Mazda 3 manuals

Mazda 3 Service Manual: Electro Hydraulic Power Assist Steering (EHPAS) Control Module Inspection

Mazda 3 Service Manual / Steering / Linkage, Power / Electro Hydraulic Power Assist Steering (EHPAS) Control Module Inspection

Terminal Voltage Table (Reference)



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


Electro Hydraulic Power Assist Steering (EHPAS) Control Module Configuration
CAUTION: If the EHPAS CM configuration is not completed, the EHPAS will not operate properly. If the EHPAS CM is replaced, always carry out the EHPAS CM configuration so that the EHPAS o ...

Oil Control Valve (OCV) Inspection [Mzr 2.0, Mzr 2.5]
Coil Resistance Inspection 1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Remove the plug hole plate.. 4. Disconnect the OCV connector. 5. Measure the resistance ...

Other materials:

Fuel Gauge Sender Unit Inspection
MZR 2.3 DISI Turbo, SKYACTIV-G 2.0 NOTE: The fuel gauge sender unit is integrated with the fuel pump unit. 1. Disconnect the negative battery cable.. 2. Remove the rear seat cushion.. 3. Remove the fuel pump unit.. 4. Verify that the resistance between terminals A and C of the f ...

Power Brake Unit Removal/Installation [Mzr 2.0, Skyactiv G 2.0, Mzr 2.5]
CAUTION: Once the brake switch clearance has automatically been adjusted, it cannot be adjusted again. Therefore, replace the switch with a new one when replacing the power brake unit or performing any procedure that changes the pedal stroke. Secure the steering wheel using tap ...

Combination Switch Disassembly/Assembly
CAUTION: Handling the air bag module improperly can accidentally deploy the air bag module, which may seriously injure you. Read the air bag system service warnings and cautions before handling the air bag module.. 1. Switch the ignition to off. 2. Disconnect the negative batte ...

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