P0716
DTC P0716 or P0717
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 P0716
- Input Speed Sensor Performance
DTC P0717
- Input Speed Sensor Circuit No Signal
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The automatic transmission input and output speed sensor (ISS and OSS) assembly each are part of a single harness. The ISS is a hall-effect type sensor. The ISS/OSS mounts to the control valve upper body assembly. The ISS sensor end faces the splines on the 1-2-3-4 and 3-5-R clutch housing outside diameter surface. The sensor receives 8.3-9.3 volts on the ISS/OSS supply voltage circuit from the control solenoid valve assembly. As the 1-2-3-4 and 3-5-R clutch housing rotates, the sensor produces a signal frequency based on the splines on the clutch housing outside diameter surface. This signal is transmitted through the ISS signal circuit to the control solenoid valve assembly. The control solenoid valve assembly uses the ISS signal to determine line pressure, transmission shift patterns, torque converter clutch (TCC) slip speed and gear ratio.
Conditions for Running the DTC
P0716
* DTC P0101, P0102, P0103, P0121, P0122, P0123, P0717, P0752, P0973, or P0974 is not set.
* The engine speed is 400 RPM or greater for 5 seconds.
* Engine torque is greater than 0 Nm (0 lb ft).
* Ignition voltage is between 8.6-32 V.
* The vehicle speed is greater than 0 km/h (0 mph).
* The throttle position must be greater than 0 percent.
P0717
* DTC P0101, P0102, P0103, P0722 or P0723 is not set.
* The engine speed is 400 RPM or greater for 5 seconds.
* Ignition voltage is between 8.6-32 V.
* The TCM must receive a valid torque signal from the ECM.
* The vehicle speed is greater than 16 km/h (10 mph).
* The engine torque is greater than 50 Nm (37 lb ft).
Conditions for Setting the DTC
P0716
The TCM detects the transmission input speed sensor signal dropped greater than 900 RPM for 1 second.
P0717 - Condition 1
The TCM detects the transmission input shaft speed is less than 67 RPM for 5 seconds.
P0717 - Condition 2
The TCM detects that P0722 set and the transmission input speed is less than 653 RPM for 5 seconds.
Action Taken When the DTC Sets
P0716
* DTC P0716 is a Type A DTC.
* The TCM freezes transmission adaptive functions.
* The TCM turns OFF all solenoids.
* The TCM inhibits Tap Up/Down functions.
* The transmission defaults to second gear.
* The TCM enables torque management.
* The TCM inhibits manual shifting of forward gears.
P0717
* DTC P0717 is a Type A DTC.
* The high side driver is turned OFF.
* The TCM turns OFF all solenoids.
* The TCM freezes transmission adaptive functions.
* The TCM inhibits Tap Up/Down functions.
* The TCM inhibits manual shifting of forward gears.
Conditions for Clearing the DTC
DTC P0716 and P0717 are Type A DTCs.
Diagnostic Aids
Inspect the ISS/OSS, harness, connector, and control solenoid valve assembly for metallic debris and the 1-2-3-4 and 3-5-R clutch housing splines on the outside diameter surface for damage or misalignment. Proper torque of the ISS/OSS mounting bolt is critical to proper speed signal operation.
Reference Information
Schematic Reference
Automatic Transmission Controls Schematics Electrical Diagrams
Connector End View Reference
* Component Connector End Views 5 Bow Lowered Switch (CM7)
* Inline Harness Connector End Views X102
Description and Operation
Electronic Component Description Electronic Component Description
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
Scan Tool Reference
Control Module References Control Module References for scan tool information
Special Tools
DT-47825-10 - Jumper Harness
For equivalent regional tools, refer to Special Tools Tools and Equipment.
Circuit/System Verification
1. Ignition ON.
2. Verify the scan tool ISS/OSS Supply Voltage parameter displays OK.
• If OK is not displayed
Refer to Circuit/System Testing.
• If OK is displayed
3. Engine idling in Park position.
4. Verify the scan tool Transmission ISS parameter varies with engine RPM and does not drop out.
• If the Transmission ISS does not vary with engine speed or drops out
Refer to Circuit/System Testing.
• If the Transmission does vary with engine speed and does not drop out
5. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observe from the Freeze Frame/Failure Records data.
6. Verify the DTC does not set.
• If the DTC sets
Refer to Circuit/System Testing.
• If the DTC does not set
7. All OK.
Circuit/System Testing
Note: You must perform the Circuit/System Verification first.
1. Ignition OFF, remove the Q8 control solenoid valve assembly.
2. Verify the Q8 Control Solenoid Valve Assembly passes the Input Shaft Speed/Output Shaft Speed Input Test. Refer to Control Solenoid Valve and Transmission Control Module Assembly Input Shaft Speed/Output Shaft Speed Input Test Control Solenoid Valve and Transmission Control Module Assembly Input Shaft Speed/Output Shaft Speed Input Test.
• If the Q8 Control Solenoid Valve Assembly does not pass the ISS/OSS test
Replace the Q8 Control Solenoid Valve Assembly.
• If the Q8 Control Solenoid Valve Assembly passes the ISS/OSS test
3. Verify there is no damage or misalignment with the machined teeth slots on the 1-2-3-4 and 3-5-R clutch housing outer surface.
• If the machined surfaces are damaged or misaligned
Repair or replace as necessary.
• If the machined surfaces are not damaged or misaligned
4. Replace the B14A/B14C Transmission Input and Output Speed Sensors.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the repair.
* Perform the Reset Transmission Adapts Reset Procedure following all transmission related repairs.
* Perform the Input and Output Speed Sensor Replacement Service and Repair.
* Refer to Control Module References Control Module References for control solenoid valve assembly replacement, programming, and setup.
* Perform the Control Solenoid Valve and Transmission Control Module Assembly Input Shaft Speed/Output Shaft Speed Input Test Control Solenoid Valve and Transmission Control Module Assembly Input Shaft Speed/Output Shaft Speed Input Test.