Checking Program - Anti - lock Brake System Monterey
| Test | Test Equipment | Test | Notes | Nominal | |
|---|---|---|---|---|---|
| Step | Multimeter | ||||
| MKM-587-A | of | ||||
| between | |||||
| Value: |
04
Ohmmeter range 2 KW
Wheel speed sensor, front right P18
Pinout box, ter. 23 (11)
Pinout box, ter. 21
· Ignition "OFF"
· Ensure that measured value remains constant
· Measurement at pinout box
0. 8K ~ 1.3 KW
| Ohmmeter range 20 MW |
Pinout box, ter. 23 (11)
Pinout box, ter. 10
· Measurement at pinout box
> 20 MW
| Voltmeter range 200 mV, AC |
|---|
| Pinout box, ter. 23 (11) |
Pinout box, ter. 21
· With vehicle jacked up, slowly turn front right wheel by hand with one rotation per second
· Measurement at pinout box
> 200 mV
| Troubleshooting | Nominal Value | Cause of Fault |
· Disconnect wiring harness plug XC41 from wheel speed sensor, front right P18
· Measure resistance with multimeter
from: Pinout box, ter. 21
to: Wheel speed sensor, front right P18, wiring harness plug XC41 ter. 1
| approx. 0 W |
|---|
| · Line interrupted or short circuit to voltage |
from: ABS control unit K50, wiring harness plug XC4 ter. 21
to: Wiring harness plug XC41 ter. 1
· Measure resistance with multimeter
from: Pinout box, ter. 23 (11)
to: Wheel speed sensor, front right P18, wiring harness plug XC41 ter. 2
approx. 0 W
· Line interrupted or short circuit to voltage
from: ABS control unit K50, wiring harness plug XC4 ter. 23 (11)
to: Wiring harness plug XC41 ter. 2
· Measure resistance with multimeter
from: Pinout box, ter. 21
to: Pinout box, ter. 10
> 20 MW
· Short circuit to ground
from: ABS control unit K50, wiring harness plug XC4 ter. 21
to: Wiring harness plug XC41 ter. 1
| Terminal assignments in brackets "( )" are for MY'92 / '93 only |
· Measure resistance with multimeter
from: Pinout box, ter. 23 (11)
to: Pinout box, ter. 10
> 20 MW
· Short circuit to ground
from: ABS control unit K50, wiring harness plug XC4 ter. 23 (11)
to: Wheel speed sensor, front right P18, wiring harness plug XC41 ter. 2
· Measure resistance with multimeter
from: Pinout box, ter. 21
to: Pinout box, ter. 23 (11)
> 20 MW
· Short circuit between leads to wheel speed sensor, front right P18
If nominal value are attained:
· Wheel speed sensor, front right P18 defective
or
· Wheel speed sensor, front right P18 loose
or
· Wheel bearing play too great
or
· Ring gear (pulse pick - up) damaged Nominal value: 54 teeth