INTERMITTENT CONCERN TROUBLESHOOTING [MZ-CD 1.6 (Y6)]

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Vibration Method

1.  If a malfunction occurs or becomes worse while driving on a rough road, or due to engine vibration, perform the steps below.

Примечание

•  There are several reasons vehicle or engine vibration could cause an electrical malfunction. Inspect for the following:

―  Connectors not fully seated.

―  Wiring harnesses not having full play.

―  Wiring harnesses laying across brackets or moving parts.

―  Wiring harnesses routed too close to hot parts.

•  An improperly routed, improperly clamped, or loose wiring harness can be pinched between parts.

•  The connector joints, points of vibration, and places where wiring harnesses pass through the fire wall, body panels, etc. are the major areas to be checked.

Inspection Method for Switch Connectors or Wires

1.  Connect the M-MDS to the DLC-2.

2.  Turn the engine switch to the ON position (Engine OFF).

Примечание

•  If the engine starts and runs, perform the following steps while idling.

3.  Access PIDs for the switch being inspected.

4.  Turn the switch on manually.

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

•  If the PID value is unstable, check for Poorly connected.

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Inspection Method for Sensor Connectors or Wires

1.  Connect the M-MDS to the DLC-2.

2.  Turn the engine switch to the ON position (Engine off).

Примечание

•  If the engine starts and runs, perform the following steps while idling.

3.  Access PIDs for the switch being inspected.

4.  Shake each connector or wiring harness vertically and horizontally while monitoring the PID.

•  If the PID value is unstable, check for a poor connection.

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Inspection Method for Sensors

1.  Connect the M-MDS to the DLC-2.

2.  Turn the engine switch to the ON position (Engine off).

Примечание

•  If the engine starts and runs, perform the following steps while idling.

3.  Access PIDs for the switch being inspected.

4.  Vibrate the sensor slightly with a finger.

•  If the PID value is unstable or a malfunction occurs, check for poor connection and/or a poorly mounted sensor.

Inspection Method for Actuators or Relays

1.  Connect the M-MDS to the DLC-2.

2.  Turn the engine switch to the ON position (Engine off).

Примечание

•  If the engine starts and runs, perform the following steps while idling.

3.  Prepare the Output State Control for actuators or relays that being inspected.

4.  Vibrate the actuator or relay with a finger for 3 s after the Output State Control is activated.

•  If a variable click sound is heard, check for a poor connection and/or a poorly mounted actuator or relay.

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Примечание

•  Vibrating the relays too strongly may result in.

Water Sprinkling Method

Осторожно

•  Indirectly change the temperature and humidity by spraying water onto the front of the radiator.

•  If a vehicle is subject to water leakage, the leakage may damage the control module. When testing a vehicle with a water leakage problem, special caution must be used.

1.  Connect the M-MDS to the DLC-2 if being inspected sensors or switches are being inspected.

2.  Turn the engine switch to the ON position (Engine off).

Примечание

•  If the engine starts and runs, perform the following steps while idling.

3.  Access PIDs for the sensor or switch if being inspected sensors or switches are being inspected.

4.  When inspecting a switch, turn it on manually.

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

•  If the PID value is unstable or a malfunction occurs, repair or replace applicable parts if necessary.

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