C1552

POWER STEERING: ELECTRONIC POWER STEERING SYSTEM: C1552: PIG Power Supply Voltage Malfunction

DTC C1552 - PIG Power Supply Voltage Malfunction

DESCRIPTION

This circuit supplies power to drive the power steering motor.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (EPS FUSE)
(a) Remove the EPS fuse from the engine room relay block.
(b) Check resistance of the EPS fuses.
OK:
Below 1 Ohms
NG -- REPLACE FUSE
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (POWER STEERING ECU ASSEMBLY - BATTERY)




(a) Disconnect the A66 connector from the power steering ECU assembly.
(b) Measure the voltage according value(s) in the table below.
Standard voltage:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (POWER STEERING ECU ASSEMBLY - BODY GROUND)




(a) Measure the resistance according value(s) in the table below.
Standard resistance:





NOTICE: If replacing the power steering ECU assembly, initialize the rotation angle sensor value and calibrate the torque sensor zero point Programming and Relearning.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE POWER STEERING ECU ASSEMBLY