + "2" (observe notes)
  • The operating and display module, Climatronic Control Module J255 transmits the request for activation of the Coolant Fan V7 (via the CAN-Bus system) to the relevant engine control module. Activation changes constantly within approx. 10 to 30 seconds between 0% and 30 to 100% of maximum speed (depending on engine control unit).
  • By way of the Coolant Fan Control (FC)Control Module J293 and with the engine running, the relevant engine control module switches the fan from 0% to 30 to 100% of the Coolant Fan V7 speed (depending on engine control unit).
  • The Coolant Fan V7 speed changes depending on activation (from "Off" to the "maximum speed" requested by the engine control module).
  • Check DTC memory of operating and display module, Climatronic Control Module J255. Malfunctions should not be displayed → Diagnostic Trouble Code (DTC) Memory, checking (function 02) .
  • Check DTC memory of relevant engine control module and check activation of Coolant Fan V7 by engine control unit via Coolant Fan Control (FC)Control Module J293 "Guided Fault-Finding" Vehicle Diagnosis, Testing Info. System VAS5051B or Vehicle Diagnosis Service Syst. VAS5052.
  • Check power supply and Ground (GND) connection to Coolant Fan Control (FC)Control Module J293 and to Coolant Fan V7.
NOTE:
  • Start the engine if activation of the Coolant Fan V7 must be checked. The relevant engine control module only switches on the Coolant Fan V7 when the engine is running.
  • The request for activation of the Coolant Fan V7 is transmitted via the CAN-Bus comfort system by the operating and display module, Climatronic Control Module J255 to the Instrument Cluster Control Module J285. The Instrument Cluster Control Module J285 (gateway) then transmits the request to the drive CAN-Bus system to which the relevant engine control module is connected. By means of a square-wave signal, the engine control module subsequently activates the Coolant Fan Control (FC)Control Module J293 and the Coolant Fan Control (FC)Control Module J293 switches on the Coolant Fan V7.
  • Depending on the version of the operating and display module, Climatronic Control Module J255, the Coolant Fan V7 is either activated in speeds "1" and "2" in one test step or switching may be necessary for activation of speed "2".
Indicated on display Specified function Corrective action
Interior Temperature Sensor Fan V42
  • The Interior Temperature Sensor Fan V42 is switched on and off at 5-second intervals.
  • Installed in operating and display module, Climatronic Control Module J255
  • Smoke is drawn in through the intake frame of the Interior Temperature Sensor Fan V42
NOTE:
  • Use smoke to check operation of Interior Temperature Sensor Fan V42 (hold smoke generator in front of intake frame installed in operating and display module, Climatronic Control Module J255).
  • The Interior Temperature Sensor Fan V42 is permanently installed in the operating and display module, Climatronic Control Module J255 and cannot be replaced separately.
Indicated on display Specified function Corrective action
Left Temperature Flap Motor V158
  • The Left Temperature Flap Motor V158 moves from stop to stop
  • Check freedom of movement of left temperature flap
  • Open all instrument panel vents.
  • The Fresh Air Blower V2 runs at approx. 60 % of maximum speed
  • The temperature of the air flowing out of the left instrument panel vents changes (with warm engine)
  • Use wiring diagram to check wiring between Left Temperature Flap Motor V158 and operating and display module, Climatronic Control Module J255 for open circuit or interchange
  • Check Left Temperature Flap Motor V158 → Automatic Climate Control System, electrical testing .
Right Temperature Flap Motor V159
  • The Right Temperature Flap Motor V159 moves from stop to stop
  • Check freedom of movement of right temperature flap
  • Open all instrument panel vents.
  • The Fresh Air Blower V2 runs at approx. 60 % of maximum speed
  • The temperature of the air flowing out of the right instrument panel vents changes (with warm engine)
  • Use wiring diagram to check wiring between Right Temperature Flap Motor V159 and operating and display module, Climatronic Control Module J255 for open circuit or interchange
  • Check Right Temperature Flap Motor V159 → Automatic Climate Control System, electrical testing .
Indicated on display Specified function Corrective action
Central Air Flap Motor V70
  • The Central Air Flap Motor V70 moves from stop to stop
  • Check freedom of movement of central flap
  • Open all instrument panel vents.
  • The Fresh Air Blower V2 runs at approx. 60 % of maximum speed
  • The footwell/defroster flap is set to "Air to footwell" position
  • The air distribution changes from footwell/defrost to instrument panel vents
  • Use wiring diagram to check wiring between Central Air Flap Motor V70 and operating and display module, Climatronic Control Module J255 for open circuit or interchange
  • Check Central Air Flap Motor V70 → Automatic Climate Control System, electrical testing .
Defroster Flap Motor V107
  • The Defroster Flap Motor V107 moves from stop to stop
  • Check freedom of movement of footwell/defroster flap
  • Open all instrument panel vents.
  • The Fresh Air Blower V2 runs at approx. 60 % of maximum speed
  • The central flap is closed (air to footwell/defroster flap)
  • The air distribution changes from footwell to defrost (to windshield)
  • Use wiring diagram to check wiring between Defroster Flap Motor V107 and operating and display module, Climatronic Control Module J255 for open circuit or interchange
  • Check Defroster Flap Motor V107 → Automatic Climate Control System, electrical testing .
NOTE:
  • Depending on the version of the operating and display module, Climatronic Control Module J255, the activation sequence is different for the Air Flow Flap Motor V71 and the Recirculation Flap Motor V113 On vehicles manufactured at the start of production, the Air Flow Flap Motor V71 is activated first; on vehicles as of VIN 400000 (Saloon and Avant; gradual introduction for the Cabrio in week 46/04 without prior specification of any particular VIN ) the Recirculation Flap Motor V113 is activated first.
Indicated on display Specified function Corrective action
Air Flow Flap Motor V71
  • The Air Flow Flap Motor V71 moves from stop to stop
  • Check freedom of movement of air flow/fresh air flaps
  • Open all instrument panel vents.
  • The Fresh Air Blower V2 runs at approx. 60 % of maximum speed
  • The recirculated-air flap is closed.
  • The air flow/fresh-air flaps open and close.
  • The flow of air from the vents changes.
NOTE:
  • This control motor is used to activate the air flow/fresh-air flaps.
Indicated on display Specified function Corrective action
Recirculation Flap Motor V113
  • The Recirculation Flap Motor V113 moves from stop to stop
  • Check freedom of movement of recirculated-air flap (and fresh-air flaps)
  • Open all instrument panel vents.
  • The Fresh Air Blower V2 runs at approx. 60 % of maximum speed
  • The fresh-air and air flow flap is closed.
  • The recirculated-air flap (and fresh-air flap) opens and closes.
  • The flow of air from the vents changes (left-hand drive vehicles).
  • The air is alternately drawn in the passengers footwell or via the dust and pollen filter (right-hand drive vehicles)
  • Use wiring diagram to check wiring between Recirculation Flap Motor V113 and operating and display module, Climatronic Control Module J255 for open circuit or interchange
  • Check Recirculation Flap Motor V113 → Automatic Climate Control System, electrical testing .
NOTE:
  • The Recirculation Flap Motor V113 only moves the recirculated-air flap. The air flow/fresh-air flaps are moved by the Air Flow Flap Motor V71.
Indicated on display Specified function Corrective action
Segment test
  • All display segments, the function indicator lamps in the buttons and the illumination of the operating and display module, Climatronic Control Module J255 are switched on and off at 2-second intervals.

The activation sequence for the components listed in the following is governed by the optional extras in the vehicle and the version of the operating and display module, Climatronic Control Module J255.

Indicated on display Specified function Corrective action
Heated Rear Window Z1
  • The Heated Rear Window is switched on once for 10 seconds
  • The Heated Rear Window Z1 becomes warm in the area of the heating coils.
  • Check activation and resistance values of Heated Rear Window Z1 → Heated Rear Window Z1, testing 
  • Check Rear Window Defogger Relay J9 (as of VIN 400000 in Model Year 2005 for Saloon and Avant; gradual introduction for the Cabrio in week 46/04 without prior specification of any particular VIN )
NOTE:
  • On vehicles up to VIN 399999 in Model Year 2005 (Saloon and Avant; gradual introduction for the Cabrio in week 46/04 without prior specification of any particular VIN ), the Heated Rear Window Z1 is activated directly by the operating and display module, Climatronic Control Module J255 (the relay for switching the current is installed in the operating and display module, Climatronic Control Module J255).
  • On vehicles as of VIN 400000 in Model Year 2005 (Saloon and Avant; gradual introduction for the Cabrio in week 46/04 without prior specification of any particular VIN ), the Heated Rear Window Z1 will no longer be activated directly by the operating and display module, Climatronic Control Module J255 (operating and display modules, Climatronic Control Module J255 with part No. index "AJ" onwards are no longer installed with a relay). On these vehicles, the Heated Rear Window Z1 is activated via the Rear Window Defogger Relay J9.
  • The activation function of the operating and display module, Climatronic Control Module J255 for the Heated Rear Window Z1 can be checked, for example on vehicles up to VIN 399999 in Model Year 2005 (Saloon and Avant; gradual introduction for the Cabrio in week 46/04 without prior specification of any particular VIN ) during Output Diagnostic Test Mode (DTM) diagnosis using the multimeter V.A.G 1715. Connect the current probe measuring leads 1 2 to the positive wire from the operating and display module, Climatronic Control Module J255 to the Heated Rear Window Z1 and select the "Current measurement via current probe measuring leads 1 2" function on the multimeter. The display changes from approx. 0 A to greater than 7 A.
  • If, after the control element Heated Rear Window Z1 on vehicles with no "Heated Windshield" as optional extra, this control element is displayed, check coding of operating and display module, Climatronic Control Module J255 → Climatronic Control Module J255, coding (function 07) .
Indicated on display Specified function Corrective action
END Info display
  • End of control element test, e.g. for vehicles with neither heated seats nor Heated Windshield as optional extras
  
Indicated on display Specified function Corrective action
Heated Windshield Z2
  • The Heated Windshield Control Module J505 is activated for approx. 10 seconds.
  • The Heated Windshield Control Module J505 switches on the Heated Windshield Z2 if the electrical system voltage is greater than 12.7 V.
  • Read measuring value block (display group "015") → Read Measuring Value Block (function 08) 
  • Use wiring diagram to check power supply and Ground (GND) connection to Heated Windshield Control Module J505.
  • Use wiring diagram to check wiring between operating and display module, Climatronic Control Module J255 and Heated Windshield Control Module J505.
  • Check activation and resistance values of Heated Windshield Z2 → Heated Rear Window Z1, testing 
NOTE:
  • If, on vehicles with no "Heated Windshield" as optional extra, this control element is activated, check coding of operating and display module, Climatronic Control Module J255 → Climatronic Control Module J255, coding (function 07) .
  • During Output Diagnostic Test Mode (DTM) diagnosis, the Heated Windshield Z2 is only activated by the operating and display module, Climatronic Control Module J255 up to a passenger compartment temperature of approx. 40 °C. If the temperature is higher, "Function unknown or cannot be implemented at present" appears on the Fault Readout Device display.
  • The activation function of the Heated Windshield Control Module J505 can be checked for example using the multimeter V.A.G 1715. Connect the current probe measuring leads 1 2 to the positive wire from the Heated Windshield Control Module J505 to the Heated Windshield Z2 and, on multimeter V.A.G 1715, select the "Current measurement via current probe measuring leads 1 2" function. The display changes from approx. 0 A to greater than 7 A.
  • Operation of the Heated Windshield Z2 is displayed in the measuring value block of the operating and display module, Climatronic Control Module J255 (display group "015") → Read Measuring Value Block (function 08)  and → Windshield defroster .
Indicated on display Specified function Corrective action
Drivers Seat Heating Element Z6
  • The driver seat cushion heater element is activated for approx. 10 seconds.
  • Use wiring diagram to check Ground (GND) connection to heater element in Drivers Seat Heating Element Z6.
  • Use wiring diagram to check wiring between operating and display module, Climatronic Control Module J255 and Drivers Seat Heating Element Z6.
NOTE:
  • The heated seat cushions are only activated in the case of an operating and display module, Climatronic Control Module J255 equipped with a heated seat cushion potentiometer (observe part No. and index) .
  • The activation function for the heated seat cushions can be checked for example using the multimeter V.A.G 1715. Connect the current probe measuring leads 1 2 to the positive wire to the seat cushion heater element and, on multimeter V.A.G 1715, select the "Current measurement via current probe measuring leads 1 2" function. The display changes from approx. 0 A to greater than 2 A.
Indicated on display Specified function Corrective action
Front Passengers Seat Heating Element Z8
  • The front passenger seat cushion heater element is activated for approx. 10 seconds.
  • Use wiring diagram to check Ground (GND) connection to heater element in Front Passengers Seat Heating Element Z8.
  • Use wiring diagram to check wiring between operating and display module, Climatronic Control Module J255 and Front Passengers Seat Heating Element Z8.
NOTE:
  • The heated seat cushions are only activated in the case of an operating and display module, Climatronic Control Module J255 equipped with a heated seat cushion potentiometer (observe part No. and index) .
  • The activation function for the heated seat cushions can be checked using the multimeter V.A.G 1715. Connect the current probe measuring leads 1 2 to the positive wire to the seat cushion heater element and, on multimeter V.A.G 1715, select the "Current measurement via current probe measuring leads 1 2" function. The display changes from approx. 0 A to greater than 2 A.
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