Diagnostic Instructions
DTC Descriptor
DTC P0752: Shift Solenoid (SS) 1 Valve Performance - Stuck On
Circuit/System Description
The shift solenoid (SS) valve 1 is part of the lower control valve body. The SS valve 1 is a normally closed (NC) solenoid valve and controls fluid to the clutch select valve 3- and related clutches. The transmission control
module (TCM) looks for a good shifts from first gear engine braking, to first gear freewheel, to second gear and then if third gear indicates neutral, and the TFP Sw 5 does not change states, the TCM sets the DTC.
Conditions for Running the DTC
| • | First gear locked is commanded. |
| • | Attained gear slip is equal to or greater than 75 RPM for 2 seconds. |
Conditions for Setting the DTC
| • | The commanded gear is third. |
| • | The attained gear slip is equal to or greater than 75 RPM for 2 seconds. |
| • | The TFP Switch 5 does not change states after third gear command. |
Action Taken When the DTC Sets
DTC P0752 is a Type A DTC.
Conditions for Clearing the DIC/DTC
DTC P0752 is a Type A DTC.
Diagnostic Aids
When attempting to set transmission performance DTCs, observe the Freeze Frame and Failure Records to assist in duplicating the failure conditions. Ensure the transmission fluid level is correct and there are no leaks.
Reference Information
Schematic Reference
Automatic Transmission Controls Schematics
Connector End View Reference
Component Connector End Views
Electrical Information Reference
Scan Tool Reference
Control Module References
for scan tool information
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Special Tools
DT-47825
Control Solenoid Test Plate
Circuit/System Verification
- Perform the
Transmission Fluid Check
.
- Operate the vehicle in drive from a complete stop, with the calculated throttle position greater than 15 percent to obtain 72 km/h (45 mph) 2 times.
| ⇒ | If the DTC resets, go to Circuit/System Testing. |
Circuit/System Testing
- Perform the
Line Pressure Check
.
| ⇒ | If the pressure is out of specification correct that concern first. |
- Perform the
Control Solenoid Valve and Transmission Control Module Assembly Cleaning
and retest the DTC as outlined in the Circuit/System Verification steps.
| ⇒ | If the DTC resets, continue on with testing. |
- Perform the
Control Solenoid Valve and Transmission Control Module Assembly Inspection
.
| ⇒ | If a concern is found, repair or replace the control solenoid (w/body and TCM) valve assembly. |
- Perform the
Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test
.
| ⇒ | If the shift solenoid 1 is found to be leaking or stuck ON, replace the control solenoid (w/body and TCM) valve assembly. |
Repair Instructions
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
| • | Replace the control solenoid (w/body and TCM) valve assembly. Refer to
Control Module References
for replacement, setup, or programming. |
