ā¢ | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
ā¢ | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
ā¢ | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Input Speed Sensor Supply Voltage | P0717 | P0717 | -- | P0716 |
Input Speed Sensor Signal | P0716, P0717 | P0716, P0717 | P0716, P0717 | P0716 |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage |
---|---|---|---|
Operating Conditions: Engine running, normal operating temperature Parameter Normal Range: 450-7,000 RPM | |||
ISS/OSS Supply Voltage (Pin B) | Out of Range | Out of Range | OK |
Transmission ISS (Pin A) | 0 RPM | 0 RPM | 0 RPM |
The input speed sensor (ISS) is a hall-effect type sensor. The sensor faces the 1-2-3-4 and 3-5-R clutch housing machined teeth surface. The sensor receives 8.3-9.3 volts on the input/output speed sensor (ISS/OSS) supply voltage circuit from the transmission control module (TCM). As the 1-2-3-4 and 3-5-R clutch housing rotates, the sensor produces a signal frequency based on the machined surface of the 1-2-3-4 and 3-5-R clutch housing. This signal is transmitted through the ISS signal circuit to the control solenoid (w/body and TCM) valve assembly. The control solenoid (w/body and TCM) valve assembly uses the ISS signal to determine line pressure, transmission shift patterns, torque converter clutch (TCC) slip speed and gear ratio.
ā¢ | No ISS DTC P0717. |
ā¢ | No OSS DTCs P0722 or P0723. |
ā¢ | The engine speed is greater than 500 RPM for 5 seconds. |
ā¢ | The ignition voltage is between 8.6 volts and 19.0 volts. |
ā¢ | DTC P0716 has not passed this ignition cycle. |
ā¢ | The engine torque is greater than 50 NĀ·m (37 lb ft). |
ā¢ | The throttle position is greater than 8 percent. |
ā¢ | No OSS DTCs P0722 or P0723. |
ā¢ | The engine speed is greater than 500 RPM for 5 seconds. |
ā¢ | The ignition voltage is between 8.6 volts and 19.0 volts. |
ā¢ | The vehicle speed is greater than 16 km/h (10 mph). |
ā¢ | The engine torque is greater than 50 NĀ·m (37 lb ft). |
ā¢ | DTC P0717 has not passed this ignition cycle. |
ā¢ | Transmission input speed is 1,050 RPM or greater for 2 seconds. |
ā¢ | Transmission input speed drops 1,000 RPM for greater than 3.25 seconds and does not recover. |
Transmission input shaft speed is less than 100 RPM for 4.5 seconds when output speed is detected.
ā¢ | P0716 and P0717 are Type A DTCs. |
ā¢ | The TCM freezes transmission adaptive functions. |
ā¢ | The TCM turns OFF all solenoids. |
P0716 and P0717 are Type A DTCs.
Damage or misalignment of the 3-5-R clutch piston housing machined teeth surface may cause a speed sensor malfunction.
Automatic Transmission Controls Schematics
Electronic Component Description for input speed sensor (ISS)
ā¢ | Circuit Testing |
ā¢ | Wiring Repairs |
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
J 38522 Variable Signal Generator
ā | If not within the specified range, replace the control solenoid (w/body and TCM) valve assembly. |
Important:
ā¢ | Perform the Service Fast Learn Adapts following all transmission related repairs. |
ā¢ | Before replacing the TCM, perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for control solenoid (w/body and TCM) valve assembly replacement, setup, and programming