Circuit Description

Shifting is performed in combination with ON and OFF position of shift solenoids controlled by ECT ECU. If an open or short circuit occurs in either shift solenoid, ECT ECU reverts to fail-safe mode. See Figure. DTCs are set when a open or short circuit occurs. Possible causes are:

• No. 1 and/or No. 2 solenoid circuit.
• No. 1 and/or No. 2 solenoid.
• ECT ECU malfunction.