Page 129 of 3051
Wiring Diagram Ð AT Ð VSSA/TNLAT0252MODELS WITH ECM IN ENGINE COMPARTMENTNLAT0252S01
YAT177
VEHICLE SPEED SENSOR CVT
(SECONDARY SPEED SENSOR)
EXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð VSSA/T
AT-128
Page 130 of 3051
MODELS WITH ECM IN CABINNLAT0252S02
YAT216
VEHICLE SPEED SENSOR CVT
(SECONDARY SPEED SENSOR)
EXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð VSSA/T (Cont'd)
AT-129
Page 131 of 3051
Diagnostic ProcedureNLAT0253
1 CHECK INPUT SIGNAL (With CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select ªTCM INPUT SIGNALSº in ªDATA MONITORº mode for ªCVTº with CONSULT-II.
SAT250K
3. Read out the value of ªVEHICLE SPEEDº while driving.
Check the value changes according to driving speed.
SAT236K
OK or NG
OK©GO TO 3.
NG©GO TO 2.
2 CHECK SECONDARY SPEED SENSOR (With CONSULT-II)
With CONSULT-II
1. Start engine.
MTBL0550
+Harness for short or open between TCM and secondary speed sensor (Main harness)
OK or NG
OK©GO TO 3.
NG©Repair or replace damaged parts.
VEHICLE SPEED SENSOR CVT
(SECONDARY SPEED SENSOR)
EXCEPT FOR EURO-OBD
Diagnostic Procedure
AT-130
Page 132 of 3051
3 CHECK DTC
Perform Self-diagnosis Code confirmation procedure, AT-127.
OK or NG
OK©INSPECTION END
NG©GO TO 4.
4 CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK©INSPECTION END
NG©Repair or replace damaged parts.
VEHICLE SPEED SENSOR CVT
(SECONDARY SPEED SENSOR)
EXCEPT FOR EURO-OBD
Diagnostic Procedure (Cont'd)
AT-131
Page 133 of 3051
DescriptionNLAT0254The primary speed sensor detects the primary pulley revolution
speed and sends a signal to the ECM.
TCM TERMINALS AND REFERENCE VALUENLAT0254S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard (Approx.)
38 G/YPrimary speed
sensor
+When driving at 20 km/h (12
MPH) with ªLº position, use the
CONSULT-II pulse frequency
measuring function*.
CAUTION:
Connect the diagnosis data
link cable to the vehicle diag-
nosis connector.
*: A circuit tester cannot be used
to test this item.900 Hz
ON BOARD DIAGNOSIS LOGICNLAT0254S02
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: I/P PULLY SPD
TCM does not receive the proper voltage
signal from the sensor.+Harness or connectors
(The sensor circuit is open or shorted.)
+Vehicle speed sensor
: 2nd judgement flicker
PRIMARY SPEED SENSOREXCEPT FOR EURO-OBD
Description
AT-132
Page 134 of 3051
SAT250K
SAT807HA
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURENLAT0254S03After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-IINLAT0254S03011) Start engine.
2) Select ªSELF-DIAG RESULTSº mode for CVT with CONSULT-
II.
3) Drive vehicle under the following conditions:
Selector lever in ªDº position and vehicle speed higher than 20
km/h (12 MPH).
Without CONSULT-IINLAT0254S03021) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº position and vehicle speed higher than 20
km/h (12 MPH).
3) Perform self-diagnosis.
Refer to ªSELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-35.
PRIMARY SPEED SENSOREXCEPT FOR EURO-OBD
Description (Cont'd)
AT-133
Page 135 of 3051
Wiring Diagram Ð AT Ð VSSMTRNLAT0255MODELS WITH ECM IN ENGINE COMPARTMENTNLAT0255S01
YAT176
PRIMARY SPEED SENSOREXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð VSSMTR
AT-134
Page 136 of 3051
MODELS WITH ECM IN CABINNLAT0255S02
YAT215
PRIMARY SPEED SENSOREXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð VSSMTR (Cont'd)
AT-135