DTC P0850: Notes

DTC P0850 [L3] CHART

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