P2764

K41B CVT: CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: P2763, P2764: Torque Converter Clutch Pressure Control Solenoid Control Circuit High (Shift Solenoid Valve DSU)
P2764 - Torque Converter Clutch Pressure Control Solenoid Control Circuit Low (Shift Solenoid Valve DSU)

DESCRIPTION

The ECM controls the signal to the lock-up engagement solenoid DSU and performs lock-up clutch pressure control in response to the input torque value.





MONITOR DESCRIPTION

This DTC indicates an open or short in the lock-up engagement solenoid DSU circuit. The ECM controls the gearshift by turning the lock-up engagement solenoid DSU (on/off). When there is an open or short circuit in engagement solenoid valve circuit, the ECM detects the problem, illuminates the MIL and stores the DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS

All





P2763:

All of the following conditions are met:





P2764:

All of the following conditions are met:





TYPICAL MALFUNCTION THRESHOLDS

P2763:

All of the following conditions are met:





P2764:

All of the following conditions are met:





COMPONENT OPERATING RANGE

P2763:

All of the following conditions are met:





P2764:

All of the following conditions are met:





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
Perform the universal trip to clear permanent DTCs Reading and Clearing Diagnostic Trouble Codes.

PROCEDURE

1. INSPECT CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY (ECM INPUT SOLENOID RESISTANCE)

(a) Disconnect the ECM connector.





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

Standard Resistance:





Text in Illustration





NG -- CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)
OK -- Continue to next step.

2. REPLACE ECM P0705

NEXT -- Continue to next step.

3. PERFORM INITIALIZATION P0705

NEXT -- END

4. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)

(a) Disconnect the transmission wire connector from the transaxle.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

5. REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY P0711

NEXT -- Continue to next step.

6. PERFORM INITIALIZATION P0705

NEXT -- END