SYSTEM DIAGRAM
How To Proceed With Troubleshooting
Basic InspectionVehicle identification
- Vehicle identification number
The vehicle identification number (VIN) is the legal identifier for your vehicle.
This is the primary identification number for your Toyota. It is used in registering
the ownership of your vehicle.
This number is s ...
IG Power Supply Voltage Malfunction (C1551)
DESCRIPTION
The power steering ECU distinguishes the ignition switch status as ON or off
through the IG power source circuit.
DTC No.
DTC Detection Condition
Trouble Area
C1551
IG power source ci ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Disconnect the 2A, 2C and 2F main body ECU (driver side junction block assembly)
connectors.
(b) Measure the voltage and resistance according to the value(s) in the table ...