996 Carrera Group 0 Part 2 Diagnosis / PAGE 261
Test point 4 · Supplyvoltage
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Test point 4
Supplyvoltage
Ignition on
Engineoff
All loads switched off
PST2 display > 11 V
Examinebattery and generator
Test point 5
Brightnesssensor
Engine off
Shinethe pocket lamp on the sensor
PST2display:
Tester display increasesto a value of approx. 97% -100%
Displaysdarken (dimming takes place slowly).
Brightening of the sensor
PST2display:
Tester display drops to a value of 0 -5%
Displaysbrighten (dimming takes place slowly),
If there is no change in the dimming, the instrumentcluster is faulty,
8
90 -D 94.
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