When replacing the TCM, perform the following work.
CHECK LOADING OF CALIBRATION DATA
CALIBRATION OF G SENSOR
CAUTION: When replacing TCM and transaxle assembly as a set, replace transaxle assembly first and then replace TCM.
If the TCM is replaced in advance, perform "ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY" after "G sensor calibration".
1.CHECK WORK CONTENTS
Replacing only the TCM>>GO TO 2.
Replacing the TCM after the transaxle assembly is replaced>>GO TO 2.
Replacing the transaxle assembly after the TCM is replaced>>GO TO 5.
2.LOADING OF CALIBRATION DATA
NOTE: Displayed approximately 4 - 5 seconds after the selector lever is moved to the "P" position.
Does the shift position indicator display "P"?
YES >> GO TO 3.
NO >> GO TO 4.
3.PERFORM G SENSOR CALIBRATION
Refer to TM "Work Procedure".
>> WORK END
4.DETECT MALFUNCTIONING ITEM
Check the following items:
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
5.PERFORM G SENSOR CALIBRATION
Refer to TM "Work Procedure".
>> Perform "ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY" after "CALIBRATION OF G SENSOR". Refer to TM "Work Procedure".
Engine control system symptoms
Symptom Table
SYSTEM - BASIC ENGINE CONTROL SYSTEM
1 - 6: The numbers refer to the order of inspection.
(continued on next table)
SYSTEM - ENGINE MECHANICAL & OTHER
1 - 6: The numbers refer to the order of inspection. ...
P073F Unable to engage 1GR
Description
This malfunction is detected when the A/T does not shift into 1GR position as
instructed by TCM. This is not
only caused by electrical malfunction (circuits open or shorted) but by
mechanical malfunction such as control
valve sticking, improper solenoid valve operation, etc.
DTC ...