P0765
DTC P0765 SHIFT CONTROL SOLENOID VALVE D CIRCUIT MALFUNCTIONCOMPONENT LOCATION
Refer to DTC P0741. P0741
GENERAL DESCRIPTION
The Automatic Transmission changes the gear position of the transmission 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), LID (Under Drive Clutch), OD (Over Drive Clutch), REV (Reverse Clutch), and RED (Reduction Brake, only for 5 speed transmissions). The OD Clutch is engaged in the 3rd gear and 4th gear positions.
DTC DESCRIPTION
The PCM/TCM checks the Under Drive Clutch Control Signal by monitoring the feedback signal from the solenoid valve drive circuit. If an unexpected signal is monitored (for example, high voltage is detected when low voltage is expected or low voltage is detected when high voltage is expected), the TCM judges that the OVER DRIVE CLUTCH drive control solenoid circuit is malfunctioning and sets this code.
DTC DETECTING CONDITION
DTC DETECTING CONDITION:
SPECIFICATION
Refer to DTC P0750. P0750
MONITOR SCAN TOOL DATA
1. Connect scan tool to data link connector (DLC).
2. Engine "ON".
3. Monitor the "OD SOL. VALVE" parameter on the scan tool.
4. Shift gear position 1st to 3rd.
Specification: 1st - 100%, 3rd - 0.0%
Specification:
Is "OD SOLENOID DUTY" within specifications?
YES - Fault is intermittent caused by poor contact in the sensor's and/or PCM/TCM's connector or was repaired and PCM/TCM 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 of Vehicle Repair" procedure.
NO - Go to "W/Harness 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: 12 V is measured only for approximately 0.5 sec
Specification:
Is voltage within specifications?
YES - Go to "Signal Circuit Inspection" procedure.
NO - Check that A/T-20A Fuse in engine room junction is installed or not blown. Check for open in harness. Repair as necessary and Go to "Verification of 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 "5" of the ATM SOLENOID VALVE harness connector and terminal "33" of the PCM/TCM harness connector
Specification: Approximately 0 Ohms
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 of Vehicle Repair" procedure.
2. Check signal circuit short inspection
1. Ignition "OFF" & Engine "OFF".
2. Disconnect "A/T SOLENOID VALVE" connector and "PCM/TCM" connector.
3. Measure resistance between terminal "Y of the ATM SOLENOID VALVE harness and chassis ground.
Specification: Infinite
Specification:
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 of Vehicle Repair" procedure.
COMPONENT INSPECTION
1. CHECK SOLENOID VALVE
1. Ignition "OFF".
2. Disconnect "A/T SOLENOID VALVE" connector.
3. Measure resistance between terminal "5" and terminal "9" of the ATM SOLENOID VALVE harness connector.
Specification: Approximately 2.7 - 3.4 Ohms (20°C)
Specification:
4. Is resistance within specifications?
YES - Go to "CHECK PCM/TCM".
NO - Replace OD SOLENOID VALVE as necessary and go to "Verification of Vehicle Repair" procedure,
2. CHECK TCM/PCM
1. Connect scan tool 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 using LR SOLENOID VALVE Actuator Testing Function?
YES - Go to "Verification of Vehicle Repair" procedure.
NO - Replace PCM/TCM as necessary and Go to "Verification of Vehicle Repair" procedure.
ACTUATOR TEST CONDITION
1. IG SWITCH ON
2. TRANSAXLE RANGE SWITCH is normal
3. P RANGE
4. Vehicle Speed O km/h
5. Throttle position sensor < 1 V
6. IDLE SWITCH ON
7. ENGINE RPM 0
VERIFICATION OF VEHICLE REPAIR
Refer to DTC P0750. P0750