On-Board Diagnostic - Engine Control System: Overview Mazda 3 BK

OBD PARAMETER IDENTIFICATION (PID) ACCESS

1. The PID mode allows access to certain data values, analog and digital inputs and outputs, calculated values and system status information. Since the PID values for output devices are the PCM internal data values, inspect each device to identify which output devices are malfunctioning.

Scheme 1

1. Perform the necessary vehicle preparation and visual inspection.
2. Connect the WDS or equivalent to the vehicle DLC-2 16-pin connector located in the driver compartment.
3. Retrieve the DTCs using the WDS or equivalent.

Scheme 2

1. Perform the necessary vehicle preparation and visual inspection.
2. Connect the WDS or equivalent to the vehicle DLC-2 16-pin connector located in the driver compartment.
3. Retrieve the pending trouble codes using the WDS or equivalent.

Scheme 3

1. Perform the necessary vehicle preparation and visual inspection.
2. Connect the WDS or equivalent to the vehicle DLC-2 16-pin connector located in the driver compartment.
3. Record the freeze frame PID data using the WDS or equivalent.

Scheme 4

1. Perform the necessary vehicle preparation and visual inspection.
2. Connect the WDS or equivalent to the vehicle DLC-2 16-pin connector located in the driver compartment.
3. Monitor the OBD-II system operating status using the WDS or equivalent.

Scheme 5

1. Perform the necessary vehicle preparation and visual inspection.
2. Connect the WDS or equivalent to the vehicle DLC-2 16-pin connector located in the driver compartment.
3. Access and monitor the PIDs using the WDS or equivalent.

Scheme 6

1. Perform the necessary vehicle preparation and visual inspection.
2. Connect the WDS or equivalent to the vehicle DLC-2 16-pin connector located in the driver compartment.
3. Access to the diagnostic monitoring test results and read the test results using the WDS or equivalent.

Scheme 7

1. Connect the WDS or equivalent to the DLC-2.
2. Cycle the ignition switch off, then to the ON position (Engine off).
3. Record the DTC if retrieved.
4. Clear all diagnostic data using the WDS or equivalent.