DTC P0753[FS5A-EL]


id050221808300

DTC P0753

Shift solenoid A malfunction (electrical)

DETECTION CONDITION
•  If TCM detects either of the following conditions, TCM determines that shift solenoid A circuit has a malfunction.
―  Shift solenoid A voltage stuck at B+ after engine start
―  Shift solenoid A voltage stuck at 0 V after engine start
Diagnostic support note:
•  This is a continuous monitor (CCM).
•  The MIL illuminates if the TCM detects the above malfunction conditions during the first drive cycle.
•  The PENDING CODE is available if the TCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA is available.
•  The AT warning light illuminates.
•  The DTC is stored in the TCM memory.
POSSIBLE CAUSE
•  Shift solenoid A malfunction
•  Short to ground in wiring harness between transaxle connector (primary) terminal A and TCM terminal AG
•  Short to power supply in wiring harness between transaxle connector (primary) terminal A and TCM terminal AG
•  Open circuit in wiring harness between shift solenoid A terminal B and transaxle connector (primary) terminal A
•  Open circuit in wiring harness between transaxle connector (primary) terminal A and TCM terminal AG
•  Open circuit in wiring harness between shift solenoid A terminal A and body ground
•  Damaged connector between shift solenoid A and TCM
•  TCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has the FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
•  Verify related Service Bulletins and/or on-line repair information availability.
•  Is any related repair information available?
Yes
Perform repair or diagnosis according to the available repair information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
INSPECT TRANSAXLE CONNECTOR FOR POOR CONNECTION
•  Turn the ignition switch to the LOCK position.
•  Disconnect the transaxle connector (primary).
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is the connection normal?
Yes
Go to the next step.
No
Repair or replace the connector and/or terminals, then go to Step 11.
4
INSPECT RESISTANCE
•  Inspect the resistance between transaxle connector (primary) terminal A (transaxle case side) and body ground.
•  Is the resistance within 1.0—4.2 ohms?
Yes
Go to Step 7.
No
Go to the next step.
5
INSPECT SHIFT SOLENOID A CONNECTOR FOR POOR CONNECTION
•  Disconnect the shift solenoid A connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is the connection normal?
Yes
Go to the next step.
No
Repair or replace the connector and/or terminals, then go to Step 11.
6
INSPECT RESISTANCE
•  Inspect the resistance between shift solenoid A terminals A and B (part-side).
•  Is the resistance within 1.0—4.2 ohms?
Yes
Replace the solenoid wiring harness, then go to Step 11.
No
Verify shift solenoid A installation.
•  If solenoid installed correctly, replace the solenoid, then go to Step 11.
7
INSPECT TCM CONNECTOR FOR POOR CONNECTION
•  Disconnect the TCM connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is the connection normal?
Yes
Go to the next step.
No
Repair or replace the connector and/or terminals, then go to Step 11.
8
INSPECT TRANSAXLE CONNECTOR CIRCUIT FOR OPEN CIRCUIT
•  Inspect for continuity between TCM terminal AG (wiring harness-side) and transaxle connector (primary) terminal A (wiring harness-side).
•  Is there continuity between terminals?
Yes
Go to the next step.
No
Repair or replace the wiring harness, then go to Step 11.
9
INSPECT TRANSAXLE CONNECTOR CIRCUIT FOR SHORT TO POWER SUPPLY
•  Turn the ignition switch to the ON position (engine off).
•  Inspect the voltage at transaxle connector (primary) terminal A (wiring harness-side).
•  Is the voltage 0 V?
Yes
Go to the next step.
No
Repair or replace the wiring harness, then go to Step 11.
10
INSPECT TCM CIRCUIT FOR SHORT TO GROUND
•  Turn the ignition switch to the LOCK position.
•  Inspect for continuity between TCM terminal AG (wiring harness-side) and body ground.
•  Is there continuity?
Yes
Repair or replace the wiring harness, then go to Step 11.
No
Go to the next step.
11
VERIFY TROUBLESHOOTING OF DTC P0753 COMPLETED
•  Make sure to reconnect all the disconnected connectors.
•  Clear the DTC from the memory using the M-MDS.
•  Drive the vehicle in D range and make sure that the gears shift smoothly from 1GR to 4GR.
•  Are any DTCs present?
Yes
Replace the TCM, then go to the next step.
No
No concern is detected. Go to the next step.
12
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “After Repair Procedure”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
DTC troubleshooting completed.