DTC P0117:00 [Pcm (SKYACTIV-G)]: Outline
WARNING: This page is about a different variant/trim than selected.
DTC P0117:00 (PCM, SKYACTIV-G) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
ECT sensor No. 1 circuit low input |
| Detection condition |
- The PCM monitors the ECT sensor No. 1 signal. If the PCM detects that the ECT sensor No. 1 voltage at the PCM terminal 1AH is below 0.23 V for 5 s, the PCM determines that the ECT sensor No. 1 circuit has a malfunction.
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| Fail-safe |
- Fixes the water temperature for the engine control at 40 °C {104 °F}, and for the idle air control at 80 °C {176 °F}.
- Operates the cooling fan (high speed rotation).
- Inhibits the fuel cut control during shift change.
|
| Possible cause |
- Engine overheating (cooling system malfunction)
- ECT sensor No. 1 connector or terminals malfunction
- ECT sensor No. 1 malfunction
- Short to ground in ECT sensor No. 1 signal circuit
- PCM connector or terminals malfunction
- Short circuit in ECT sensor No. 1 signal circuit and ground circuit
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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