P0971

DTC P0969-P0971

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor
DTC P0969
- Pressure Control Solenoid 3 System Performance

DTC P0970
- Pressure Control Solenoid 3 Control Circuit Low Voltage

DTC P0971
- Pressure Control Solenoid 3 Control Circuit High Voltage

Diagnostic Fault Information






Circuit/System Description

The transmission control module (TCM) supplies 12 volts to the clutch pressure control solenoid 3 on the high side driver 1 circuit. The transmission control module controls the clutch pressure control solenoid 3 through the clutch pressure control solenoid 3 control circuit. The normally high clutch pressure control solenoid 3 controls fluid to the variable low and 1-2 reverse clutch when commanded ON and exhausts fluid when commanded OFF. The clutch pressure control solenoid 3 regulates the transmission fluid pressure to the variable low and 1-2 reverse clutch. The clutch pressure control solenoid 3 is part of the control solenoid valve assembly and is not serviced separately.

Conditions for Running the DTC

* Propulsion system is active.
* The system voltage is 11-16 V.

Conditions for Setting the DTC

P0969

The transmission control module detects an internal electrical performance malfunction of the clutch pressure control solenoid control circuit for 5 seconds.

P0970

The transmission control module detects an internal low voltage electrical malfunction of the clutch pressure control solenoid control circuit for 1 second.

P0971

The transmission control module detects an internal high voltage electrical malfunction of the clutch pressure control solenoid control circuit for 1 second.

Action Taken When the DTC Sets

* DTC P0969 is a Type B DTC.
* DTCs P0970 and P0971 are Type A DTCs.

Conditions for Clearing the DTC

* DTC P0969 is a Type B DTC.
* DTCs P0970 and P0971 are Type A DTCs.

Reference Information
Schematic Reference

Automatic Transmission Controls Schematics Electrical Diagrams
Connector End View Reference

Component Connector End Views Hybrid/EV Battery Pack X1
Electrical Information Reference

* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Circuit/System Verification

1. Vehicle ON, verify the transmission fluid temperature is between 50-80°C (122-176°F).
2. Drive the vehicle in order to obtain dual motor or dual motor and ICE mode, observe the scan tool Pressure Control Solenoid Valve 3 Performance Test Status parameters. The reading should display OK.

• If the reading is not within the specified range, replace the Q8 control solenoid valve assembly.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

* Control Module References Programming and Relearning for Control Solenoid Valve Assembly and Transmission Control Module Assembly replacement, programming, and setup.
* Perform the Reset Transmission Adapts Programming and Relearning following all transmission related repairs.