996 Carrera Group 0 Part 1 Diagnosis / PAGE 136
Pin Designation Pin Designation · 13 Rear left speed sensor (signal wire) 37
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911 Carrera 4 (996) PSM diagnosis
Pin Designation Pin Designation
13 Rear left speed sensor (signal wire) 37 Activation of valve relay (ground)
14 Rear left speed sensor (ground) 38 Battery charge terminal 61,
instrumentcluster
15 Front right speed sensor
(signal wire) 42 Stop light switch (open)
16 Front right speed sensor (ground) 44 PSM off (from PSM button)
18 Transverseaccelerationsensor 46 Diagnosiscommunicationwire
(signalwire)
48 Stop light switch (close)
19 Transverse accelerationsensor
(ground) 49 Switch-overvalve 1;
PSM hydraulic unit (ground)
20 Motormonitoring,return
pump relay (voltage) 50 Switch-overvalve 2;
PSM hydraulic unit (ground)
22 Booster pump (voltage)
51 Power supply terminal 30
24 Booster pump (ground)
52 Booster valve 2
25 Activation of rear left outlet valve PSM hydraulic unit (ground)
(PSMhydraulicunit) (ground)
53 Activation of rear left inlet valve
26 Activation of front right inlet valve PSM hydraulic unit (ground)
PSM hydraulic unit (ground)
54 Booster valve 1
28 GroundGP 2 PSM hydraulic unit (ground)
29 GroundGP 2 55 Activation of front right
outlet valve; PSM hydraulic unit
31 PSM/ASR/ABDsignallight, (ground)
instrumentcluster
61 CAN bus (high)
32 ABS signal light, instrumentcluster
62 CANshield
34 Rate-of-turnsensor (voltage)
63 CAN bus (low)
4503 Diagnosis/troubleshooting PSM 45 -D 73
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