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Home >> Mazda >> 2022 >> CX-5 S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (On-Board Diagnostic - Engine Control System (VIN Y) (2 Of 7)) >> DTC P013A-00, P013B-00: Slow Response >> Details On DTCs

Details On DTCs

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DTC P013A-00, P013B-00: (PCM, VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE

DESCRIPTION P013A-00:
  • HO2S: Slow response (during transition from rich to lean)

P013B-00:
  • HO2S: Slow response (during transition from lean to rich)
DETECTION CONDITION Determination conditions P013A-00:
  • The response speed of the HO2S input signal when the air/fuel ratio is fluctuated from rich to lean is slow.
P013B-00:
  • The response speed of the HO2S input signal when the air/fuel ratio is fluctuated from lean to rich is slow.
Preconditions
  • Fuel injection control: during fuel cut (1) (P013A-00:)
  • Catalytic converter estimated temperature: specified value or more
  • HO2S estimated temperature: specified value or more
  • HO2S output voltage during fuel cut: Specified value or more (P013A-00:)
  • HO2S output voltage at fuel cut recovery: Specification or less (P013B-00:)
  • The following DTCs are not detected:
  • HO2S heater: P0037-00:, P0038-00:
  • MAF sensor: P0102-00:, P0103-00:
  • ECT sensor: P0117-00:, P0118-00:
    • HO2S: P0137-00:, P0138-00:, P0140-00:
Drive cycle
Self test type
  • CMDTC self test
Sensor used
  • HO2S
FAIL-SAFE FUNCTION
  • Not applicable
VEHICLE STATUS WHEN DTCs ARE OUTPUT
  • Illuminates check engine light.
POSSIBLE CAUSE
  • HO2S malfunction
  • HO2S connector or terminals malfunction
  • HO2S loose
  • Exhaust system leakage
    • TWC damaged or malfunction
  • HO2S deterioration
  • HO2S heater malfunction
  • Improper operation of purge control system
  • Purge solenoid valve malfunction
    • Improper connection of evaporative hose (purge solenoid valve side)
  • Engine malfunction
    • Insufficient engine compression
  • PCM malfunction
(1) Condition can be verified by displaying PIDs using M-MDS