All values measured to ground unless otherwise noted
Conn./Plug/Pin	Pin Information	Test Value	Comments
N3/4
1.1-4	Pins not used
1.5	Recognition Lever Position 2/3	Ignition Off: Lever Position D: >20kOHM Lever Position 2/3: < 1Ohm Measure across Pin 23
1.6	Recognition Lever Position 2/3	Ignition Off: Lever Position D: >20kOHM Lever Position 2/3: < 1Ohm Measure across Pin 23
1.7	Pin not used
1.8	Rear axle VSS input, processed in traction system ECM	Ignition on, lift front of vehicle. Turn right front wheel > 1 rev/sec by hand > 3 VAC or with vehicle moving	20 mph / 200 Hz 35 mph / 330 Hz square wave
1.9-10	Pins not used
1.11	RPM increase signal input. Idle speed increases with A/C compressor on.	Engine running. 12 VDC with A/C compressor on (defrost mode), 0 VDC with A/C compressor off (defrost "off").
1.12-14	Pins not used
1.18	Rpm signal output, controls (EA/)CC/ISC system and tachometer A1p5	Engine at idle 5.0 - 7.5 VDC
1.19	"Diagnostic port" for DTC readout and diagnostic purpose	Ignition on 12 VDC	To be tested with HHT refer to D.M.
1.20	Circuit 50 starter signal recognition input	Key held in starting position 12 VDC
1.21	Circuit 50 starter signal recognition input	Gear range selector in pos P or N key held in starting position 12 VDC
1.22	Main ground to W16/4	Approx. 0 Ohms to ground
1.23	Recognition Lever Position 2/3	see Pin 5 or 6
1.27	Circuit 87 switched power input, switched by relay K1	Ignition on 12 VDC
1.28	Pin not used
1.29	Fuel pump activation signal output, activates relay K27	6-12 VDC during start procedure
1.32	Main ground to W16/4	Approx. 0 Ohms to ground
1.33	Pin not used
1.37-38	Pins not used
1.39	Circuit 87 switched power input, switched by relay K1	Ignition on 12 VDC
1.40	Circuit 30 main power input	12 VDC at all times
1.43	Purge control signal output switched ground activates purge valve	Ignition on, approx. 0.2-0.3 A current draw Engine at idle for at least 1 min. Valve must recognizably cycle