DTC P0072-00: Ambient Temperature Sensor System: Low Input (PYUL)
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P0072-00 (PCM (PYUL)) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Ambient temperature sensor system: Low input |
| Detection condition |
- The ambient temperature sensor voltage is less than the standard.
|
| Fail-safe |
- Inhibits engine-stop by i-stop control.
|
| Vehicle status when DTCs are output |
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (See CLEARING DTC
)
- Perform the KOEO or KOER self test. (See DTC INSPECTION
)
|
| Inspection/action procedure |
- Proceed with the inspection/action in the order from Step 1 below.
- After part repair or replacement, perform the repeatability verification procedure and perform a DTC inspection. (See DTC INSPECTION
)
- If the DTC inspection indicates the same DTC again, go to the next step.
- Inspect the wiring harness (including connector/terminal) between the ambient temperature sensor and thePCM.
Purpose/reason (possible cause)
Malfunction in wiring harness (including connector/terminal) between ambient temperature sensor and PCM
Referred to service information item
(See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Inspect the ambient temperature sensor.
Purpose/reason (possible cause)
Ambient temperature sensor malfunction
Referred to service information item
(See AMBIENT TEMPERATURE SENSOR INSPECTION
.)
- Replace the PCM.
Purpose/reason (possible cause)
PCM malfunction (no other possible malfunction considered)
Referred to service information item
(See PCM REMOVAL/INSTALLATION [H3T]
)
|
Refer to SYSTEM WIRING DIAGRAMS
.
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
PCM |
| 2 |
Ambient temperature sensor |
| Function explanation (DTC detection outline) |
|