Speed Sensor Signal Check

(a) Check the speed sensor signal.

(1) Turn the ignition switch OFF.

(2) Using SST, connect terminals Ts and E1 of the DLC1.

SST 09843-18020

(3) Start the engine.

DLC1

Ei

fu^

a

n

Bn

8

---

R13006

0.13 sec.

0.13 sec.

ON - -

OFF---

BR3904

(4) Check that the ABS warning light blinks.

HINT:

If the ABS warning light does not blink, inspect the ABS warning light circuit (See page DI-138 ).

(5) Drive the vehicle faster than 45 km/h (28 mph) for several seconds.

(6) Stop the vehicle.

(7) Using SST, connect terminals Tc and E1 of the DLC1.

SST 09843-18020

(8) Read the number of blinks of the ABS warning light.

HINT:

See the list of DTCs shown on the next page.

• If every sensor is normal, a normal code is output (A cycle of 0.25 sec. ON and 0.25 sec. OFF is repeated).

• If 2 or more malfunctions are indicated at the same time, the lowest numbered code will be displayed 1st.

Malfunction Code (Example Code 72, 76) 2 7

Malfunction Code (Example Code 72, 76) 2 7

0.5 sec.

Repeat

Repeat

BR3893

(9) After doing the check, disconnect terminals Ts and E1, and Tc and E1 of the DLC1, and turn ignition switch OFF.

(b) Check the DTC of speed sensor function.

Code No.

Diagnosis

Trouble Area

71

Low output voltage of right front speed sensor

•Right front speed sensor (Sensor installation

72

Low output voltage of left front speed sensor

•Left front speed sensor •Sensor installation

73

Low output voltage of right rear speed sensor

•Right rear speed sensor (Sensor installation

74

Low output voltage of left rear speed sensor

•Left rear speed sensor •Sensor installation

75

Abnormal change in output voltage of right front speed sensor

•Right front speed sensor rotor

76

Abnormal change in output voltage of left front speed sensor

•Left front speed sensor rotor

77

Abnormal change in output voltage of right rear speed sensor

•Right rear speed sensor rotor

78

Abnormal change in output voltage of left rear speed sensor

•Left rear speed sensor rotor

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