DTC P0758 Shift Solenoid "B" Electrical

WARNING: This page is about a different variant/trim than selected.

DTC DETECTING CONDITION:

Output signal circuit of input clutch solenoid is open or shorted.

TROUBLE SYMPTOM:

Locked to 4th gear.

WIRING DIAGRAM:

Fig 1: TCM And Transmission - Wiring Diagram

RESISTANCE CHART

Step	Check	Yes	No
1 CHECK HARNESS CONNECTOR BETWEEN TCM AND TRANSMISSION. Turn the ignition switch to OFF. Disconnect the connectors from TCM and transmission. Measure the resistance of harness between TCM and transmission connector. Connector & terminal (B54) No. 18 - (B11) No. 18: (B54) No. 5 - Chassis ground: (B54) No. 14 - Chassis ground:	Is the resistance less than 1 Ω?	Go to step 2.	Repair the open circuit of harness between TCM and transmission connector.
2 CHECK HARNESS CONNECTOR BETWEEN TCM AND BODY HARNESS. Measure the resistance of harness between TCM connector and body harness. Connector & terminal (B54) No. 18 - Chassis ground:	Is the resistance more than 1 MΩ?	Go to step 3.	Repair the short circuit of harness between TCM and transmission connector.
3 CHECK HARNESS CONNECTOR BETWEEN TRANSMISSION AND CONTROL VALVE BODY. Turn the ignition switch to OFF. Disconnect the connector from transmission. Remove the transmission connector from bracket. Lift up the vehicle and place it on rigid racks. NOTE: Raise all wheels off floor. Drain the ATF. CAUTION: Do not drain ATF until it cools down. Remove the oil pan, and disconnect the control valve body connector. Measure the resistance between transmission connector and control valve body connector. Connector & terminal (T4) No. 18 - (T16) No. 8:	Is the resistance less than 1 Ω?	Go to step 4.	Repair the open circuit of harness between transmission connector and control valve body connector.
4 CHECK HARNESS CONNECTOR BETWEEN TRANSMISSION AND CONTROL VALVE BODY. Measure the resistance between chassis ground and control valve body connector. Connector & terminal (T16) No. 8 - Chassis ground:	Is the resistance more than 1 MΩ?	Go to step 5.	Repair the short circuit of harness between transmission connector and control valve body connector.
5 CHECK INPUT CLUTCH SOLENOID. Measure the resistance between transmission ground and control valve body connector. Connector & terminal (T16) No. 8 - Transmission ground:	Is the resistance between 3 - 9Ω?	Go to step 6.	Replace the control valve body. < Ref. to CONTROL VALVE BODY . >
6 CHECK POOR CONTACT. Check that there are no poor contact in TCM connector, transmission connector and control valve body connector.	Is there any loosing terminal, entering foreign matter, damaging connector body?	Repair the poor contact.	Go to step 7.
7 CHECK AFTER REPAIR. Perform the Clear Memory Mode. Drive for a while, read the DTC, and check that there is no faulty.	Is DTC displayed?	Replace the TCM. < Ref. to TRANSMISSION CONTROL MODULE (TCM) . >	Temporary poor contact or open circuit occurs. Recheck that the harness connector has no faulty.