Diagnostic Instructions
DTC Descriptor
DTC P0762: Shift Solenoid (SS) 3 Valve Performance - Stuck On
Circuit/System Description
The transmission control module (TCM) controls the 1-2, 2-3, reverse shift solenoid valve with an internal driver that pulls the solenoid control circuit to high.
Conditions for Running the DTC
• | No Throttle Position (TP) Sensor DTC P0120 |
• | No Transmission Range (TR) Switch DTCs P0706, P0707, or P0708 |
• | No Transmission Fluid Temperature (TFT) Sensor DTCs P0711, P0712, or P0713 |
• | No Speed Sensor DTCs P0717, P0722, P0727 |
• | No Pressure Control (PC) Solenoid DTCs P0962, P0963, P0966, P0967, P0970, or P0971 |
• | No Shift Solenoid (SS) Control Circuit DTCs P0973, P0974, P0976, P0977, P0979, P0980, P0982, P0983, P0985, or P0986 |
• | No Transmission Torque Delivered Circuit DTC P2637 |
• | No Communications DTC’s U0100 or U2104 |
• | Output speed greater than one half that of the input speed. |
• | Input speed is greater than 400 RPM. |
• | Transmission fluid temperature (TFT) is greater than 20°C. |
• | Engine speed is greater than 400 RPM. |
• | Throttle position greater than 10 percent. |
• | Shift range equals D, M, or L for at least 2 seconds. |
• | Ignition voltage is greater than 10.5 volts. |
Conditions for Setting the DTC
4th gear commanded and the current ratio is within 1.87:1 - 2.02:1 for 12 seconds or 5th gear commanded and the current ratio is within 1.44:1 - 1.56:1 for 12 seconds
Action Taken When the DTC Sets
• | The transmission will operate in 3rd gear in D or M range. |
• | Limit engine torque to 150 N·m. |
Conditions for Clearing the DTC
DTC P0762 is a Type A DTC.
Diagnostic Aids
Improper transmission fluid level may cause DTC P0742 to set. Refer to the
Transmission Fluid Check
.
Reference Information
Schematic Reference
Automatic Transmission Controls Schematics
Connector End View Reference
Component Connector End Views
Electrical Information Reference
DTC Type Reference
Scan Tool Reference
Control Module References
for scan tool information
Circuit/System Verification
- Ignition ON, observe the DTC information with a scan tool.
- Record Freeze Frame and Failure Records.
- Clear DTCs.
- Operate the vehicle under the conditions observed in the Failure Records.
- Observe the DTC information with the scan tool. Verify that the DTC does not set.
Circuit/System Testing
- Using a scan tool, command shift solenoid 3 ON and OFF. The solenoid should click when commanded.
- Perform a line pressure test. Refer to
Line Pressure Check
.
- Remove the control valve body cover. Refer to
Control Valve Body Cover Removal
.
- Inspect the inside of the control valve body cover for excessive sediment. There should not be excessive sediment.
- Inspect the control valve body assembly for the following conditions. The conditions should not be found.
• | Torn or missing 1-2, 2-3, reverse shift solenoid valve assembly O-ring seal |
⇒ | If any of the above conditions are found, repair or replace the valve body assembly. Refer to
Control Valve Body Replacement
procedure. If all circuits and components test normal, replace the transmission. |
- Verify that the control valve body has been serviced within the past 3 months.
⇒ | If all circuits and components test normal, replace the transmission. |
Repair Instructions
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.