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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:

Safety Practices
The way you drive has a great deal to do with your tire mileage and safety. So cultivate good driving habits for your own benefit. Observe posted speed limits and drive at speeds that are safe for the existing weather conditions Avoid fast starts, stops and turns Avoid potholes and o ...

Operating the Passenger Power Windows
To open the window to the desired position, hold down the switch. To close the window to the desired position, pull up the switch. NOTE The power windows may be operated when the power window lock switch on the driver's door is in the unlocked position. The passenger windows ma ...

Front Stabilizer Removal/Installation [Mzr 2.3 Disi Turbo]
1. Remove the joint cover.. 2. Disconnect the steering shaft from the steering gear and linkage.. 3. Remove the front crossmember component.. 4. Remove in the order indicated in the table. 5. Install in the reverse order of removal. 6. Inspect the wheel alignment and adjust it if necessary ...

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