#
DTC P0753 [FN4A-EL]

id0502a1808300

DTC P0753 | Shift solenoid A malfunction (electrical)
--- | ---
DETECTION CONDITION | • If PCM detects either of following conditions, PCM determines that shift solenoid A circuit has a malfunction: - Shift solenoid A voltage is stuck at B+ after engine start. - Shift solenoid A voltage is stuck at 0 V after engine start. Diagnostic support note: • This is a continuous monitor (CCM). • MIL illuminates if PCM detects the above malfunction conditions during first drive cycle. • PENDING CODE is not available. • FREEZE FRAME DATA is available. • HOLD indicator light flashes. • DTC is stored in the PCM memory.
POSSIBLE CAUSE | • Shift solenoid A malfunction • Short to ground between ATX connector terminal A and PCM terminal 1AZ • Short to power between ATX connector terminal A and PCM terminal 1AZ • Open circuit between shift solenoid A terminal B and ATX connector terminal A • Open circuit between ATX connector terminal A and PCM terminal 1AZ • 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
--- | --- | ---
1 | VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has FREEZE FRAME PID DATA been recorded? | Yes | Go to next step.
No | Record FREEZE FRAME PID DATA on repair order, then go to next step.
2 | VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Check for related Service Bulletins availability. • Is any related repair information available? | Yes | Perform repair or diagnosis according to available repair information. • If vehicle is not repaired, go to next step.
No | Go to next step.
3 | INSPECT ATX CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect ATX connector. • Check for poor connection (damaged/pulled-out terminals, corrosion, etc.). • Is connection normal? | Yes | Go to next step.
No | Repair or replace connector and/or terminals, then go to Step 11.
4 | INSPECT RESISTANCE • Check resistance between ATX connector terminal A (transaxle case side) and body ground. • Is resistance within 1.0-4.2 ohms? (See Resistance Inspection (On-Vehicle Inspection).) | Yes | Go to Step 7.
No | Go to next step.
5 | INSPECT SHIFT SOLENOID A CONNECTOR FOR POOR CONNECTION • Disconnect shift solenoid A connector. • Check for poor connection (damaged/pulled-out terminals, corrosion, etc.). • Is connection normal? | Yes | Go to next step.
No | Repair or replace connector and/or terminal, then go to Step 11.
6 | INSPECT RESISTANCE • Inspect resistance between shift solenoid A terminals A and B (part-side). • Is resistance within 1.0-4.2 ohms? (See Resistance Inspection (Off-Vehicle Inspection).) | Yes | Replace solenoid harness, then go to Step 11.
No | Verify shift solenoid A installation. • If solenoid is installed correctly, replace solenoid, then go to Step 11. (See SOLENOID VALVE REMOVAL/INSTALLATION [FN4A-EL].)
7 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Disconnect PCM connector. • Check for poor connection (damaged/pulled-out terminals, corrosion, etc.). • Is connection normal? | Yes | Go to next step.
No | Repair or replace connector and/or terminals, then go to Step 11.
8 | INSPECT ATX CONNECTOR CIRCUIT FOR OPEN • Inspect for continuity between PCM terminal 1AZ (harness-side) and ATX connector terminal A (vehicle harness-side). • Is there continuity between terminals? | Yes | Go to next step.
No | Repair or replace 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 voltage at ATX connector terminal A (vehicle harness-side). • Is voltage 0 V? | Yes | Go to next step.
No | Repair or replace harness, then go to Step 11.
10 | INSPECT PCM CIRCUIT FOR SHORT TO GROUND • Turn the ignition switch off. • Inspect for continuity between PCM terminal 1AZ (harness-side) and body ground. • Is there continuity? | Yes | Repair or replace harness, then go to Step 11.
No | Go to next step.
11 | VERIFY TROUBLESHOOTING OF DTC P0753 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear DTC from memory using WDS or equivalent. • Drive vehicle in D range and make sure that gears shift smoothly from 1GR to 4GR. • Are any DTCs present? | Yes | Replace PCM, then go to next step. (See PCM REMOVAL/INSTALLATION.)
No | No concern is detected. Go to next step.
12 | VERIFY AFTER REPAIR PROCEDURE • Perform "After Repair Procedure". (See AFTER REPAIR PROCEDURE [FN4A-EL].) • Are any DTCs present? | Yes | Go to applicable DTC inspection.
No | Troubleshooting completed.