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DTC P0753 [FN4A-EL]

BME050201030221

DTC P0753 | Shift solenoid A malfunction (electrical)
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DETECTION CONDITION | • If the PCM detects either of the following conditions, the PCM determines that shift solenoid A circuit has a malfunction:

  - Shift solenoid A voltage remains B+ after engine start.
  - Shift solenoid A voltage remains 0 V after engine start.

Diagnostic support note:
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction conditions during the first drive cycle.
• A PENDING CODE is not available.
• FREEZE FRAME DATA is available.
• The HOLD indicator light flashes.
• The DTC is stored in the PCM memory.
POSSIBLE CAUSE | • Shift solenoid A malfunction • Short to ground between ATX terminal A and PCM terminal 4AB • Short to power supply between ATX terminal A and PCM terminal 4AB • Open circuit between shift solenoid A terminal B and ATX terminal A • Open circuit between ATX terminal A and PCM terminal 4AB
• Open circuit between shift solenoid A terminal A and body ground point
• Damaged connector between shift solenoid A and PCM
• PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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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 ATX CONNECTOR FOR POOR CONNECTION • Turn the ignition switch to the LOCK position. • Disconnect the ATX 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.
4 | INSPECT RESISTANCE • Inspect the resistance between ATX (transaxle case side) terminal A and body ground. • Is the resistance within 1.0-4.2 ohms? (See Resistance Inspection (On-Vehicle Inspection).) | 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 terminal, then go to Step 11.
6 | INSPECT RESISTANCE • Inspect the resistance between shift solenoid A (part-side) terminals A and B. • Is the resistance within 1.0-4.2 ohms? (See Resistance Inspection (Off-Vehicle Inspection).) | Yes | Replace the solenoid wiring harness, then go to Step 11.
No | Verify the shift solenoid A installation. • If the solenoid is installed correctly, replace the solenoid, then go to Step 11. (See SOLENOID VALVE REMOVAL/INSTALLATION [FN4A-EL].)
7 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Disconnect the PCM 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 ATX CONNECTOR CIRCUIT FOR OPEN • Inspect for continuity between PCM terminal (wiring harness-side) 4AB and ATX (vehicle wiring harness-side) terminal A. • Is there continuity between the terminals? | Yes | Go to the next step.
No | Repair or replace the wiring harness, then go to Step 11.
9 | INSPECT ATX CONNECTOR CIRCUIT FOR SHORT TO POWER • Turn the ignition switch to the ON position (engine off). • Inspect the voltage at ATX (vehicle wiring harness-side) terminal A. • 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 PCM CIRCUIT FOR SHORT TO GROUND • Turn the ignition switch to the LOCK position. • Inspect for continuity between PCM (wiring harness-side) terminal 4AB 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 WDS or equivalent. • Drive the vehicle in D range and make sure that gears shift smoothly from 1GR to 4GR.
• Are any DTCs present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [L3].)
No | No concern is detected. Go to the next step.
12 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [FN4A-EL].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [FN4A-EL].)
No | DTC troubleshooting completed.