OBDII Code List

C1552 TOYOTA - Power Steering ECU Power Supply Voltage Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Power Steering ECU
  • Power Steering ECU harness is open or shorted
  • Power Steering ECU circuit poor electrical connection

Tech notes

In some vehicles, it is necessary to replace the Power Steering ECU when there is a problem in the power relay because each relay is built into the Power Steering ECU.

Possible symptoms

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

C1552 Toyota Description

When a problem occurs in the power steering system, the power source relay circuit is shut off to stop the power assist. The Power Steering ECU monitors the Power Supply Voltage. The Power Steering ECU sets the OBDII code when the Power Supply Voltage is not to factory specifications.
OBDII Code C1552 Toyota - Power Steering ECU Power Supply Voltage Malfunction -

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C1552 TOYOTA Comments

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