All values measured to ground unless otherwise noted
Conn./Plug/Pin Pin Information Test Value Comments
N30/2     Note 1
1 Rear axle VSS output, generated by L6
controls automatic locking differential function depending on vehicle speed
Ignition on, lift rear of vehicle.
Turn any rear wheel > 1 rev/sec by hand > 3 VAC or with vehicle moving
Note 2
2 ASD warning indicaton signal output Ignition on < 1VDC, indicator lamp on
engine at idle 12 VDC, indicator lamp off
 
3 RF VSS signal input Ignition on, lift front of vehicle.
Turn right front wheel > 1 rev/sec by hand > 3 VAC or with vehicle moving
Note 2
4 ASD MIL signal output Ignition on < 1VDC, indicator lamp on
engine at idle 12 VDC, indicator lamp off
 
5 LF VSS signal input Ignition on, lift front of vehicle.
Turn left front wheel > 1 rev/sec by hand > 3 VAC or with vehicle moving
Note 2
6 "Diagnostic port" for DTC readout and diagnostic purpose Ignition on 12 VDC To be tested with
HHT refer to D.M.
7 pin not used    
8 Main ground to W16/4 Approx. 0 Ohms to ground or
measure to circuit 30 12 VDC
 
9 pin not used    
10 ASD valve activation signal output Measure to pin 27
Ignition on < 1VDC, indicator lamp on
engine at idle 12 VDC, indicator lamp off
Y38 coil resistance
5-7 Ohms
11 Stop lamp switch (normally open) input.
deactivates ASD operation
12 VDC with brakes applied, 0 VDC with brakes not applied.  
13 Circuit 61 (engine running) signal input
processed in IC from circuit D+
Ignition on < 2 VDC
engine at idle 12 VDC
D+ signal from generator G2
14 Circuit 87 ABS, fused power input from BM Ignition on 12 VDC Feed from N/16f1
Note 1 To calibrate new ECM drive vehicle > 30 Km/h Depressing brake pedal will interrupt
calibration procedure
 
Note 2 All VSS used to control automatic locking differential function depending on vehicle speed