Mazda 6 manuals

Mazda 6 Service Manual: Intermittent concern troubleshooting

 

Vibration Method

1. If malfunction occurs or becomes worse while driving on a rough road or when engine is vibrating, perform the steps below.

Note

- Connectors not fully seated.

- Wire harnesses not having full play.

- Wires laying across brackets or moving parts.

- Wires routed too close to hot parts.

Inspection Method for Switch Connectors or Wires

1. Connect WDS or equivalent to DLC-2.

2. Turn ignition key to ON position (Engine OFF).

Note

3. Access PIDs for the switch you are inspecting.

4. Turn switch on manually.

5. Shake each connector or wire harness a bit vertically and horizontally while monitoring the PID.


Inspection Method for Sensor Connectors or Wires

1. Connect WDS or equivalent to DLC-2.

2. Turn ignition switch to ON position (Engine OFF).

Note

3. Access PIDs for the switch you are inspecting.

4. Shake each connector or wire harness a bit vertically and horizontally while monitoring the PID.


Inspection Method for Sensors

1. Connect WDS or equivalent to DLC-2.

2. Turn ignition switch to ON position (Engine OFF).

Note

3. Access PIDs for the switch you are inspecting.

4. Vibrate the sensor slightly with your finger.

Inspection Method for Actuators or Relays

1. Connect WDS or equivalent to DLC-2.

2. Turn ignition switch to ON position (Engine OFF).

Note

3. Prepare the Output State Control for actuators or relays that you are inspecting.

4. Vibrate the actuator or relay with your finger for 3 seconds

are Output State Control is activated.

Note


Water Sprinkling Method

Caution

If malfunction occurs only during high humidity or rainy/snowy weather, perform the following steps.

1. Connect WDS or equivalent to DLC-2 if you are inspecting sensors or switches.

2. Turn ignition switch to ON position (Engine OFF).

Note

3. Access PIDs for sensor or switch if you are inspecting sensors or switches.

4. If you are inspecting the switch, turn it on manually.

5. Spray water onto the vehicle or run it through a car wash.


No.28 spark plug condition
Diagnostic procedure ...

Engine control system operation inspection
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