DTC P0850: Notes
DTC P0850 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0850 |
Neutral switch circuit malfunction |
| DETECTION CONDITION |
- PCM monitors changes in input voltage from neutral switch. If PCM does not detect PCM terminal 1X voltage changes while running vehicle with vehicle speed above 30 km/h {19 mph}
and clutch pedal turns press and depress 10 times
repeatedly, PCM determines that neutral switch circuit has malfunction
Diagnostic support note
- This is a continuous monitor (CCM).
- MIL illuminates if PCM detects above malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for the same malfunction has been stored in PCM.
- PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.
- FREEZE FRAME DATA is available.
- DTC is stored in PCM memory.
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| POSSIBLE CAUSE |
- Neutral switch malfunction
- Poor connection of neutral switch connector or PCM connector
- Short to ground between neutral switch terminal B and PCM connector terminal 1X
- Open circuit in wiring harness between neutral switch terminal B and PCM connector terminal 1X
- Open circuit in wiring harness between ground and brake switch terminal A.
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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