When replacing the skid control ECU perform zero point calibration See Precheck

NG: Go to next step.

2. Check for open or short circuit in harness and connector between delta S sensor (pedal stroke speed sensor) and skid control ECU (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).

NG: Repair or replace harness or connector.

OK: Go to next step.

3. Inspect the delta S sensor (pedal stroke speed sensor) terminal voltage (VCP terminal) PREPARATION:

Disconnect the delta S sensor (pedal stroke speed sensor) connector.

2004 BRAKES ABS With EBD & BA & TRAC & VSC System - Diagnostics - Sequoia

CHECK:

a. Turn the ignition switch to the ON position.

b. Measure the voltage between VCP terminal and body ground.

Voltage: 5 V

Fig. 65: Identifying Deltas Sensor & Connector Terminal For Measuring Voltage Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: Replace skid control ECU (See DISASSEMBLY ).

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