Ng Check For Shorts In All Harnesses And Connectors Connected To Fuse And Replace Fuse

2007 BRAKES Brake Control - Sequoia

OK: GO TO Next Step

2. CHECK BATTERY VOLTAGE OK:

Voltage: 10 to 14 V

NG: CHECK CHARGING SYSTEM

OK: GO TO Next Step

3. CHECK SKID CONTROL ECU TERMINAL VOLTAGE (+BM, +BS)

a. Disconnect the skid control ECU connector.

b. Measure the voltage between terminal +BM/+BS and GND of the skid control ECU harness side connector.

Voltage: 10 to 14 V OK: REPLACE SKID CONTROL ECU

Fig. 59: Checking Skid Control ECU Terminal Voltage (+BM, +BS) NG: GO TO Next Step

4. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - BODY GROUND)

a. Disconnect the skid control ECU connector.

b. Measure the resistance between terminal GND of the skid control ECU harness side connector and body ground.

Resistance: 1 ohms or less

2007 BRAKES Brake Control - Sequoia

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

¿1

—1

yGND

T prnl . ! ÎJ

Fig. 60: Measuring Resistance Between Terminal GND Of Skid Control ECU Connector And Body Ground

OK: CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - BATTERY) DTC C1247/47 STROKE SENSOR MALFUNCTION DESCRIPTION

Detects a problem with booster negative pressure and enters assist control.

DTC TRO

UBLE DETECTION CONDITION

DTC No.

DTC Detecting Condition

Trouble Area

C1247/47

When any of the following conditions are detected:

1. When the output becomes 4.7 V or more or 0.2 V or less per 100 msec.

2. When the output does not return to 2.5 V even when 500 msec, or more elapse, in spite of no change in brake operation.

• Brake booster

• Delta S sensor (Pedal stroke speed sensor)

• Delta S sensor (Pedal stroke speed sensor) circuit

• Skid control ECU

WIRING DIAGRAM

WIRING DIAGRAM

2007 BRAKES Brake Control - Sequoia

Fig. 61: Stroke Sensor Malfunction - Wiring Diagram INSPECTION PROCEDURE

NOTE:

HINT:

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