ELECTRO HYDRAULIC POWER ASSIST STEERING (EHPAS) CONTROL MODULE INSPECTION


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Terminal Voltage Table (Reference)

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Terminal

Signal name

Connected to

Measured item

Measured terminal (measured condition)

Standard

Inspection item(s)

1A
Ground
Ground point
Voltage
Under any condition
1 V or less
•  Wiring harness (1A—ground point)
1B
Battery power supply
Battery
Voltage
Under any condition
B+
•  Wiring harness (1B—battery)
•  Fuse (EHPAS 80A)
2A
2B
CAN_L
Inspect under DTC inspection.
2C
2D
CAN_H
Inspect under DTC inspection.
2E
2F
Ignition power supply
Ignition switch or IG1 relay
Voltage
Switch the ignition to ON
B+
•  Wiring harness (2F—ignition switch or IG1 relay—battery)
•  Fuse (ABS IG 7.5A)
Switch the ignition to off
1 V or less