DTC P0201-00: Fuel Injector No. 1 System: Circuit Malfunction (PYUL)
WARNING: This page is about a different variant/trim than selected.
P0201-00 (PCM (PYUL)) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Fuel injector No. 1 system: Circuit malfunction |
| Detection condition |
Determination condition
- The input signal from the fuel injector is missing continuously for the specified number of times even though the PCM controls fuel injector No. 1.
Precondition
- Battery voltage: 10.5 V or more
- Fuel injection control: except during fuel cut
|
| 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 fuel injector No. 1 and the PCM.
Purpose/reason (possible cause)
Malfunction in wiring harness (including connector/terminal) between fuel injector No. 1 and PCM
Referred to service information item
(See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Inspect fuel injector No. 1.
Purpose/reason (possible cause)
Fuel injector No. 1 malfunction
Referred to service information item
(See FUEL INJECTOR 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 |
Fuel injector No. 1 |
| Function explanation (DTC detection outline) |
|