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
 
1.7 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 Transmission overload protection signal input, to reduce power in case of AT overload Engine at idle approx. 5 VDC  
1.10 Pin 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    
1.15 02S 1 signal output to diagnostic module Engine at idle for at least 2 min. ECT > 80 °C
Voltage varies more than 0.3 VDC in a range from - 0.2 to + 1.0 VDC
generated by G3/2
1.16 02S 2 signal output to diagnostic module Engine at idle ECT > 80 °C
measure to pin 24 >450 mVDC
Raise to 2000-3000 rpm for at least 3 min until
02S heater switches to on, then accelerate briefly voltage changes >100mVDC
generated by G3/1
1.17 CMP sensor signal output to diagnostic module Engine at idle 1.3 - 1.7 VDC (value alternates) generated by B6/1
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 Magnetic clutch solenoid activation signal intput Ignition on, 7.0 - 10 VDC  
1.23 Recognition Lever Position 2/3 see Pin 5 or 6  
1.24
1.25
02S signal input, low side
02S signal input, high side
Engine at 2000-3000 rpm for at least 2 min.
ECT >80 °C >550 mVDC across pin 24 and 25
 
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  
1.30 O2S heater activation signal (before TWC) Ignition on approx. 0.6-3.4 A current draw to circuit 87 pin 39
Engine at idle for at least 2 min. ECT > 80 °C
12 VDC
 
1.31 02S heater activation (after TWC) to heater relay K35 Ignition on approx. 0.1-0.3 A current draw.
ECT<25 °C measure to circuit 87 pin 27 12 VDC
 
1.32 Main ground to W16/6 Approx. 0 Ohms to ground  
1.33 Main ground to W16/4 Approx. 0 Ohms to ground  
1.34
1.35
02S signal input, low side
02S signal input, high side
Engine at idle for at least 2 min. ECT > 80 °C,
measure across pin 34 and 35 voltage varies
> 0.3 VDC in a range from -0.2 to 1.0 VDC
 
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  
1.41 O2S heater activation signal (after TWC) Same as 1.30  
1.42 Upshift delay signal output activated to shorten warm-up time of TWC Ignition on measure to circuit 87
approx. 0.4-0.6 A current draw
 
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
 
1.44 Ground signal to diagnostic module