P2716
DTC P2716 or P2719-P2721
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 Descriptors
DTC P2716
- Pressure Control Solenoid Valve 3 System Performance
DTC P2719
- Pressure Control Solenoid Valve 3 System Performance
DTC P2720
- Pressure Control Solenoid Valve 3 Control Circuit Low Voltage
DTC P2721
- Pressure Control Solenoid Valve 3 Control Circuit High Voltage
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The shift control solenoid (SLC3) is installed on the front valve body. The solenoid linearly control hydraulic pressure in response to signals output from the transmission control module (TCM). Through this, the SLC3 controls operating hydraulic pressure to the clutch 3 for smooth shifting. According to each shift control solenoid assembly, the transmission shifts from 1st gear into 6th gear and vice versa. As a fail-safe function, if any shift control solenoid assembly abnormality occurs, the TCM will disable the current to the solenoids.
Conditions for Running the DTC
P2716
* The ignition voltage is between 10.2-15.5 V.
* The engine speed is greater than 400 RPM for 2 s.
* The transmission is not in emergency mode.
* Driving in D range.
* TCM communication is normal.
* DTCs P2720 and P2721 are not set.
P2719
* The ignition voltage is between 10.2-15.5 V.
* The engine speed is greater than 400 RPM for 2 s.
* The transmission is not in emergency mode.
* Driving in D range.
* TCM communication is normal.
* The Automatic Transmission Fluid Temperature is more than 20°C (68°F).
* SLC3 current is more than 0.85 A.
* SLC3 current is not changed.
P2720
* The ignition voltage is between 10.2-15.5 V.
* The engine speed is greater than 400 RPM for 2 s.
* The transmission is not in emergency mode.
* Driving in D range.
* TCM communication is normal.
* DTC P2721 is not set.
P2721
* The ignition voltage is between 10.2-15.5 V.
* The engine speed is greater than 400 RPM for 2 s.
* The transmission is not in emergency mode.
* Driving in D range.
* TCM communication is normal.
* DTC P2720 is not set.
Conditions for Setting the DTC
P2716
Deviation between commanded current and feedback current
P2719
The TCM detects the error current more than 80 mA for 2.75 ms.
P2720
The TCM detects at least 5 times less than 20 mA current consumption of the SLC3 control circuit for 100 ms.
P2721
The TCM detects at least 5 times more than 1 358 mA current consumption of the SLC3 control circuit for 100 ms.
Action Taken When the DTC Sets
P2716, P2719
* DTCs P2716 and P2719 are Type B DTCs.
* The TCM turns OFF all solenoids.
* The TCM allows the vehicle to operate only in the second gear and reverse (R) range after a stop.
P2720, P2721
* DTCs P2720 and P2721 are Type B DTCs.
* No self learning function
* The TCM turns OFF all solenoids.
* The TCM allows the vehicle after a stop to operate only in the second gear and reverse (R) range.
Conditions for Clearing the DTC
P2716, P2719
* DTCs P2716 and P2719 are Type B DTCs.
* The TCM detects the error current less than 50 mA for 500 ms.
P2720, P2721
* DTCs P2720 and P2721 are Type B DTCs.
* The current consumption of the SLC3 control circuit is 0.1-1.1 A for 500 ms.
Diagnostic Aids
When attempting to set solenoid electrical DTCs, ensure the automatic transmission is warmed up and the transmission is operated in 2nd gear long enough to ensure a 3°C (37°F) increase in transmission fluid temperature. This will place the TCM under the optimal conditions to test solenoid electrical DTCs.
Reference Information
Schematic Reference
Automatic Transmission Controls Schematics AF40-6 (MDK) - Automatic Transmission
Connector End View Reference
Component Connector End Views Sunshade - Left
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
Description and Operation
Transmission Component and System Description Transmission Component and System Description
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References Control Module References for scan tool information
Circuit/System Verification
1. Engine running, ensure the transmission fluid temperature is between 50-80°C (122-176°F).
2. Engine running in Park position, parking brake applied, place the gear select lever in each gear position for 2-3 s. Return the gear select lever to the Park position.
3. Verify the scan tool Pressure Control Solenoid Valve 3 Current parameter is between 0.1-1.1 A.
• If the parameter not between 0.1-1.1 A
Refer to Circuit/System Testing
• If the parameter between 0.1-1.1 A
4. Operate the vehicle within the Conditions for Running the DTC. It may be helpful to operate the vehicle within the conditions identified from the Freeze Frame/Failure Records data.
• If the DTC is set
Refer to Circuit/System Testing
• If the DTC is not set
5. All OK.
Circuit/System Testing
1. Engine running at idle, command the Pressure Control Solenoid Valve 3 with a scan tool.
2. Verify the value should change from 0.0-1.1 A.
• If the value does not change from 0.0-1.1 A
1. Ignition OFF, and all vehicle systems OFF. Remove the K71 Transmission Control Module to disconnect the X2 harness connector. It may take up to 2 min for all vehicle systems to power down.
2. Test for infinite resistance between ground and the terminals listed below:
* Low reference circuit terminal 22 at the X2 harness connector
* Control circuit terminal 14 at the X2 harness connector
• If less than infinite resistance, replace the wiring harness
• If infinite resistance
3. Test for 5-5.6 ohms at 20°C (68°F) between the low reference circuit terminal 22 and the control circuit terminal 14.
• If not between 5-5.6 ohms, perform the Control Solenoid Valve Inspection AF40-6 (MDK) - Automatic Transmission if the inspection fails, replace the control valve body.
• If the value changes from 0.0-1.1 A
3. Verify the DTC does not set while operating the vehicle under the Conditions for Running the DTC.
• If the DTC is set
Replace the K71 Transmission Control Module.
• If the DTC is not set
4. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the repair.
* Control valve body replacement, refer to Control Valve Body Replacement Control Valve Body Replacement
* Wiring harness replacement, refer to Automatic Transmission Wiring Harness Replacement Service and Repair
* Refer to Control Module References Control Module References for TCM replacement, programming and setup.
* Perform the Transmission Adaptive Functions Transmission Adaptive Functions.