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 AUTO LSD switch.

PREPARATION:

Disconnect the skid control ECU connector S29.

CHECK:

Measure the voltage according to the value(s) in the table below.

Fig 1: Identifying CSW Terminal Of Skid Control ECU Connector S29

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

SKID CONTROL ECU CONNECTOR S29 VOLTAGE SPECIFICATIONS

Tester Connection	Switch Condition	Specified Condition
S29-43 (CSW) - Body ground	AUTO LSD Switch ON	Below 1 V
S29-43 (CSW) - Body ground	AUTO LSD Switch OFF	8 to 14 V

HINT:

The signal is applied to terminal CSW only when the AUTO LSD switch is pressed.

NG : Repair or replace AUTO LSD switch circuit.
OK : Go to next step.

Check for open or short circuit in harness and connector between AUTO LSD switch and master cylinder solenoid (skid control ECU).
1. NG : Repair or replace harness or connector.
2. OK : Go to next step.
Check for open or short circuit in harness and connector between AUTO LSD switch and body ground.
1. NG : Repair or replace harness or connector.
2. OK : Replace master cylinder solenoid (See DISASSEMBLY ).