LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (On-Board Diagnostic - Pcm (VIN A) (2 Of 4)) >> DTC P0500-00: Vehicle Speed Signal System: Circuit Malfunction (PYUL)

DTC P0500-00: Vehicle Speed Signal System: Circuit Malfunction (PYUL)

WARNING: This page is about a different variant/trim than selected.
P0500: 00 (PCM (PYUL)) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Vehicle speed signal system: Circuit malfunction
Detection condition
  • Under the following conditions, the vehicle speed signal input from the electronically controlled brake unit/DSC HU/CM is the malfunction value.
    • Shift position: except P or N position
    • Charging efficiency: specification or more
    • Engine speed: specified rpm or more
    • Brake switch: OFF
Fail-safe
  • The vehicle speed for control is fixed at 0 km/h {0 mph}.
  • Inhibits engine-stop by i-stop control.
Vehicle status when DTCs are output
  • Not applicable
Repeatability verification procedure
WARNING:
  • Observe legal speed limits when driving the vehicle and perform the procedure in a location where safety can be assured.
  • To prevent an accident, work with two people when the vehicle is being driven (one person drives vehicle, other person operates M-MDS).
  1. Clear the DTC recorded in the memory. (See CLEARING DTC .)
  2. Replicate the vehicle conditions at the time the DTC was detected using the following procedure.
    • Access the following PCM PIDs using the M-MDS. (See PID/DATA MONITOR INSPECTION .)
    • Drive at a constant speed for 14 s under the following conditions.
      • Shift position: except P or N position
      • Charging efficiency: above 40 %
      • Engine speed: 2, 000 rpm or more
      • Brake switch: OFF
Inspection/action procedure
  • This DTC may be displayed due to the following DTCs. If the following DTCs are displayed, prioritizeinspection/action.
    • Electronically controlled brake unit/DSC HU/CM (See DTC TABLE [DSC] )
      • Electronically controlled brake unit/DSC HU/CM malfunction
      • Front ABS wheel-speed sensor malfunction
  • Proceed with the inspection/action in the order from Step 1 below.
  • After part repair or replacement, perform the repeatability verifi cation procedure and perform a DTCinspection. (See DTC INSPECTION )
  • If the DTC inspection indicates the same DTC again, go to the next step.
  1. Replace the PCM.

    Purpose/reason (possible cause) 

    PCM malfunction (no other possible malfunction considered)

    Referred to service information item 

    See PCM REMOVAL/INSTALLATION

System wiring diagram
  • Not applicable
Function explanation (DTC detection outline)
  • Not applicable