DTC P2185:00: ECT Sensor No. 2 Circuit High Input: Notes
DTC P2185:00 DETECTION CONDITIONS AND POSSIBLE CAUSES (SKYACTIV-G 2.0, SKYACTIV-G 2.5)
| DTC P2185:00 |
ECT sensor No. 2 circuit high input |
| DETECTION CONDITION |
- The PCM monitors the ECT sensor No. 2 signal. If the PCM detects that the ECT sensor No. 2 voltage at the PCM terminal 2F is above 4.92 V
for 5 s
, the PCM determines that the ECT sensor No. 2 circuit has a malfunction.
Diagnostic support note
- This is a continuous monitor (engine cooling system).
- The check engine light illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
- PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
- FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
- DTC is stored in the PCM memory.
|
| FAIL-SAFE FUNCTION |
Not applicable |
| POSSIBLE CAUSE |
- ECT sensor No. 2 connector or terminals malfunction
- ECT sensor No. 2 malfunction
- PCM connector or terminals malfunction
- Short to power supply in wiring harness between ECT sensor No. 2 terminal A and PCM terminal 2F
- Open circuit in wiring harness between the following terminals:
- ECT sensor No. 2 terminal A-PCM terminal 2F
- ECT sensor No. 2 terminal B-PCM terminal 2AJ
- PCM malfunction
|
 Courtesy of MAZDA MOTORS CORP.
|
CAUTION:
- Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.
RELATED PIDS
| Item (definition) |
Unit/Condition |
Definition |
Condition/Specification (Reference) |
| ECT2_V 1 |
V |
ECT sensor No. 2 voltage |
- ECT is 20 °C {68 °F}: Approx. 3.10 V
- ECT is 40 °C {104 °F}: Approx. 2.16 V
- ECT is 60 °C {140 °F}: Approx. 1.40 V
- ECT is 80 °C {176 °F}: Approx. 0.87 V
- ECT is 100 °C {212 °F}: Approx. 0.54 V
|