DTC    P2767    Input / Turbine Speed Sensor "B" Circuit No Signal

for Preparation Click here


DESCRIPTION

The ECM detects the input shaft rotation speed based on the signal from the primary pulley speed sensor (transmission revolution sensor NIN) and performs gear ratio change control.

DTC No.
DTC Detection Condition
  1. Diagnosis Condition
  2. Malfunction Status
  3. Malfunction Time
  4. Other
Trouble Area
P2767
  1. Driving with shift lever in D, output shaft speed 300 rpm or more and vehicle speed approx. 7 km/h (4.3 mph)
  2. Transmission revolution sensor (NIN) value is less than 300 rpm
  3. 2 seconds
  4. 1-trip detection logic
  1. Open or short in transmission revolution sensor (NIN) circuit
  2. Transmission revolution sensor (NIN)
  3. ECM

MONITOR DESCRIPTION

The ECM receives a signal from the primary pulley speed sensor (transmission revolution sensor (NIN)) installed in the continuously variable transaxle and determines the input shaft speed in order to control the gear ratio. If the ECM detects no signal from the primary pulley speed sensor even while the vehicle is moving, it will conclude that there is a malfunction in the primary pulley speed sensor. The ECM will illuminate the MIL and set the DTC.

WIRING DIAGRAM


C195851E02


INSPECTION PROCEDURE

1.READ VALUE USING INTELLIGENT TESTER (SPD (NIN))

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the tester on.

  1. Enter the following menus: Powertrain / Engine and ECT / Data List.

  1. In accordance with the display on the tester, read the Data List.

    Tester Display
    		Measurement Item/
    Range (display)
    		Normal Condition
    		Diagnostic Note
    SPD (NIN)
    		Primary pulley speed (NIN)/
    Display: 50 rpm
    min.: 0 rpm
    max.: 12750 rpm
    1. Vehicle stopped: 0 rpm
    2. Lock-up ON (After warming up engine): Primary pulley speed (NIN) equal to engine speed
    		-
    Result 
    Result
    		Proceed to
    Data display is not within Normal Condition range
    		A
    Data display is within Normal Condition range
    		B



B
Go to step 4
A


2.INSPECT TRANSMISSION REVOLUTION SENSOR (NIN)


    C193940E01

  1. Remove the transmission revolution sensor (NIN) (Click here).

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 (NIN-) - 2 (NIN+)
    		20°C (68°F)
    		560 to 680 Ω

    Text in Illustration 
    *1
    		Component without wire harness connected:
    (Transmission Revolution Sensor (NIN))



NG
REPLACE TRANSMISSION REVOLUTION SENSOR (NIN) (Click here)
OK


3.CHECK HARNESS AND CONNECTOR (TRANSMISSION REVOLUTION SENSOR (NIN) - ECM)


    C193939E06

  1. Reconnect the transmission revolution sensor (NIN) connector.

  1. Disconnect the ECM connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    B8-122 (NIN+) - B8-100 (NIN-)
    		20°C (68°F)
    		560 to 680 Ω

    Text in Illustration 
    *1
    		Front view of wire harness connector:
    (to ECM)



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.REPLACE ECM

  1. Replace the ECM (Click here).


NEXT


5.PERFORM INITIALIZATION

  1. Perform the initialization (Click here).

  1. Check for DTCs again (Click here).


NEXT

END