996 Carrera Group 0 Part 2 Diagnosis / PAGE 379
Test point 5 · ABS speed
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911 Carrera (996) HBA diagnosis
Test point 5
ABS speed
Engineoff
Vehicle raised
Ignition on
Slowly rotate the rear left wheel by hand
PST2 display greater than 1 km/h
If 0 km/h is displayedwhen the wheel is rotated:
1. Checkfuse 89
2. Switch ignition off and pull off plug on the control module
Switch ignition on
Rotate the rear left wheel by hand and measure the voltage
(AC range) betweenterminal 11 and ground
Voltmeter display greater than 1 V
If the wheel speed signal is present at the control module, replace the
control module. If the wheel speed signal is not present at the control
module,check the wire for open circuit or short to ground and check
the ABS or PSM control module.
94 92 Diagnosis/troubleshooting HBA 94 -D 23
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