Trouble Code 2 (Program Button)
PROGRAM BUTTONExplanation
This defect code is stored when two or three of the wires to the control unit Pin 2 (E-program), 31 (M-program), 34 (S-program) are applied simultaneously to ground. Consequently, program switchover is not possible.
Effect of Defect
The control unit sets the E-program.
Possible Cause
Wires from program button to Electronic Transmission Control (EGS) control unit defective or program button defective.
Troubleshooting
Perform status monitoring (Program Button). Press program button and compare with tester display. When the button is not depressed, all displays on the tester must indicate "open" and when depressed "ground" must be detected.