Operation CHARM: Car repair manuals for everyone.

General Information





Electronic Hydraulic Power Steering System
C1604 ECU Hardware Error - General Information

Component Location





General Description

The MPU (Motor Pump Unit) checks the inner circuit of MPU ECU itself in order to prevent it from malfunction.
This test includes the hard-ware check for RAM, ROM, EEPROM, ALU and PLL in the MPU.

DTC Description

The MPU sets this code if there is a hard-ware error in MPU.

DTC Detecting Condition