Checking the SHIFT UP Indicator Light

SHIFT UP Indicator Light Diagnosis:

1 Connect an ISAT scan tool, contact the SFI system and enter command code 3044.


Check whether the lamp flashes (at a frequency of 1 Hz).


2 If it does not, switch off the ignition and connect a break-out box to the ECM wiring harness (ECM disconnected).


Turn the ignition switch to the Drive position and connect a jumper cable between terminals 55 and 24 of the break-out box.


If the lamp lights up, continue with point 4.

3 If the lamp does not light up, remove the main instrument display panel and with the ignition switch in the Drive position check whether battery voltage is present on terminal 5 of the SHIFT UP lamp (black connector on the right-hand side of the instrument).

If voltage is present, replace the instrument unit.

If it is not, check the +15 supply voltage lead.

4 If the fault persists in spite of the above checks, the ECM may be faulty. Review "Before Replacing ECM."

NOTE:
When command code 30XX has been used, the car cannot be started for the following 12 minutes. Use command code FF00 to clear the function, following which the car can be started.