2010 Cadillac Truck SRX AWD V6-3.0L Page 1688

2010 Cadillac Truck SRX AWD V6-3.0L Page 1688

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC P0722

- Output Speed Sensor (OSS) Circuit Low Voltage

DTC P0723

- Output Speed Sensor (OSS) Intermittent

Diagnostic Fault Information

Typical Scan Tool Data

Circuit/System Description

The output speed sensor (OSS) is a hall-effect type sensor. The sensor faces the front differential transfer drive gear. The sensor receives 8.3-9.3

volts on the OSS supply voltage circuit from the transmission control module (TCM). As the output shaft rotates, the sensor produces a signal

frequency based on the machined surface of the output shaft. This signal is transmitted through the OSS signal circuit to the TCM. The TCM uses

the OSS signal to determine line pressure, transmission shift patterns, torque converter clutch (TCC) slip speed and gear ratio.

Conditions for Running the DTC

P0722

* No DTCs P0101, P0102, P0103, P0121, P0122, P0123, P0716, P0717, or P0723.

* The selected range is not PARK or NEUTRAL.

* The transmission input speed is between 1,000-6,500 RPM.

* The engine speed is between 3,200-5,000 RPM.

* The calc. throttle position is greater than 5 percent.

* The throttle position signal is valid.

* The engine torque is greater than 35 Nm (26 lb ft).

* The engine torque signal is valid.

* The TFT is greater than -40掳C (-40掳F).

* The engine speed is greater than 400 RPM for 5 seconds.

* The ignition voltage is 8.6 volts or greater.

P0723

* No DTCs P0101, P0102, P0103, P0121, P0122, P0123, P0723, P0973, P0974, P0976, P0977.

* Greater than 5 seconds since last range change.

* The engine speed is greater than 400 RPM for 5 seconds.

* The ignition voltage is greater than 8.6 volts.

Conditions for Setting the DTC