With Generic Scan Tool

Data Link Connector:

DIAGNOSTIC CODE INTERPRETATION

The Transmission Control Unit monitors operation of the transmission control system. Some components are monitored continuously, others only during specified operating conditions. When the TCU detects a malfunction lasting longer than a specified period of time the TCU will generate an error code that can be detected at the diagnostic connector.


If multiple malfunctions occur the diagnostic codes will be sent sequentially beginning with the lowest number code in ascending order with a 2 second pause between each code. A maximum of up to 10 fault codes can be stored in the control unit's memory and the same fault code can be stored as many as three times. If the number of stored codes exceeds 10, previously stored codes will be erased, beginning with the oldest code.

If the fail safe system is activated and the transaxle is locked in 3rd gear, a fault code from the fail safe code chart will be stored. Cancellation will occur if, with the transaxle locked in 3rd gear, the ignition key is turned to the OFF position, the code is stored until cleared.









READING DIAGNOSTIC CODES

1. Connect scan tool connector to the data link connector and the power source terminal to the cigarette lighter socket.

2. Set the ignition switch to "ON".

3. Note the codes displayed on the scan tool.

4. Refer to the diagnostic codes chart to determine which device is causing the malfunction code.

5. Test and repair the offending components as necessary.

6. Clear the malfunction codes by disconnecting the vehicle battery negative terminal for ten seconds or longer.

7. Road test the vehicle and recheck for newly stored diagnostic codes.

8. After the cause of a failure code has been detected and corrected the diagnostic code memory of the TCU should be cleared by disconnecting the vehicle battery for 10 seconds or more.