C1547

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1547: Vehicle Speed Sensor
C1547 - Vehicle Speed Sensor

DESCRIPTION

The power steering ECU receives vehicle speed signals from the skid control ECU via CAN communication. The power steering ECU provides appropriate assisting force in accordance with the vehicle speed signal.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM)

(a) Check if DTC U0073 is output Reading and Clearing Diagnostic Trouble Codes.

Result





HINT
DTC U0073 indicates a CAN communication malfunction in the power steering system.

B -- REPAIR CIRCUIT INDICATED BY OUTPUT
CODE Vehicle Stability Control System
A -- Continue to next step.

2. CHECK OTHER DTC OUTPUT (BRAKE CONTROL SYSTEM)

(a) Using the Techstream, check for DTCs and confirm that there are no problems in the brake control system Reading and Clearing Diagnostic Trouble Codes.

Result





B -- GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Vehicle Stability Control System

A -- REPLACE POWER STEERING ECU ASSEMBLY Removal