P1723

P1723 CVT SPEED SENSOR FUNCTION





Description
The vehicle speed sensor CVT [output speed sensor (secondary speed sensor)] detects the revolution of parking gear and generates a pulse signal. The pulse signal is sent to the TCM, which converts it into vehicle speed.
The input speed sensor (primary speed sensor) detects the primary pulley revolution speed and sends a signal to the TCM.




DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE

CAUTION:
Always drive vehicle at a safe speed.

NOTE:
Immediately after performing any "DTC CONFIRMATION PROCEDURE", always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1. CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select "Data Monitor" in "TRANSMISSION".
3. Start engine and maintain the following conditions for at least 5 consecutive seconds.

VEHICLE SPEED : 10 km/h (6 MPH) or more
ACC PEDAL OPEN : More than 1.0/8
RANGE : "D" position
ENG SPEED : 450 rpm or more
Driving location : Driving the vehicle uphill (increased engine load) will help maintain the driving conditions required for this test.


Is "P1723 CVT SPD SEN/FNCTN" detected?
YES - Go to "Diagnosis Procedure".
NO - Check intermittent incident. Refer to Intermittent Incident.




Diagnosis Procedure
1. CHECK STEP MOTOR FUNCTION
Perform "Self Diagnostic Results" in "TRANSMISSION".
Is "P1778 STEP MOTR/FNC" detected?
YES - Repair or replace damaged parts. Refer to P1778.
NO - GO TO 2.
2. CHECK OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR) SYSTEM
Check output speed sensor (secondary speed sensor) system. Refer to P0720.
Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace damaged parts.
3. CHECK INPUT SPEED SENSOR (PRIMARY SPEED SENSOR) SYSTEM
Check input speed sensor (primary speed sensor) system. Refer to P0715.
Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace damaged parts.
4. CHECK ENGINE SPEED SIGNAL SYSTEM
Check engine speed signal system. Refer to P0725.
Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace damaged parts.
5. DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES - Replace TCM. Refer to Exploded View.
NO - Repair or replace damaged parts.