I have problem with ultrasonic sensors. 2 digit code is 74. four digit code is 1002 (vehicle not is bay correctly, object in bay, fail or failing ultrasonic).
prior to activating a wash the is a blinking light at X input 1 ( correspond to L ultrasonic sensor). Normally this is solid light. when activating a wash, drive forward goes on the display and then when car stops for the buzzer the wash stay in this mode. The wash just stays in the blinking stop on the display . Arm does not move and does not start presoak. Stays in stop mode. I reset the machine ten times and one time it start the wash after stop on menu display for 30 second. During the wash arm run and hit left side on car and have to readjust. I then try wash again and stuck in stop mode on the menu display.
Does the blinking input 1 light corresponds to L wall ultrasonic? I thinking this is the problem but hate to pay $700 for the ultrasonic if it is something else. machine is 9 years old and never have wall ultrasonic failed yet. any help is appreciated. thanks ahead.
prior to activating a wash the is a blinking light at X input 1 ( correspond to L ultrasonic sensor). Normally this is solid light. when activating a wash, drive forward goes on the display and then when car stops for the buzzer the wash stay in this mode. The wash just stays in the blinking stop on the display . Arm does not move and does not start presoak. Stays in stop mode. I reset the machine ten times and one time it start the wash after stop on menu display for 30 second. During the wash arm run and hit left side on car and have to readjust. I then try wash again and stuck in stop mode on the menu display.
Does the blinking input 1 light corresponds to L wall ultrasonic? I thinking this is the problem but hate to pay $700 for the ultrasonic if it is something else. machine is 9 years old and never have wall ultrasonic failed yet. any help is appreciated. thanks ahead.
