Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Tundra and 2005 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: When replacing the master cylinder solenoid, perform zero point CALIBRATION .

Check for open or short circuit in harness and connector between each speed sensor and master cylinder solenoid (skid control ECU).
1. NG: Repair or replace harness or connector.
2. OK: Go to next step.

Measure the voltage of the speed sensor.

PREPARATION:

Disconnect speed sensor connectors A6, A7 and A19.

CHECK:

Turn the ignition switch to the ON position.
Measure the voltage according to the value(s) in the table below.

Fig 1: Identifying Speed Sensor Connectors A6, A7 And A19 Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

SPEED SENSOR CONNECTOR TERMINALS VOLTAGE SPECIFICATIONS

Tester Connection	Condition	Specified Condition
A6-2 (FL) - Body ground	Ignition switch ON	7.5 to 12V
A7-2 (FR) - Body ground	Ignition switch ON	7.5 to 12V
A19-2 (RL) - Body ground	Ignition switch ON	7.5 to 12V
A19-4 (RR) - Body ground	Ignition switch ON	7.5 to 12V

HINT:

If foreign matter is identified (also on the sensor rotor side), remove it. After reassembling, check the output waveform.

NG: Replace master cylinder solenoid (See DISASSEMBLY ).
OK: Go to next step.

Reconfirm DTC (See DTC CHECK / CLEAR ).
PREPARATION:
1. Clear the DTCs.
2. Drive the vehicle at more than 13 mph (20 km/h).
CHECK:

Check if the same DTCs are detected.

RESULT:
DTC OUTPUT RESULT

DTC is output A

DTC is not output B
1. B: END.
2. A: Go to next step.
Check sensor tip.
Front:

PREPARATION:

Remove the front speed sensor (see REMOVAL ).

CHECK:

Check the sensor tip.

OK:

No scratches or foreign matter on the sensor tip.

HINT:

If foreign matter is identified (also on the sensor rotor side), remove it. After reassembling, check the output waveform.

Rear:

PREPARATION:

Remove the rear speed sensor (see REMOVAL ).

CHECK:

Check the sensor tip.

OK:

No scratches or foreign matter on the sensor tip.
1. NG: Clean or replace speed sensor.
  NOTE: Check the speed sensor signal after replacement (see TEST MODE PROCEDURE ).
2. OK: Clean or replace sensor rotor.

DTC is output	A
DTC is not output	B