Diagnostic Code Output
- To obtain an output of diagnostic codes, ensure battery voltage is above 11 volts, throttle valve is fully closed, transmission is in "P" or "N" positions, all accessory switches are in OFF position, and engine is at normal operating temperature.
- Turn ignition switch to ON position. DO NOT start engine. Using a sub-wire, short terminals "T" - "E1" of check connector. See Figure.
- Read diagnosis code as indicated by number of flashes of CHECK ENGINE lamp. See Fig 1. Refer to TCCS TROUBLE CODE IDENTIFICATION table for diagnosis codes.
- The CHECK ENGINE lamp will blink a number of times equal to the malfunction code indication with a 2.5 second delay between each indication. The diagnostic code series will be repeated as long as check connector terminals "T" - "E1" are shorted.
NOTE:
In the event a number of trouble codes are to be identified, indication will begin from the smaller value and continue to the larger in order.