Displaying & Reading Trouble Codes

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

Overdrive Switch:

- Turn on the ignition switch. Do not start the engine.
- Turn on the O/D switch.

Jumper Installation:

- Using a jumper wire, connect TDCL terminals TE1 and E1.
- Read the diagnostic code as indicated by the number of times the O/D light flashes.

Normal Indication:

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

Malfunction Indication:

- 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 code. If there are two or more codes, there will be a 2.5 seconds pause between each. Indication will begin from the smaller value and continue to the larger.