Information

1. Review customer concern.

2. Retrieve any DTCs stored in memory.

- If DTC P1783 is present or customer complaint closely matches description above, proceed to External ATF Cooler Kit Installation procedure in this bulletin.

- If OD OFF light is flashing with a DTC other than P1783, or the customer complaint does not match description above, continue diagnosing concern according to Workshop Manual (section 05-02A).

NOTE:
The OD OFF light (indicating DTC P1783) will no longer flash after the first key cycle, when the ATF temperature has dropped below the 135 degree C (275 F) level, which triggered the DTC.