Description
Transmission range switch is turn ON when the selector lever is P or N.
ECM detects the position because the continuity of the line (the ON) exists.
DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P0850 | P-N POS SW/CIRCUIT (Park/neutral switch input circuit) | The signal of transmission range switch is not changed in the process of engine starting and driving. |
POSSIBLE CAUSE
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Do you have CONSULT? Do you have CONSULT? YES >> GO TO 2.
NO >> GO TO 5.
2.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
>> GO TO 3.
3.CHECK PNP SIGNAL FUNCTION
With CONSULT
Selector lever position | Known-good signal |
N or P position | ON |
Except above position | OFF |
Is the inspection result normal? YES >> GO TO 4.
NO >> Proceed to EC-383, "Diagnosis Procedure".
4.PERFORM DTC CONFIRMATION PROCEDURE
CAUTION: Always drive vehicle at a safe speed.
ENG SPEED | 1,000 - 6,375 rpm |
COOLAN TEMP/S | More than 65°C (149°F) |
B/FUEL SCHDL | 3.25 - 31.8 msec |
VHCL SPEED SE | More than 64 km/h (40 mph) |
Selector lever | Suitable position |
Is 1st trip DTC detected? YES >> Proceed to EC-383, "Diagnosis Procedure".
NO >> INSPECTION END
5.PERFORM COMPONENT FUNCTION CHECK
Is the inspection result normal? YES >> INSPECTION EN
NO >> Proceed to EC-383, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK TRANSMISSION RANGE SWITCH SIGNAL CIRCUIT
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK TRANSMISSION RANGE SWITCH
Check the transmission range switch. Refer to TM-111, "Component Inspection".
Is the inspection result normal? YES >> GO TO 5.
NO >> Replace transmission range switch. Refer to TM-220, "Removal and Installation".
5.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
>> INSPECTION END
Connector Symbols
Most of connector symbols in wiring diagrams are shown from the terminal
side.
Connector symbols shown from the terminal side are enclosed by
a single line and followed by the direction mark.
Connector symbols shown from the harness side are enclosed by
a double line and foll ...
CVT control system
Wiring Diagram
...
Symptom diagnosis
HEATER AND AIR CONDITIONING SYSTEM CONTROL SYMPTOMS
Diagnosis Chart By Symptom
NOTE:
Perform the self-diagnoses with CONSULT before performing the symptom diagnosis.
If DTC is detected, perform
the corresponding diagnosis.
Symptom
Corresponding malfunction part
Refere ...