Circuit description: Notes
The engine control computer detects that the transmission is in the neutral state based on the signal from the neutral position switch (for Transmission M/T) or the neutral start switch ASSY (for Transmission A/T).
DTC DETECTION CONDITION
| DTC No. | DTC detection conditions | Suspected parts |
|---|---|---|
| P0851 | Transmission M/T | |
| When shifting the gear position while driving the vehicle, the neutral position switch is left "Low". (Detected based on the change of relationship between the vehicle speed and the engine speed) (2 trips detection logic) |
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| Transmission A/T | ||
| When the range selector is neither in N nor P range, the neutral switch is in P or N range and the range information from the transmission control computer indicates a position other than P or N range. |
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| When the range selector is in N or P range, the neutral switch is in P or N range and the range information from the transmission control computer indicates a position other than P or N range. |
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| P0852 | Transmission M/T | |
| When shifting the gear position while driving the vehicle, the neutral position switch is left "High". (Detected based on the change of relationship between the vehicle speed and the engine speed) (2 trips detection logic) |
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| Transmission A/T | ||
| When the range selector is in N or P range, the neutral switch is in a range other than P or N ranges and the range information from the transmission control computer indicates P or N range. |
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| When the range selector is neither in N nor P range, the neutral switch is in a range other than P or N range and the range information from the transmission control computer indicates P or N range. |
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