Diagnostic Instructions
DTC Descriptors
DTC P0969: Clutch Pressure Control (PC) Solenoid 3 System Performance
DTC P0970: Clutch Pressure Control (PC) Solenoid 3 Control Circuit Low Voltage
DTC P0971: Clutch Pressure Control (PC) Solenoid 3 Control Circuit High Voltage
Circuit/System Description
The clutch pressure control (PC) solenoid 3 is part of the control solenoid (w/body and TCM) valve assembly and is not serviced separately. The TCM supplies 12 volts to the clutch PC solenoid 3 on the high side driver 2
circuit. The TCM controls the clutch PC solenoid 3 through the clutch PC solenoid 3 control circuit. The normally high clutch PC solenoid 3 flows fluid to the low and reverse clutch and 4-5-6 clutch assemblies when commanded ON and exhausts
fluid when commanded OFF. The clutch PC solenoid 3 regulates the transmission fluid pressure to the low and reverse clutch and 4-5-6 clutch assemblies.
Conditions for Running the DTC
| • | The engine speed is greater than 500 RPM for 5 seconds. |
| • | The ignition voltage is between 8.6 volts and 19.0 volts. |
Conditions for Setting the DTC
P0969
The TCM detects an invalid voltage in the clutch PC 3 solenoid control circuit for 4.4 seconds in a 5.0 second sample.
P0970
The TCM detects low voltage on the clutch PC solenoid 3 control circuit for 300 milliseconds in a 375 millisecond sample.
P0971
The TCM detects high voltage on the clutch PC solenoid 3 control circuit for 300 milliseconds in a 375 millisecond sample.
Action Taken When the DTC Sets
P0969
| • | DTC P0969 is a Type C DTC. |
| • | The TCM freezes transmission adaptive functions. |
P0970
| • | DTC P0970 is a Type A DTC. |
| • | The TCM defaults the transmission to 3rd gear if the current gear is 1st, 2nd, or 3rd, or 5th gear if the current gear is 4th, 5th, or 6th gear. |
| • | The TCM inhibits torque converter clutch (TCC). |
| • | The TCM commands maximum line pressure. |
| • | The TCM freezes transmission adaptive functions. |
P0971
| • | DTC P0971 is a Type A DTC. |
| • | The TCM defaults the transmission to 3rd gear if the current gear is 1st, 2nd, or 3rd, or 5th gear if the current gear is 4th, 5th, or 6th gear. |
| • | The TCM inhibits torque converter clutch (TCC). |
| • | The TCM commands maximum line pressure. |
| • | The TCM freezes transmission adaptive functions. |
Conditions for Clearing the DTC
| • | DTC P0969 is a Type C DTC. |
| • | DTCs P0970 and P0971 are Type A DTCs. |
Reference Information
Description and Operation
Transmission General Description
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Circuit Verification
- Ensure the transmission fluid temperature is between 50-80°C (122-176°F).
- Perform the
Control Solenoid Valve and Transmission Control Module Assembly Cleaning to dislodge debris and free up the valves.
- Operate the vehicle in 2nd gear long enough to ensure at least a 3°C (5°F) rise in TCM temperature, then operate the vehicle in Park for 5 seconds.
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
| ⇒ | If the DTC does not reset, replace the control solenoid (w/body and TCM) valve assembly. |
Repair Instructions
Important:
Perform the
Diagnostic Repair Verification after completing the diagnostic procedure.
