996 Carrera Group 0 Part 2 Diagnosis / PAGE 162
Fault, Fault code Possible causes, elimination, notes · 3. Connectvoltmeter on sleeve side to pin 2 (negative)
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911 Carrera (996) Heating diagnosis
Fault, Fault code Possible causes, elimination, notes
3. Connectvoltmeter on sleeve side to pin 2 (negative)
and pin 3 (positive).
Switch on ignition.
Display: approx. 4.5 -5 volts
If 0 volts is displayed,check wiring to the heating/air-conditioning
control A 12 and B 18 for continuity.
Check wiring to the heating/air-conditioningcontrol B 18
for short to ground.
Note
The wiring to the heatingiair-conditioningunit is routed via two
plug connections.
If the wiring is OK, replace the heatingiair-conditioningcontrol.
4. Connectohmmeterto sunsensorpins 2 and 3.
Sunsensornot in darkness
Display: approx. 1.3 M.o.
Sunsensorin darkness
Display: approx. 240 k.Q
80 01 Diagnosis/troubleshooting, heating 80 -D 31
Printed in Germany -11, 1998 99680Dl
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