C1514

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511/11-C1514/11: Torque Sensor 1 Malfunction
C1514/11 - Torque Sensor Power Supply Voltage Malfunction

DESCRIPTION

The torque sensor converts the steering wheel rotation torque into electric signals and sends them to the power steering ECU assembly.

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:
If the power steering ECU assembly has been replaced, perform assist map writing Programming and Relearning.

PROCEDURE

1. CHECK CONNECTOR CONNECTION CONDITION (TORQUE SENSOR - ECU)

(a) Check the connection condition of the torque sensor connector.

OK:

Torque sensor connector is securely connected to the power steering ECU assembly.

NG -- CONNECT CONNECTOR
OK -- Continue to next step.

2. CHECK POWER STEERING ECU ASSEMBLY (TRQV, TRQF VOLTAGE)

(a) Turn the power switch on (IG).

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

Standard Voltage:

Text in Illustration

NG -- REPLACE POWER STEERING ECU ASSEMBLY Removal
OK -- Continue to next step.

3. CHECK POWER STEERING ECU ASSEMBLY (TRQ1, TRQ2 VOLTAGE)

(a) Turn the power switch on (READY).

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

Standard Voltage:

Text in Illustration

NG -- REPLACE ELECTRIC POWER STEERING COLUMN SUB-ASSEMBLY Removal

OK -- REPLACE POWER STEERING ECU ASSEMBLY Removal