C1554
DTC C1521 Motor failure 1DTC C1531 ECM Malfunction 1
DTC C1532 ECM Malfunction 2
DTC C1533 ECM Malfunction 3
DTC C1534 ECM Malfunction 4
DTC C1554 Power Supply Relay Failure
Description of functions
As part of the fail safe function, power assist is suspended while an ECM system error diagnosis code is being output. However, if only C1533, or C1534 are output, rather than suspending power assist, control is continued with a limited assist level.
Inspection steps
CAUTION:
Always perform a steering zero point calibration after replacing the power steering computer ASSY. Programming and Relearning
