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

NG: Go to next step. 3. Check master cylinder pressure sensor No. 1.

PREPARATION:

Disconnect the connector from the master cylinder pressure sensor No. 1. CHECK:

a. Turn the ignition switch ON.

b. Measure voltage between terminal VCM and E1 of skid control ECU.

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

G02921831

Fig. 84: Identifying Connector Terminal VCM & E1 For Measuring Voltage Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

OK: Replace master cylinder pressure sensor No. 1.

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