996 Carrera Group 0 Part 2 Diagnosis / PAGE 153
Heating diagnosis 911 Carrera (996) · Fault, Fault code Possible causes, elimination, notes
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Heating diagnosis 911 Carrera (996)
Fault, Fault code Possible causes, elimination, notes
4. Checkpotentiometerin the drivemotors.
Temperaturemixing valve:
Connectohmmeter to pins 1 and 3.
Display: 4 -5 k.o.at 23 °C
Footwell/ defrost valve:
Connectohmmeter to pins 1 and 3.
Display: 4 -5 k.Q at 23 °C
Central valve:
Connectohmmeter to pins 1 and 3.
Display: 4 -5 k.o.at 23 °C
Outside air / recirculationvalve:
Connectohmmeter to pins 4 and 5.
Display: 4 -5 kn at 23 °C
Test point 7
Motor of temperature Diagnosis conditions
mixing valve No control module fault stored.
No fault with supply voltage (5 volts).
Signal implausible
Fault code 26 Signal implausible
1. Checktemperaturemixingvalvefor smoothoperation.
2. UnplugconnectorsA, B, C and D from the heatingjair-conditioning
control.
3. Unplugconnectorfrom the temperaturemixingvalvedrivemotor.
4. Connectohmmeter to connector C 8 and drive motor
connector pin 1.
Display: < 5 .0.
Connectohmmeter to connector B 8 and drive motor
connector pin 2.
Display: < 5 .Q
80 -D 22 80 01 Diagnosis/troubleshooting, heating
9968001 Printed in Germany -11, 1998
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