Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Steering Angle Sensor Power Source Voltage (C1432)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Brake / Brake Control / Dynamic Control Systems / Electronically Controlled Brake System(for Gasoline Model) / Steering Angle Sensor Power Source Voltage (C1432)

DESCRIPTION

This DTC is stored when the skid control ECU (brake actuator assembly) receives a +B line open signal from the steering angle sensor.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1432

Steering Angle Sensor Power Source Voltage

With the +BS terminal voltage between 9.6 and 16.5 V, a steering angle sensor power supply circuit malfunction signal is received from the steering angle sensor.
  • Steering angle sensor power supply
  • Steering angle sensor

WIRING DIAGRAM

Refer to DTC C1231.

Click here

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL)

(a) Remove the steering wheel and column cover.

*a

Front view of wire harness connector

(to Steering Angle Sensor)

(b) Make sure that there is no looseness at the locking part and the connecting part of the connector.

OK:

The connector is securely connected.

(c) Disconnect the G48 steering angle sensor connector.

(d) Check both the connector case and the terminals for deformation and corrosion.

OK:

No deformation or corrosion.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

G48-4 (BAT) - Body ground

Always

11 to 14 V

G48-9 (IG1) - Body ground

Engine switch on (IG)

11 to 14 V
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
OK

2.

CHECK HARNESS AND CONNECTOR (GROUND TERMINAL)

(a) Turn the engine switch off.

*a

Front view of wire harness connector

(to Steering Angle Sensor)

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

NOTICE:

Before measuring the resistance of the steering angle sensor, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key or switches, or opening or closing the doors.

Standard Resistance:

Tester Connection

Condition

Specified Condition

G48-6 (ESS) - Body ground

1 minute after engine switch off

Below 1 Ω
OK

REPLACE STEERING ANGLE SENSOR

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT)
    Motor Circuit (C1428)

    Steering Angle Sensor Internal Circuit (C1433)

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