DTC P0734 [FN4A-EL]
B3E050219090W17
Diagnostic procedure
STEP
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INSPECTION
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ACTION
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1
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VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Verify related Service Bulletins and/or on-line repair information availability.
• Is any related repair information available?
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Yes
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Perform repair or diagnosis according to the available repair information.
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No
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Go to the next step.
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2
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INSPECT ATF CONDITION
• Inspect the ATF condition.
• Is it normal?
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Yes
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Go to the next step.
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No
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Replace the transaxle, then go to Step 8.
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3
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INSPECT ATF LEVEL
• Start the engine.
• Warm up the ATX.
• Is the ATF level within the specification?
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Yes
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Go to the next step.
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No
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Add ATF to the specified level, then go to Step 8.
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4
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INSPECT SHIFT SOLENOID VALVE A AND D FOR CLICK SOUND
• Perform operation inspection.
(See SOLENOID VALVE INSPECTION.)
• Verify the click sound of shift solenoids A and D when applying B+ to each transaxle terminal.
• Was a click heard from solenoids?
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Yes
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Go to the next step.
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No
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Replace the solenoid where you could not hear click sound, then go to Step 8.
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5
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INSPECT LINE PRESSURE
• Start the engine.
• Measure the line pressures.
Specification Idle: 330-470 kPa {3.4-4.7 kgf/cm2, 48-68 psi} Stall: 1,090-1,250 kPa {11.2-12.7 kgf/cm2, 159-181 psi} (Z6) 1,160-1,320 kPa {11.8-13.5 kgf/cm2, 168-191 psi} (LF)
• Are the line pressures within the specifications?
(See Line Pressure Test.)
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Yes
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Go to the next step.
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No
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All ranges: Replace the oil pump, then go to Step 8.
Any ranges: Replace the control valve body, then go to Step 8. (See CONTROL VALVE BODY REMOVAL.)
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6
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INSPECT STALL SPEED
• Measure the stall speed in D range.
(See Stall Test.)
Specification 2,100-2,700 rpm (Z6) 2,000-2,600 rpm (LF)
• Is the stall speed within the specification?
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Yes
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Go to the next step.
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No
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Replace the automatic transaxle, then go to Step 8.
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7
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INSPECT FREQUENCY OF INPUT/TURBINE SPEED SENSOR WHEN DRIVING VEHICLE
• Turn the ignition switch to the LOCK position.
• Connect the WDS or equivalent.
• Start the engine.
• Measure the frequency of input/turbine speed sensor while driving vehicle under the following conditions:
• Was the frequency of the input/turbine speed sensor at approx. 1,200 Hz?
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Yes
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Go to the next step.
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No
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Replace the control valve body, then go to the next step.
(See CONTROL VALVE BODY REMOVAL.)
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8
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VERIFY REPAIR OF DTC P0732
• Make sure to reconnect all the disconnected connectors.
• Clear the DTC using the WDS or equivalent.
• Start the engine.
• Warm up the transaxle.
• Drive the vehicle under the following conditions for more than 5 s:
• Are any DTCs present?
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Yes
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Replace the PCM, then go to the next step.
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No
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Go to the next step.
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9
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VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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DTC troubleshooting completed.
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