| All values measured to ground unless otherwise noted | |||
| N30 | Up to MY 95 | ||
| 8 | Rear axle VSS output, generated by L6, processed in ECM and sent to other ECMs | Ignition on, lift rear of vehicle. Turn any rear wheel > 1 rev/sec by hand > 3 VAC or with vehicle moving |
20 mph / 200 Hz 35 mph / 330 Hz square wave |
| 7 9 |
Rear axle VSS sensor, + input. Rear axle VSS sensor, - input. |
ECM disconnected 0.6-3.2 kOhms across pins 7 and 9 Sine wave. Frequency varies with wheel speed. |
Note 1 |
| N47-7 | As of MY 95 | ||
| 1.3 | Rear axle VSS signal input, controls Traction systems function depending on vehicle speed | same as N30 Pin8 | Feed from traction system via X62/13 |
| 12 13 |
Rear axle VSS sensor, + input. Rear axle VSS sensor, - input. |
ECM disconnected 0.6-3.2 kOhms across pins 12 and 13 Sine wave. Frequency varies with wheel speed. |
Note 1 |
| N3/4 | |||
| 1.8 | Rear axle VSS signal input, controls HFM-SFI system function depending on vehicle speed | same as N30 Pin8 | Feed from traction system via X62/13 |
| N4/3 | |||
| 9 | Rear axle VSS signal input, controls CC/ISC system function depending on vehicle speed | same as N30 Pin8 | Feed from traction system via X62/13 |
| N30/2 | |||
| 1 | Rear axle VSS signal input, controls ASD function depending on vehicle speed | same as N30 Pin8 | Feed from traction system via X62/13 |
| Note 1 | To test, spin wheel at 1 rev/sec, measure at least 120 mVAC between both wires of sensor. If voltage is OK, measure the sensor's resistance while pulling, twisting and bending the sensor wires, looking for intermittent opens. Finally, check the sensor tip and rotor teeth for dirt or breakage. An oscilloscope can also be used to check the waveform - chipped or dirty teeth show up as missing or malformed waves. | ||