Dtc C1551 Ig Power Supply Voltage Malfunction

Steering. Lexus Is250, Is220D. Gse20 Ale20
Power Steering. Lexus Is250, Is220D. Gse20 Ale20

DESCRIPTION

INSPECTION PROCEDURE

REPLACE POWER STEERING ECU ASSEMBLY

DTC C1551 IG Power Supply Voltage Malfunction


DESCRIPTION

If the power steering ECU assembly determines that there is a malfunction in the IG circuit inside the ECU, it outputs this DTC. This DTC is not output when there is an open circuit in the wire harness connected to terminal IG or a battery voltage drop.

DTC No.
DTC Detection Condition
Trouble Area
C1551
IG power source circuit malfunction inside ECU
Power steering ECU assembly

INSPECTION PROCEDURE

1.REPLACE POWER STEERING ECU ASSEMBLY

  1. Replace the power steering ECU assembly (Click here).

NOTICE:
If replacing the power steering ECU assembly, initialize the rotation angle sensor value and calibrate the torque sensor zero point (Click here).

NEXT

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