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

PROCEDURE

1. READ VALUE USING TECHSTREAM (PIG POWER SUPPLY)
(a) Turn the ignition switch off.
(b) Connect Techstream to the DLC3.
(c) Turn the ignition switch on (IG).
(d) Turn 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 Techstream.

EMPS:

OK:
The normal condition value is displayed on the Techstream display.
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:

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