Displaying & Reading Trouble Codes

CHECK "O/D OFF" INDICATOR LIGHT
1. Turn the ignition switch ON.
2. The "O/D OFF" light will come on when the O/D switch is placed at OFF.
3. When the O/D switch is set to ON, the "O/D OFF" light should go out.
If the "O/D OFF" light flashes when the O/D switch is set to ON, the electronic control system is faulty.




HOW TO READ DIAGNOSTIC TROUBLE CODE
1. Turn ignition switch and O/D switch to ON. Do not start the engine.

HINT: Warning and diagnostic trouble code can be read only when the overdrive switch is ON. If OFF, the overdrive OFF light will light continuously and will not blink.




2. Using SST 09843-18020 or equivalent, connect terminals TE1 and E1 of the date link connector.




3. Read the diagnostic trouble code as indicated by the number of times the O/D OFF light flashes.




Diagnostic Trouble Code Indication
- If the system is operating normally, the light will flash 2 times par second.
- In the event of a malfunction, the light will flash 1 time per second.
- The number of blinks will equal the first number and, after 1.5 seconds pause, the second number of the two digit diagnostic trouble code.
- If there are two or more codes, there will be a 2.5 seconds pause between each.

HINT: In the event of several trouble codes occurring simultaneously, indication will began from the smaller value and continue to the larger.

4. Remove SST 09843-18020 or equivalent.




DIAGNOSTIC TROUBLE CODES

HINTS:
- If codes 62, 63, or 64 appear, there is an electrical malfunction in the solenoid. Causes due to mechanical failure, such as a stuck valve, will not appear.

- If diagnostic trouble code Nos. 42, 61, 62 or 63 are output, the overdrive OFF indicator light will begin to blink immediately to warn the driver.
However, an impact or shock may cause the blinking to stop; but the code will still be retained in the ECM memory until canceled out.

- There is no warning for diagnostic trouble code No. 64.

- In the event of a simultaneous malfunction of both No. 1 and No. 2 vehicle speed sensors, no diagnostic code will appear and the fail-safe system will not function.
However, when driving in the D position, the transmission will not up-shift from first gear, regardless of the vehicle speed.