P0755

DTC P0755 SHIFT CONTROL SOLENOID VALVE B CIRCUIT MALFUNCTION





COMPONENT LOCATION

GENERAL DESCRIPTION
The Automatic Transmission changes the gear position of the transmission by utilizing a combination of Clutches and Brakes, which are controlled by solenoid valves. The HIVEC Automatic Transmission consists of a: LR (Low and Reverse Brake), 2ND (2nd Brake), UD (Under Drive Clutch), OD (Over Drive Clutch), REV (Reverse Clutch), and a RED (Reduction Brake, only for 5 speed transmissions). The LR Brake is engaged in the 1st gear and reverse gear positions.

DTC DESCRIPTION
Refer to DTC P0750. P0750

DTC DETECTING CONDITION





[2.0L]





[2.7L]

SPECIFICATION
Refer to DTC P0750. P0750

MONITOR SCANTOOL DATA
1. Connect scantool to data link connector (DLC).
2. Engine "ON".
3. Monitor the "UD SOL. VALVE" parameter on the scantool.





4. Shift gear position "N" to "D".
Specification: P/N -> 100%, D -> 0.0%
5. Does "UD SOLENOID DUTY " follow the reference data?
YES >>
^ Fault is intermittent caused by poor contact in the sensor's and/or TCM (PCM)'s connector or was repaired and TCM (PCM) memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Repair or replace as necessary and go to "Verification Vehicle Repair" procedure.
NO >>
^ Go to "Terminal & Connector Inspection" procedure.

TERMINAL & CONNECTOR INSPECTION
Refer to DTC P0750. P0750

POWER SUPPLY CIRCUIT INSPECTION
1. Disconnect "A/T SOLENOID VALVE" connector.
2. Measure voltage between terminal "9" of the sensor harness connector and chassis ground.





3. Turn ignition switch OFF -> ON
Specification: 12V is measured only for approximately 0.5 sec.
4. Is voltage within specifications?
YES >>
^ Go to "Signal circuit inspection" procedure.
NO >>
^ Check that A/T-30A Fuse in engine room junction is installed or not blown. Check for open in harness. Repair as necessary and Go to "Verification Vehicle Repair" procedure.

SIGNAL CIRCUIT INSPECTION
1. Check signal circuit open inspection
1. Ignition "OFF".
2. Disconnect "A/T SOLENOID VALVE" connector and "PCM/TCM" connector





3. Measure resistance between terminal "3" of the ATM SOLENOID VALVE harness connector and terminals" of the PCM/TCM harness connector
Specification: approximately 0 Ohms
4. Is resistance within specifications?
YES >>
^ Go to "Check signal circuit short Inspection" procedure.
NO >>
^ Check for open in harness. Repair as necessary and Go to "Verification Vehicle Repair" procedure.

2. Check signal circuit short inspection
1. Ignition "OFF".
2. Disconnect "A/T SOLENOID VALVE" connector and "PCM/TCM" connector.





3. Measure resistance between terminal "3" of the ATM SOLENOID VALVE harness and chassis ground.
Specification: Infinite
4. Is resistance within specifications?
YES >>
^ Go to "Component Inspection" procedure.
NO >>
^ Check for short to ground in harness. Repair as necessary and Go to "Verification Vehicle Repair" procedure.

COMPONENT INSPECTION
1. CHECK SOLENOID VALVE
1. Ignition "OFF".
2. Disconnect "A/T SOLENOID VALVE" connector.





3. Measure resistance between terminal "3" and terminal "9" of the ATM SOLENOID VALVE component.
Specification: Approximately 2.7 - 3.4 Ohms (20°C)
4. Is resistance within specification?
YES >>
^ Go to "CHECK PCM/TCM" as below.
NO >>
^ Replace UD SOLENOID VALVE as necessary and go to "Verification Vehicle Repair" procedure.
2. CHECK PCM/TCM
1. Connect scantool to data link connector (DLC).
2. Ignition "ON" & Engine "OFF".
3. Select A/T Solenoid valve Actuator test and Operate Actuator test.
4. Can you hear operating sound for UD SOLENOID VALVE Actuator Testing Function?
YES >>
^ Go to "Verification Vehicle Repair" procedure.
NO >>
^ Replace PCM/TCM as necessary and Go to "Verification Vehicle Repairs" procedure.

ACTUATOR TEST CONDITION
1. IG SWITCH ON
2. TRANSAXLE RANGE SWITCH is normal
3. P RANGE
4. Vehicle Speed 0 km/h
5. Throttle position sensor < 1V
6. IDLE SWITCH ON
7. ENGINE RPM 0

VERIFICATION OF VEHICLE REPAIR
Refer to DTC P0560. P0560