- Make any repairs that are necessary to correct the operation of
electric shift system. After making repairs, clear the TCCM memory and perform
the functional test in order to ensure the electric shift system operates
properly.
Important: Perform a TCCM diagnostic test in order to ensure the TCCM is operating
properly before performing the functional test.
- If DTC 4 is stored in the TCCM memory, replace the TCCM.
- Use the following as information that may help you understand
some of the terminology used in the diagnostic tables:
| • | The ignition switch to the RUN position. |
| • | Position the ignition switch from OFF to RUN but do not start the engine. |
| • | The ground source refers to any exposed metal surface on the vehicle
connected directly or indirectly to the negative terminal of the battery. |
| • | The shift select refers to the selector that positions or shifts
the automatic transmission or the transfer case. |
| • | The blinking refers to flashing light passing through the red
plastic shift select buttons. |
| • | Shift the transfer case refers to pressing one of the three shift
select buttons to shift the transfer case into either 2HI, 4HI, or 4LO. |
