996 Carrera Group 0 Part 2 Diagnosis / PAGE 160
Fault, Fault code Possible causes, elimination, notes · 3. Connectvoltmeter to C 14 (positive)and ground.
Read extracted page text
OCR can contain errors. Check the original page image for exact wording, warnings and specifications.
911 Carrera (996) Heating diagnosis
Fault, Fault code Possible causes, elimination, notes
3. Connectvoltmeter to C 14 (positive)and ground.
Switch on ignition.
Display: Battery voltage
4. PushconnectorC on the heating/air-conditioningcontrol.
5. Connectvoltmeter to C 14 (positive)and C 11 (negative).
Maximumblower speed
Display: approx. 12 V
Minimumblower speed
Display: approx. 0 V
6. Connectvoltmeter to C 14 (positive)and C 16 (negative).
Maximumblower speed
Display: approx. 5 V
Minimumblower speed
Display: approx. 9 V
7. Check driver.
Connectvoltmeter to positive and pin 3 on driver connector.
Display: Battery voltage
Connectvoltmeter to positive and pin 1 on driver connector.
Maximumblower speed
Display: approx. 5 V
Minimumblower speed
Display: approx. 9 V
Connectvoltmeter to positive and pin 2 on the driver connector.
Maximumblower speed
Display: approx. 12 V
Minimumblowerspeed
Display: approx.a v
8. Check wiring from heating/air-conditioningcontrol to driver
for continuity.
9. Checkblowermotor.
80 01 Diagnosis/troubleshooting, heating 80-D29
Printed in Germany -11, 1998 99680Dl
This is a source reference. Confirm exact model applicability in the original material.