DTC P2184-00: ECT Sensor No. 2 Circuit Low Input: Notes

WARNING: This page is about a different variant/trim than selected.

DTC P2184-00: (PCM, VIN M) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P2184-00:	ECT sensor No. 2 circuit low 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 1AM is below 0.23 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 during the first drive cycle. FREEZE FRAME DATA/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 ground in wiring harness between ECT sensor No. 2 terminal A and PCM terminal 1AM ECT sensor No. 2 signal circuit and ground circuit are shorted to each other PCM malfunction
Courtesy of MAZDA MOTORS CORP.

CAUTION:

Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.