Displaying & Reading Trouble Codes

Overdrive Switch:

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

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

Connector ID:

TDCL

Connector ID:

CHECK CONNECTOR

- Connect terminals TE1 and E1 together at either the TDCL or Check Connector.

Overdrive Light:

- Read the diagnostic code as indicated by the number of times the O/D indicator 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.