Displaying & Reading Trouble Codes

Self-Diagnosis Checker




1. Connect the special service tool SST (System Selector) to the data link connector.
2. Set the SYSTEM SELECT switch A to position 2.
3. Set the TEST SW to SELF TEST position.




4. Connect the SST (Self-Diagnosis Checker) to the SST (System Selector) and a ground.
5. Set the SELECT SW to position A.
6. Turn the ignition switch ON.




7. Verify that "88" flashes on the digital display and that the buzzer sounds for 3 seconds.
8. If "88" does not flash, check the main relay and terminals 1N and/or 1P of the powertrain control module (transmission) for an open or short circuit.
9. If "88" flashes and the buzzer sounds continuously for more than 20 seconds, check the wiring to terminal 2N of the powertrain control module (transmission) for an open or short circuit.
If necessary, replace the powertrain control module (transmission) and repeat from step 2.
10. Note any code(s) and check for the cause(s). Repair as necessary.
11. After repairs are made, do the After-Repair Procedure to verify that there are no remaining codes.

NOTE: If there is more than one malfunction, the codes will be indicated in numerical order, lowest number first.




Diagnostic Trouble Code Display Pattern Example