Diesel Data: Automotive Repair

C1552

DTC C1552 PIG Power Supply Voltage Malfunction

DESCRIPTION
The power steering converter assembly boosts the PIG power supply battery voltage from 12 V to approximately 46 V. This voltage is then supplied to the power steering ECU to operate the motors. As a fail-safe function, when the PIG power supply and power steering converter assembly are malfunctioning, power assistance stops.

C1552:




WIRING DIAGRAM:





INSPECTION PROCEDURE

Steps 1-2(Part 1):




Steps 2(Part 2)-3: