Circuit Description

ECM uses signal from vehicle speed sensor and OD direct clutch speed sensor to determine actual gear position. ECM compares actual gear with shift schedule in ECM memory to detect mechanical trouble of solenoids and/or valve body. DTC is set if during normal driving, gear required by ECM does not match actual gear after 2 trips have been completed. Possible cause:

• No. 1, No. 2 and/or No. 3 solenoid is stuck open or closed.
• Valve body is clogged or valve(s) is stuck.