All values measured to ground unless otherwise noted
Conn./Plug/Pin Pin Information Test Value Comments
A37      
1.5 Trunk lid switch ground signal input Measure to pin 2.4 (circuit 30):
< 1 VDC with trunk lid closed
12 VDC with trunk lid open
 
1.8 CAN Class B bus (high side). Mid speed data transfer bus input and output, exchanges data with other ECMs No reliable test. Check continuity of wiring. Approx. 5 VAC when data is on bus HHT is also used for
CAN diagnosis
1.9 CAN Class B bus (low side) See pin 1.8  
1.11 Trunk lid lock switch unlock signal input Measure to pin 2.4 (circuit 30), S88/2 in:
Unlock position 12 VDC
rest position < 1VDC
 
1.12 Trunk lid lock switch lock signal input Measure to pin 2.4 (circuit 30), S88/2 in:
Lock position 12 VDC
rest position < 1VDC
 
1.13 Trunk lamp switch (sedan) or tailgate closing assist (wagon) ground signal input Measure to pin 2.2 (circuit 30):
< 1 VDC with trunk lid/tailgate closed
12 VDC with trunk lid/tailgate open
 
1.14 Left front door contact switch ground signal input Ignition off approx. 0 Ohms when door is open  
1.16 Right front door contact switch ground signal input Ignition off approx. 0 Ohms when door is open  
1.17 Left rear door contact switch ground signal input Ignition off approx. 0 Ohms when door is open  
1.18 Right rear door contact switch ground signal input Ignition off approx. 0 Ohms when door is open  
2.2 Circuit 30 main power input 12 VDC at all times Feed from F4f4
2.3 Main ground to W7 Approx. 0 Ohms to ground  
2.4 Circuit 30 fused power input 12 VDC at all times Feed from F4f2
N10/1      
1.6 Interior CL switch signal input Interior CL switch in:
Rest position > 20 kOhms
lock pos. approx. 200 Ohms
unlock pos. < 1 Ohm
 
2.6 CAN Class B bus (high side). Mid speed data transfer bus input and output, exchanges data with EIS ECM No reliable test. Check continuity to all appropriate ECMs. Approx. 5 VAC when data is on bus HHT is also used for
CAN diagnosis
2.7 CAN Class B bus (low side) See pin 2.6  
4.1 CAN Class B bus (low side). Mid speed data transfer bus input and output, exchanges data with other ECMs No reliable test. Check continuity to all appropriate ECMs. Approx. 5 VAC when data is on bus HHT is also used for
CAN diagnosis
4.2 CAN Class B bus (high side) See pin 4.1  
4.7 Right rear turn signal lamp voltage output Ignition on, 12 VDC intermittent with right turn signal on E4e1 flashing
Note 2
4.8 Left rear turn signal lamp voltage output Ignition on, 12 VDC intermittent with left turn signal on E3e1 flashing
Note 2
5.1 Right front turn signal/side marker lamp voltage output Ignition on, 12 VDC intermittent with right turn signal on E6/2 flashing
Note 2
5.3 Left front turn signal/side marker lamp voltage output Ignition on, 12 VDC intermittent with left turn signal on E6/1 flashing
Note 2
N69/1      
1.1 Circuit 30 main power input 12 VDC at all times Feed from F1f8
1.3 Main ground to W18 Approx. 0 Ohms to ground  
2.1 Left front door lock switch ground output Approx. 0 Ohms to ground  
2.2 Left front door lock switch unlock signal input Measure to pin 1.1 (circuit 30), S86/1 in:
Unlock position 12 VDC
rest position < 1VDC
 
2.3 Left front door lock switch lock signal input Measure to pin 1.1 (circuit 30), S86/1 in:
Lock position 12 VDC
rest position < 1VDC
 
3.2 Left front IR receiver unit signal input No reliable test. Check continuity of wiring  
3.4 Left front IR receiver unit ground output Approx. 0 Ohms to ground  
3.9 CAN Class B bus (low side). Mid speed data transfer bus input and output, exchanges data between various ECMs No reliable test. Check continuity to all appropriate ECMs. Approx. 5 VAC when data is on bus HHT is also used for
CAN diagnosis
3.14 Left front IR receiver unit power supply 4.5-5.5 VDC  
3.18 CAN Class B bus (high side) See pin S3.9  
N69/2      
1.1 Circuit 30 main power input 12 VDC at all times Feed from F4f3
1.3 Main ground to W19 Approx. 0 Ohms to ground  
2.1 Right front door lock switch ground output Approx. 0 Ohms to ground  
2.2 Right front door lock switch unlock signal input Measure to pin 1.1 (circuit 30), S87/1 in:
Unlock position 12 VDC
rest position < 1VDC
 
2.3 Right front door lock switch lock signal input Measure to pin 1.1 (circuit 30), S87/1 in:
Lock position 12 VDC
rest position < 1VDC
 
3.2 Right front IR receiver unit signal input No reliable test. Check continuity of wiring  
3.4 Right front IR receiver unit ground output Approx. 0 Ohms to ground  
3.9 CAN Class B bus (low side). Mid speed data transfer bus input and output, exchanges data between various ECMs No reliable test. Check continuity to all appropriate ECMs. Approx. 5 VAC when data is on bus HHT is also used for
CAN diagnosis
3.14 Right front IR receiver unit power supply 4.5-5.5 VDC  
3.18 CAN Class B bus (high side) See pin 3.9  
N70      
A.1 Main ground to W19 Approx. 0 Ohms to ground  
A.2 Circuit 30 main power input 12 VDC at all times Feed from F1f9
A.3 CAN Class B bus (low side). Mid speed data transfer bus input and output, exchanges data between various ECMs No reliable test. Check continuity to all appropriate ECMs. Approx. 5 VAC when data is on bus HHT is also used for
CAN diagnosis
A.6 CAN Class B bus (high side) See pin A.3  
A.7 Radio remote control RF signal input and output No reliable test. Functional test with Radio RC  
Note 1 Due to various functions A37, N10/1, N69/1,2 and N70 are split up in several system diagrams, therefore only the relating pins are listed. Pins not shown are unrelated to this system    
Note 2 Turn signal/hazard warning flasher frequencies:
1.5 Hz (90/min) with all turn lights ok.
3.0 Hz (180/min) one or more turn lights defective.