Displaying & Reading Trouble Codes

The electronically controlled transmission has built-in self-diagnostic functions. If a malfunction occurs in the system, the ECM stores the diagnostic trouble code (DTC) in memory and the "O/D OFF" (Overdrive OFF) indicator light blinks to inform the driver.
The diagnostic trouble code stored in memory can be read out using the following procedure.

"O/D OFF" INDICATOR LIGHT INSPECTION



1. Turn the ignition switch ON.



2. Check if the "O/D OFF" indicator light lights up when the O/D main switch is pushed out to OFF and goes OFF when the O/D main switch is pushed in to ON.
- If the "O/D OFF" indicator light does not work as described, carry out the check for "O/D Main Switch & "O/D OFF" Indicator Light Circuit" under the Non-Trouble Code Charts.
Testing and Inspection


OUTPUT OF DIAGNOSTIC TROUBLE CODES
1. Turn the ignition switch ON, but DO NOT START THE ENGINE.
2. Push the O/D main switch to ON (IN).
HINT: Warning and diagnostic trouble codes can be read only when the O/D main switch is ON. If it is OFF, the "O/D OFF" indicator light up will light continuously and will not blink.




3. Using a jumper wire (or SST 09843-18020), connect terminals TE1 and E1 of the DLC 1 or DLC2.
4. Read the diagnostic trouble code indicated by the number of times the "O/D OFF" indicator light blinks.



HINT: If the system is operating normally, the light will blink 2 times per second.

The trouble code is indicated, as shown in the illustration below (Diagnostic trouble code "42" is shown as an example).




HINT: When 2 or more trouble codes are stored in memory, the lower-numbered code is displayed first. If no diagnostic trouble code is output, or if a diagnostic trouble code is output even though no diagnostic trouble code output operation is performed, go to "TE1 Terminal Circuit" under the Non-Trouble Code Charts.
Testing and Inspection