DTC P0037-00: Ho2S Heater Control Circuit Low Input: Outline
DTC P0037:00 (PCM, VINs 7, L, M, US) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
HO2S heater control circuit low input |
| Detection condition |
- When the PCM controls the HO2S heater, the voltage input to the PCM is too low.
|
| Fail-safe |
- Stops fuel feedback control
|
| Possible cause |
- HO2S connector or terminals malfunction
- F8 15 A fuse malfunction
- Short to ground in HO2S heater power supply circuit
- Open circuit in HO2S heater power supply circuit
- HO2S heater malfunction
- PCM connector or terminals malfunction
- Open circuit in HO2S heater control circuit
- Short to ground in HO2S heater control circuit
- PCM malfunction
|
 Courtesy of MAZDA MOTORS CORP.
|