DTC P0751

Shift solenoid A malfunction (stuck off)

DETECTION CONDITION

• TCM detects that shift solenoid A does not change from off when engine is running

Diagnostic support note:

• MIL illuminates if TCM detects the above malfunction conditions in two consecutive drive cycles.

• PENDING CODE is available.

• FREEZE FRAME DATA is available.

• The AT warning light illuminates.

• DTC is stored in TCM memory.

POSSIBLE CAUSE

• ATF level low

• Deteriorated ATF

• Line pressure low

• Shift solenoid A stuck off

• Control valve body malfunction

• TCM malfunction

STEP

INSPECTION

ACTION

1

• Has 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 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

• Turn the ignition switch to the ON position (engine off).

• Inspect for DTCs.

• Are any other DTCs output?

Yes

Follow the applicable DTC inspection procedure, then go to the next step. (See DTC TABLE [SJ6A-EL].)

No

Go to the next step.

4

• Turn the ignition switch to the LOCK position.

• Inspect ATF condition.

• Transparent red: Normal

• Milky: Water mixed in fluid

• Reddish brown: Deteriorated ATF

• Is it normal?

  (See AUTOMATIC TRANSMISSION FLUID (ATF) INSPECTION[SJ6A-EL].)

Yes

Go to the next step.

No

If the ATF color milky or reddish brown, repair or replace AT, then go to Step 7.

5

INSPECT ATF LEVEL

• Start the engine.

• Warm up the AT.

• Is the ATF level within the specification?

  (See AUTOMATIC TRANSMISSION FLUID (ATF) LEVEL ADJUSTMENT [SJ6A-EL].)

Yes

Go to the next step.

No

Add ATF to the specified level, then go to Step 7.

(See AUTOMATIC TRANSMISSION FLUID (ATF) LEVEL ADJUSTMENT [SJ6A-EL].)

6

INSPECT LINE PRESSURE

• Start the engine.

• Measure the line pressure.

  (See MECHANICAL SYSTEM TEST[SJ6A-EL].)

• Are the line pressures within the specifications?

Yes

Go to the next step.

No

• All ranges: Replace the oil pump or control valve body, then go to the next step.

• Any ranges: Replace the AT, then go the next step.

  (See AUTOMATIC TRANSMISSION REMOVAL/INSTALLATION [SJ6A-EL].)

7

• Make sure to reconnect all disconnected connectors.

• Clear the DTC from the TCM memory using the M-MDS.

• Start the engine.

• Warm up AT.

• Drive the vehicle in D range and make sure that the gears shift smoothly from 1GR to 6GR.

• Is PENDING CODE for this the DTC present?

Yes

Replace the TCM, then go to the next step.

(See TCM REMOVAL/INSTALLATION [SJ6A-EL].)

No

Go to the next step.

8

• Perform the “After Repair Procedure”.

  (See AFTER REPAIR PROCEDURE [SJ6A-EL].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [SJ6A-EL].)

No

DTC troubleshooting completed.