Power Steering System (For 1Vd-Ftv With Dpf) - Ig Power Source Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK HARNESS AND CONNECTOR (POWER STEERING ECU - BATTERY AND BODY GROUND)
POWER STEERING SYSTEM (for 1VD-FTV with DPF) - IG Power Source Circuit
DESCRIPTION
When the engine switch is turned on (IG), the IG power source circuit supplies positive (+) voltage to the power steering ECU.
WIRING DIAGRAM

INSPECTION PROCEDURE
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.CHECK HARNESS AND CONNECTOR (POWER STEERING ECU - BATTERY AND BODY GROUND)
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Disconnect the power steering ECU connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection | Switch Condition | Specified Condition |
E102-5 (IG) - Body ground | Engine switch on (IG) | 11 to 14 V |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection | Condition | Specified Condition |
E102-3 (GND) - Body ground | Always | Below 1 Ω |
Text in Illustration*a | Front view of wire harness connector (to Power Steering ECU) |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
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OK | |
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PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE ()
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