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Home >> Mazda >> 2020 >> CX-30 Select, AWD >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (3 Of 4) >> DTC P187B-00: Pcm I-ACTIV AWD Control System >> Diagnostic Procedure

Diagnostic Procedure

DTC P187B:00 (PCM, SKYACTIV-G) DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
  • Record the freeze frame data/snapshot data.
    NOTE:
    • Recording can be facilitated using the screen capture function of the PC.
 - Go to the next step.
2 VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY
  • Verify related Service Bulletins, on-line repair information, or Service Information availability.
  • Is any related Information available?
 Yes Perform repair or diagnosis according to the available information.
  • If the vehicle is not repaired, go to the next step.
No Go to the next step.
3 VERIFY TIRES FOR EACH WHEEL
  • Inspect the tires installed to each wheel for the following. (See WHEEL AND TIRE SPECIFICATION (US) .)
    • Tire size
    • Tire pressure
      • Do the tires have the same brand?
  • Are all the items normal?
 Yes Repair or replace the malfunctioning location and perform the repair completion verification.
No Go to the next step.
Repair completion verification 1 VERIFY THAT VEHICLE IS REPAIRED
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • Replicate the vehicle conditions at the time the DTC was detected using the following procedure.
    • Switch the ignition ON (engine off)
  • Perform the DTC inspection for the PCM.

    (See DTC INSPECTION .)

  • Is the same Pending DTC present?
 Yes Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW (US) .)
If the CAN communication is normal, perform the diagnosis from Step 1.
No Go to the next step.
Repair completion verification 2 VERIFY IF OTHER DTCs DISPLAYED
  • Perform the DTC inspection. (See DTC INSPECTION .)
  • Are any other DTCs displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
No DTC troubleshooting completed.
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