C1552

POWER STEERING: POWER STEERING SYSTEM: C1552: PIG Power Supply Voltage Malfunction

DTC C1552 - PIG Power Supply Voltage Malfunction

DESCRIPTION

When a problem occurs in the power steering system, the power source relay circuit is shut off to stop the power assist.






WIRING DIAGRAM





INSPECTION PROCEDURE
NOTICE: If the steering column or power steering ECU has been replaced, perform the rotation angle sensor initialization and torque sensor zero point calibration Programming and Relearning.

PROCEDURE

1. READ VALUE USING TECHSTREAM (PIG POWER SUPPLY)
(a) Turn the ignition switch to OFF.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / EMPS / Data List /
(f) Select the item "PIG Power Supply" in the Data List and read the value displayed on the Techstream.

EMPS:





OK:
The normal condition value is displayed on the Techstream.
NG -- CHECK HARNESS AND CONNECTOR (POWER STEERING ECU - BATTERY AND BODY GROUND)
OK -- CHECK INTERMITTENT PROBLEMS
2. CHECK HARNESS AND CONNECTOR (POWER STEERING ECU - BATTERY AND BODY GROUND)




(a) Disconnect the connector from the power steering ECU.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:





(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE POWER STEERING ECU