Toyota Venza manuals

Toyota Venza: PIG Power Supply Voltage Malfunction (C1552)

Toyota Venza Service Manual / Power Assist Systems / Power Steering System / PIG Power Supply Voltage Malfunction (C1552)

DESCRIPTION

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

DTC No.

DTC Detection Condition

Trouble Area

C1552

PIG power source circuit malfunction inside ECU

  • PIG power source circuit
  • Power steering ECU

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

  • If the power steering ECU has been replaced with a new one, perform the rotation angle sensor initialization and torque sensor zero point calibration (See page ).

  • Inspection the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1.

READ VALUE USING TECHSTREAM (PIG POWER SUPPLY)

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Start the engine.

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / EMPS / Data List.

(f) Select the items "PIG Power Supply" in the Data List and read the value displayed on the Techstream.

EMPS

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

PIG Power Supply

Power source voltage to active motor/

Min.: 0 V

Max.: 20.1531 V

11 to 14 V

The engine is running and power steering is operating.

OK:

Normal condition value is displayed the Techstream.


OK

REPLACE POWER STEERING ECU


NG

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:

Tester Connection

Condition

Specified Condition

D19-1 (PIG) - Body ground

Always

11 to 14 V

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D19-2 (PGND) - Body ground

Always

Below 1 Ω

Text in Illustration

*1

Front view of wire harness connector

(to Power Steering ECU)


OK

REPLACE POWER STEERING ECU


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

Assist Map Number Mismatch (C1582)
DESCRIPTION When an incorrect ECM or brake actuator assembly (skid control ECU) is installed after the assist map has been recorded in the power steering ECU, then DTC C1582 is stored because the ...

Assist Map Number Un-Writing (C1581)
DESCRIPTION The power steering ECU stores this DTC when it determines that the assist map is not written in the ECU. HINT: The assist map is data written in the power steering ECU to control the ...

Other materials about Toyota Venza:

Removal
REMOVAL CAUTION / NOTICE / HINT NOTICE: Make sure to select FACE mode before disconnecting the cable from the negative (-) battery terminal. PROCEDURE 1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM 2. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBL ...

Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1) (P0011,P0012)
DESCRIPTION Refer to DTC P0010 (See page ). DTC No. DTC Detection Condition Trouble Area P0011 The valve timing is stuck at a certain value when in the advance range (1 trip detection logic). ...

Installation
INSTALLATION PROCEDURE 1. INSTALL SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY NOTICE: Do not replace the spiral cable with the battery connected and the ignition switch on (IG). Do not rotate the spiral cable with the battery connected and the ig ...

© 2016-2022 Copyright www.tovenza.com

0.159