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DTC P0735 [FS5A-EL]

id050221802300

DTC P0735 | Gear 5 incorrect (incorrect gear ratio detected)
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DETECTION CONDITION | • The TCM monitors revolution ratio of the secondary gear revolution to the differential gear case revolution when the following monitoring conditions are met. When any of the following conditions are met: - Revolution ratio of the secondary gear and the differential gear case is 1.11 or less when driving in 3GR or 4GR. - Revolution ratio of the secondary gear and differential gear case is 1.11 or more when driving in 5GR. Monitoring conditions: - Engine running - ATF temperature 20 °C {68 °F} or more - Throttle opening angle 4.14% or more - Secondary gear revolution speed 50 rpm or more - Turbine speed within 225-4,987 rpm - Vehicle speed 29 km/h {18 mph} or more - Differential gear case (output) revolution speed 35 rpm or more - None of the following DTCs are present: P0706, P0707, P0708, P0712, P0713, P0715, P0720, P0777, P0778, P0791, P2707, P2708, P2709 Diagnostic support note: • This is a continuous monitor (CCM). • The MIL does not illuminate. • The AT warning light illuminates if the TCM detects the above malfunction condition during the first drive cycle. • FREEZE FRAME DATA is not available. • A PENDING CODE is not available. • The DTC is stored in the TCM memory.
POSSIBLE CAUSE | • ATF level low • Deteriorated ATF • Shift solenoid F stuck • Pressure control solenoid B stuck • Line pressure low • Direct clutch slipping • Reduction brake slipping • Control valve stuck (Bypass or 4-5 shift valve) • Oil pump malfunction • TCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | 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.
No | Go to the next step.
2 | INSPECT ATF CONDITION • Inspect the ATF condition. (See Automatic Transaxle Fluid (ATF) Condition Inspection.) • Is it normal? | Yes | Go to the next step.
No | Replace the ATF, then go to Step 9.
3 | INSPECT ATF LEVEL • Start the engine. • Warm up the ATX. • Is the ATF level within the specification? (See Automatic Transaxle Fluid (ATF) Level Inspection.) | Yes | Go to the next step.
No | Add ATF to the specified level, then go to Step 9. (See Automatic Transaxle Fluid (ATF) Level Inspection.)
4 | INSPECT SHIFT SOLENOID F AND PRESSURE CONTROL SOLENOID B FOR CLICK SOUND • Perform operation inspection. (See SOLENOID VALVE INSPECTION (SECONDARY CONTROL VALVE BODY) [FS5A-EL].) • Verify the click sound of shift solenoid F and pressure control solenoid B when applying B+ to each transaxle terminal. • Was a click heard from solenoids? | Yes | Go to the next step.
No | Replace the solenoid where you could not hear click sound, then go to Step 9. (See SOLENOID VALVE REMOVAL/INSTALLATION (PRIMARY CONTROL VALVE BODY) [FS5A-EL].)
5 | INSPECT LINE PRESSURE • Start the engine. • Measure the line pressures. (See Line Pressure Test.) • Are the line pressures within the specifications? | Yes | Go to the next step.
No | All ranges: Replace the oil pump, then go to Step 9. Any ranges: Replace the secondary control valve body, then go to Step 8. (See SECONDARY CONTROL VALVE BODY REMOVAL [FS5A-EL].) (See SECONDARY CONTROL VALVE BODY INSTALLATION [FS5A-EL].)
6 | INSPECT STALL SPEED • Measure the stall speed in D range. (See Stall Test.) • Is the stall speed within the specification? | Yes | Go to the next step.
No | Replace the automatic transaxle, then go to Step 9. (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [FS5A-EL].)
7 | INSPECT FREQUENCY OF INTERMEDIATE SENSOR WHEN DRIVING VEHICLE • Turn the ignition switch to the LOCK position. • Connect the WDS or equivalent. • Start the engine. • Measure the frequency of intermediate sensor while driving vehicle under the following conditions: - Vehicle speed (VSS PID): 80 km/h {49 mph} - Drive in the D range, 4GR - Throttle opening angle (THOP PID): approx. 25% • Was the frequency of the intermediate sensor at approx. 4,800 Hz? | Yes | Go to the next step.
No | Replace the secondary control valve body, then go to the next step. (See SECONDARY CONTROL VALVE BODY REMOVAL [FS5A-EL].) (See SECONDARY CONTROL VALVE BODY INSTALLATION [FS5A-EL].)
8 | INSPECT FREQUENCY OF INTERMEDIATE 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: - Vehicle speed (VSS PID): 90 km/h {56 mph} - Drive in the D range, 5GR - Throttle opening angle (THOP PID): approx. 25% • Was the frequency of the input/turbine speed sensor at approx. 4,100 Hz? | Yes | Go to the next step.
No | Replace the secondary control valve body, then go to the next step. (See SECONDARY CONTROL VALVE BODY REMOVAL [FS5A-EL].) (See SECONDARY CONTROL VALVE BODY INSTALLATION [FS5A-EL].)
9 | VERIFY REPAIR OF DTC P0735 • 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: - ATF temperature (TFT PID): 20 °C {68 °F} or more - Drive in the D range, 5GR - Throttle opening angle (THOP PID): 4.14% or more • Are any DTCs present? | Yes | Replace the TCM, then go to the next step. (See TCM REMOVAL/INSTALLATION [FS5A-EL].)
No | Go to the next step.
10 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [FS5A-EL].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection.
No | DTC troubleshooting completed.