DTC P0098 00: IAT Sensor No. 2 Circuit High Input: Notes
DTC P0098:00 DETECTION CONDITIONS AND POSSIBLE CAUSES (SKYACTIV-G 2.0, SKYACTIV-G 2.5)
| DTC P0098:00 |
IAT sensor No. 2 circuit high input |
| DETECTION CONDITION |
- If the PCM detects that the IAT sensor No. 2 voltage at the PCM terminal 1CE is 4.96 V or more
for 5 s
, the PCM determines that the IAT sensor No. 2 circuit voltage is high.
Diagnostic support note
- This is a continuous monitor (CCM).
- The check engine light illuminates if the PCM detects the above malfunction condition during the 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 |
- MAP sensor/IAT sensor No. 2 connector or terminals malfunction
- PCM connector or terminals malfunction
- IAT sensor No. 2 malfunction
- Short to power supply in wiring harness between MAP sensor/IAT sensor No. 2 terminal B and PCM terminal 1CE
- Open circuit in wiring harness between the following terminals:
- MAP sensor/IAT sensor No. 2 terminal B-PCM terminal 1CE
- MAP sensor/IAT sensor No. 2 terminal A-PCM terminal 1BX
- PCM malfunction
|
 Courtesy of MAZDA MOTORS CORP.
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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) |
| IAT2 |
°C, °F |
Intake air temperature (No. 2) |
|
| V |
IAT sensor No. 2 voltage |
- IAT2 is 20 °C {68 °F}: Approx. 3.57 V
- IAT2 is 40 °C {104 °F}: Approx. 2.70 V
- IAT2 is 60 °C {140 °F}: Approx. 1.87 V
|