C15C7 - DC Motor Power Source Voltage Malfunction

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

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

Possible symptoms

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

C15c7 Description

The Steering Control ECU monitors PIG (motor power source voltage) and detects a malfunction in the power supply relay (located inside the steering control ECU). If the Steering Control ECU detects a malfunction, it will turn on the master warning light, store the Diagnostic Trouble Code (DTC), and stop Variable Gear Ratio Steering (VGRS) operation.
OBDII Code C15c7 - DC Motor Power Source Voltage Malfunction - AutoCodes.com

C15C7 Information for specific makes

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