Mazda 2: Electric Power Steering (EPS)

Mazda 2 2007-2014 Service Manual / Steering / Electric Power Steering (EPS)

ELECTRIC POWER STEERING (EPS) SYSTEM WIRING DIAGRAM

Mazda 2. ELECTRIC POWER STEERING (EPS)

ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS

On-Board Diagnostic (OBD) Test Description

Read/clear diagnostic results

PID/Data monitor and record

Reading DTCs Procedure

1. Connect the M-MDS (IDS) to the DLC-2.

2. After the vehicle is identified, select the following items from the initialization screen of the IDS.

  1. Select "Self Test".
  2. Select "Modules".
  3. Select "EPS".

3. Verify the DTC according to the directions on the screen.

4. After completion of repairs, clear all DTCs stored in the EPS CM. (See Clearing DTCs Procedures).

Clearing DTCs Procedures

1. Connect the M-MDS (IDS) to the DLC-2.

2. After the vehicle is identified, select the following items from the initialization screen of the IDS.

  1. Select "Self Test".
  2. Select "Modules".
  3. Select "EPS".

3. Verify the DTC according to the directions on the screen.

4. Press the clear button on the DTC screen to clear the DTC.

5. Switch the ignition to off.

6. Switch the ignition to ON and wait for 5 s or more.

7. Perform DTC inspection. (See Reading DTCs Procedure).

8. Verify that no DTCs are displayed.

PID/Data Monitor and Record Procedure

1. Connect the M-MDS (IDS) to the DLC-2.

2. After the vehicle is identified, select the following items from the initialization screen of the IDS.

  1. Select "DataLogger".
  2. Select "Modules".
  3. Select "EPS".

3. Select the applicable PID from the PID table.

4. Verify the PID data according to the directions on the screen.

NOTE:

DTC Table

Mazda 2. ELECTRIC POWER STEERING (EPS)

Mazda 2. ELECTRIC POWER STEERING (EPS)

Mazda 2. ELECTRIC POWER STEERING (EPS)

PID/DATA Monitor Table

Mazda 2. ELECTRIC POWER STEERING (EPS)

Mazda 2. ELECTRIC POWER STEERING (EPS)

Mazda 2. ELECTRIC POWER STEERING (EPS)

DTC C1B00:2F/C1B00:61/C1B00:62

Mazda 2. DTC

Diagnostic Procedure

Mazda 2. DTC

DTC C1B00:54, C1B00:95

Mazda 2. DTC

Diagnostic Procedure

Mazda 2. DTC

Mazda 2. DTC

DTC C200B:2F/C200B:61/C200C:2F

Mazda 2. DTC

Diagnostic Procedure

Mazda 2. DTC

DTC C200D:49/U2011:49/U2011:61

Mazda 2. DTC

Diagnostic Procedure

Mazda 2. DTC

DTC U0001:88

Mazda 2. DTC

Diagnostic Procedure

DTC U0100:00

Mazda 2. DTC

Diagnostic Procedure

DTC U0300:00

Mazda 2. DTC

Diagnostic Procedure

Mazda 2. DTC

DTC U0401:00

Mazda 2. DTC

Diagnostic Procedure

Mazda 2. DTC

DTC U2100:00

Mazda 2. DTC

Diagnostic Procedure

Mazda 2. DTC

DTC U3000:05/U3000:41/U3000:43/U3000:46/U3000:49/U3000:61/U3000:96

Mazda 2. DTC

Diagnostic Procedure

Mazda 2. DTC

Mazda 2. DTC

DTC U3003:16/U3003:17

Mazda 2. DTC

System wiring diagram

Mazda 2. DTC

Diagnostic Procedure

Mazda 2. DTC

Mazda 2. DTC

DTC U3004:49

Mazda 2. DTC

Diagnostic Procedure

Mazda 2. DTC

ELECTRIC POWER STEERING (EPS) SYSTEM WIRING DIAGRAM

Mazda 2. ELECTRIC POWER STEERING (EPS) SYSTEM WIRING DIAGRAM

FOREWORD

PRECAUTION

Intermittent Concern Troubleshooting

Vibration method

NOTE:

Inspection method for switch and/or sensor connectors or wires

1. Connect the M-MDS to the DLC-2.

2. Switch the ignition to ON (engine off).

NOTE:

3. Access PIDs for the switch you are inspecting.

4. Turn the switch on manually.

5. Slightly shake each connector or wiring harness vertically and horizontally while monitoring the PID.

Mazda 2. PRECAUTION

Inspection method for sensors

1. Connect the M-MDS to the DLC-2.

2. Switch the ignition to ON (engine off).

NOTE:

3. Access PIDs for the switch you are inspecting.

4. Vibrate the sensor slightly with your finger.

Connector terminal inspection method

1. Inspect the connection of each female terminal.

2. Insert the male terminal to the female terminal and inspect the female terminal for looseness.

Mazda 2. PRECAUTION

SYMPTOM TROUBLESHOOTING

Mazda 2. SYMPTOM TROUBLESHOOTING

NO.1 ELECTRIC POWER STEERING (EPS) WARNING LIGHT DOES NOT ILLUMINATE WITH IGNITION SWITCH AT ON

Mazda 2. SYMPTOM TROUBLESHOOTING

Diagnostic procedure

Mazda 2. SYMPTOM TROUBLESHOOTING

NO.2 ELECTRIC POWER STEERING (EPS) WARNING LIGHT DOES NOT GO OUT EVEN THOUGH ENGINE HAS STARTED

Mazda 2. SYMPTOM TROUBLESHOOTING

Diagnostic procedure

Mazda 2. SYMPTOM TROUBLESHOOTING

Mazda 2. SYMPTOM TROUBLESHOOTING

NO.3 ELECTRIC POWER STEERING (EPS) WARNING LIGHT FLASHING

Mazda 2. SYMPTOM TROUBLESHOOTING

Diagnostic procedure

Mazda 2. SYMPTOM TROUBLESHOOTING

NO.4 POWER ASSIST DIFFERS BETWEEN RIGHT AND LEFT TURNS

Mazda 2. SYMPTOM TROUBLESHOOTING

Diagnostic procedure

Mazda 2. SYMPTOM TROUBLESHOOTING

Mazda 2. SYMPTOM TROUBLESHOOTING

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