| All values measured to ground unless otherwise noted | |||
| N30 | ABS up to MY 95 | ||
| 5 | LF VSS output, generated by L6/1, processed in ECM and sent to other ECMs | Ignition on, lift front of vehicle. Turn left front wheel > 1 rev/sec by hand > 3 VAC or with vehicle moving |
20 mph / 200 Hz 35 mph / 330 Hz square wave Feed to X62/12 |
| 6 4 |
LF VSS sensor, + input. LF VSS sensor, - input. |
ECM disconnected 0.8-3.7 kOhms across pins 6 and 4 Sine wave. Frequency varies with wheel speed. |
Note 1 |
| N30/1 | ASR up to MY 94 | ||
| 18 | LF VSS output, generated by L6/1, processed in ECM and sent to other ECMs | Ignition on, lift front of vehicle. Turn left front wheel > 1 rev/sec by hand > 3 VAC or with vehicle moving |
20 mph / 200 Hz 35 mph / 330 Hz square wave Feed to X62/12 |
| 48 49 |
LF VSS sensor, - input. LF VSS sensor, + input. |
ECM disconnected 0.8-3.7 kOhms across pins 49 and 48 Sine wave. Frequency varies with wheel speed. |
Note 1 |
| N47-1, N47-2, |
ETS/ASR as of MY 95 | ||
| 1.26 | LF VSS output, generated by L6/1, processed in ECM and sent to other ECMs | Ignition on, lift front of vehicle. Turn left front wheel > 1 rev/sec by hand > 3 VAC or with vehicle moving |
20 mph / 200 Hz 35 mph / 330 Hz square wave |
| 2.14 2.1 |
LF VSS sensor, - input. LF VSS sensor, + input. |
ECM disconnected 0.8-2.3 kOhms across pins 2.14 and 2.1 Sine wave. Frequency varies with wheel speed. |
Note 1 |
| N47-1, N47-2, N47-7 |
ABS/ETS/ASR as of MY 96 | ||
| 1.1 | LF VSS output, generated by L6/1, processed in ECM and sent to other ECMs | Ignition on, lift front of vehicle. Turn left front wheel > 1 rev/sec by hand > 3 VAC or with vehicle moving |
20 mph / 200 Hz 35 mph / 330 Hz square wave |
| 2.44 2.43 |
LF VSS sensor, - input. LF VSS sensor, + input. |
ECM disconnected 0.8-2.3 kOhms across pins 2.43 and 2.44 Sine wave. Frequency varies with wheel speed. |
Note 1 |
| N4/1 | |||
| 1.15 | LF VSS signal input, controls CC/ISC or EA/CC/ISC system function depending on vehicle speed | same as N30 5 or N30/1 18 | Feed from traction system via X62/12 |
| N4/3 | |||
| 5 | LF VSS signal input, controls CC/ISC system function depending on vehicle speed | same as N30 5 or N30/1 18 | Feed from traction system via X62/12 |
| N15 | |||
| 8 | LF VSS signal input, controls kickdown function depending on vehicle speed | same as N30 5 or N30/1 18 | Feed from traction system via X62/12 |
| N30/2 | |||
| 5 | LF VSS signal input, controls automatic locking differential function depending on vehicle speed | same as N30 5 or N30/1 18 | Feed from traction system via X62/12 |
| A1 | |||
| 2D.2 | LF VSS signal input, controls speedometer function | same as N30 5 or N30/1 18 | Feed from traction system via X62/12 |
| A2 | |||
| A.1 | VSS signal input, controls loudness depending on vehicle speed | same as N30 5 or N30/1 18 | Note 2 Feed from traction system via X62/12 |
| A35/3 | |||
| 2.2 | VSS signal input, controls loudness depending on vehicle speed | same as N30 5 or N30/1 18 | Note 2 Feed from traction system via X62/12 |
| 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. | ||
| Note 2 | Substitution test use signal generator set to approx. 3Vpp Loudness will increase when frequency is raised from 0 to 300 Hertz |
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