Operation CHARM: Car repair manuals for everyone.

A/T - A/T Initial Start Trouble Code

Classification:
AT96-007

Reference:
NTB96-084

Date:
August 21, 1996

OBD-II "A/T INITIAL START" TROUBLE CODE

This bulletin supersedes NTB94-080a (AT94-005a). Please discard NTB94-080a.

APPLIED VEHICLES:
All vehicles equipped with OBD-II and automatic transmission

SERVICE INFORMATION





"A/T INITIAL START" may appear when you access the self-diagnostic results in the A/T system using CONSULT (see Figure 1).

This message indicates that the self-diagnosis results of self-learning have not been memorized in the A/T control unit. This message is stored in the self-diagnosis memory of the A/T control unit whenever the following systems are disrupted:

^ The battery cable is disconnected or the battery is replaced

^ The power supply line is short circuited

^ The connector at the A/T control unit has poor contact

^ The fuse in the power supply circuit burns out

^ The connector from the A/T control unit is disconnected

^ The A/T control unit is replaced The battery runs down.

SERVICE PROCEDURE





Erase "A/T INITIAL START" from the self-diagnostic results using CONSULT (see Figure 2). An actual DTC would have replaced "Apr INITIAL START" if there had been an incident with the transmission after the power to the A/T control unit was interrupted. Therefore, it is not necessary to drive the vehicle after erasing the DTC.