Captiva

DTC P0716, P0717, P07BF, or P07C0

The input speed sensor (ISS) is a hall-effect type sensor. The ISS mounts to the inside of the automatic transmission case assembly and connects to the control solenoid valve assembly through a 2-wire harness and connector. The sensor faces the reluctor wheel which is attached to the 4-5-6 clutch and 3-5-R clutch housing assembly. The sensor receives battery voltage on the input speed sensor ISS Supply Voltage circuit from the transmission control module (TCM). As the 4-5-6 clutch and 3-5-R clutch housing rotates, the sensor produces a signal frequency based on the teeth of the reluctor wheel. This signal is transmitted through the ISS signal circuit to the TCM. The TCM uses the ISS signal to determine line pressure, transmission shift patterns, torque converter clutch (TCC) slip speed and gear ratio.

P0716

P0717

P07BF or P070C

The ignition voltage is 9.0 volts or greater.

P0716

Transmission input speed drops 1,350 RPM for greater than 1 second and does not recover.

P0717

Transmission input shaft speed is less than 50 RPM for 5 seconds when output speed is detected.

P07BF

The transmission ISS analogue signal voltage is 0.25 volts or less for 4 seconds.

P070C

The transmission ISS analogue signal voltage is 4.75 volts or greater for 4 seconds.

P0716

P0717

P07BF or P070C

DTCs P0716, P0717, P07BF, and P070C are Type A DTCs.

Inspect the ISS harness and connector for metallic debris and the reluctor wheel for damage or misalignment.

Schematic Reference

Automatic Transmission Controls Schematics

Connector End View Reference

Description and Operation

Electrical Information Reference

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Special Tools

For equivalent regional tools, refer to Special Tools .

1. Ignition ON, verify with a scan tool the transmission ISS/OSS Supply Voltage test status parameter displays OK.
2. Engine ticking over in PARK, observe the scan tool Transmission ISS parameter while varying the engine speed. The Transmission ISS parameter should change with the engine speed and not drop out.
3. After performing the above steps, verify that the DTC does not reset by operating the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions you observe from the Freeze Frame/Failure Records data. If the vehicle passes the Circuit/System Verification procedure, then STOP. Do not perform the Circuit/System Testing or Component Testing as this may result in an unnecessary part replacement. Refer to Testing for Intermittent Conditions and Poor Connections .

Note: You must perform the Circuit/System Verification first.

1. Ignition OFF, remove the Q8 control solenoid valve assembly. Refer to Control Solenoid Valve and Transmission Control Module Assembly Replacement .
2. Connect the DT-48616-10 harness between the vehicle wire harness X1 14-way transmission electrical connector, and the Q8 control solenoid valve assembly.
3. Ignition ON, test for 11-13 volts between the ISS voltage circuit terminal B X3 on the control solenoid valve assembly and ground.

⇒	If not within the specified range, replace the Q8 control solenoid valve assembly.

4. Perform the Control Solenoid Valve and Transmission Control Module Assembly Input Shaft Speed/Output Shaft Speed Input Test .
5. Inspect the reluctor for damage or misalignment. Repair or replace as necessary.
6. If all of the above test normal, replace the B14C input speed sensor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.