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Analysis: Display group 004, display field 4 - intake air temperature > < Analysis: Display group 004, display field 2 - supply voltage to the engine control unit

Octavia Mk1

Analysis: Display group 004, display field 3 - coolant temperature
   
Analysis: Display group 004, display field 3 - coolant temperature
Display -V.A.G 1552 -Possible cause of faultRectifying fault 
less than 80.0 °C
t  Engine too cold
t  Coolant temperature sender or cable connection to engine control unit faulty
–  Conduct road test if necessary.
–  Test resistances → Chapter 24-1.
 
greater than 115.0 °C
t  Radiator dirty
t  Radiator fan not operational
–  Clean radiator.
–  Perform actuator diagnosis → Chapter 01-1.
t  Thermostat for map-controlled engine cooling system faulty
–  Test thermostat for map-controlled engine cooling system → 1.6l/75 kW Engine, Mechanical Components; Rep. Gr.19.
t  Coolant temperature sender or cable connection to engine control unit faulty
–  Test resistances → Chapter 24-1.
–  Test wiring and plug connections according to current flow diagram.
constant 30.0 or 49.5 °C
t  Line interruption or short-circuit
–  Test wiring and plug connections to coolant temperature sender -G62- according to current flow diagram.

   

Analysis: Display group 004, display field 4 - intake air temperature > < Analysis: Display group 004, display field 2 - supply voltage to the engine control unit