P215C
DTC P215C
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 Descriptor
DTC P215C
- Output Shaft Speed (OSS) - Wheel Speed Correlation
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The A/Trans Output Speed Sensor Assembly has 2 internal hall-effect type sensors, and is capable of sensing both speed and direction. The output speed sensor is internal to the transmission and mounts to the A/Trans case assembly and is connected to the transmission control module (TCM) through the control solenoid valve assembly and transmission internal harness. The A/Trans Output Speed Sensor Assembly faces the park gear machined teeth surface. The sensor receives 8.3-9.3 volts on the OSS supply voltage circuit from the TCM. As the output shaft rotates, the sensor produces a signal frequency based on the machined surface of the output shaft.
The two sensor elements in the output speed sensor assembly are spaced approximately 1/2 a tooth apart.
* When the vehicle is moving in a forward direction, sensor A detects a particular tooth before sensor B.
* When the vehicle is moving in a reverse direction, sensor B detects a particular tooth before sensor A.
The electronics in the sensor combine the two signals and send a signal with a different pulse width. This signal is interpreted by the transmission control module for speed and direction and is transmitted through the serial data circuits to the engine control module (ECM) and the hybrid powertrain control module. The ECM, hybrid powertrain control module, and transmission control module compare the output speed sensor signal with the anti lock brake system (ABS) wheel speed sensor signal. The TCM is part of the control solenoid valve assembly and is not serviced separately. The hybrid powertrain control module is part of the drive motor generator power inverter module and is not serviced separately.
Conditions for Running the DTC
* The vehicle is moving.
* The transmission control module correlates the transmission output speed with the ABS wheel speed and motor speed to detect any failures in the transmission output speed sensor.
Conditions for Setting the DTC
The difference between transmission output speed and the calculated average of output speed from the drive motors and ABS wheel speed sensors is greater than 150 RPM. The difference between the average of wheel speed sensors and drive motors and the output speed sensor is greater than 175 RPM.
Action Taken When the DTC Sets
* P215C is a Type B DTC.
* The transmission control module calculates output speed based on the ABS wheel speed.
* The HCP calculates vehicle direction based on drive motor direction.
Conditions for Clearing the DTC
P215C is a Type B DTC.
Reference Information
Schematic Reference
Automatic Transmission Controls Schematics Electrical Diagrams
Connector End View Reference
Component Connector End Views Hybrid/EV Battery Pack X1
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 Programming and Relearning for scan tool information.
Special Tools
EL 38522 - Variable Signal Generator
Circuit/System Verification
Operate the vehicle at 16-32 km/h (10-20 mph) while observing the Transmission OSS and ABS wheel parameters on the scan tool.
The Transmission OSS and ABS wheel speed signal parameters should not vary by greater than 10 km/h (6 mph).
Circuit/System Testing
1. Verify that DTC C0035-C0050, C1207-C1210, C1221-C1228, C1232-C1235, C005A, C0245, or C122E is not set in the electronic brake control module.
• If the DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle.
2. Perform the Control Solenoid Valve and Transmission Control Module Assembly Output Shaft Speed Input Test Control Solenoid Valve and Transmission Control Module Assembly Output Shaft Speed Input Test.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Perform the Automatic Transmission Wiring Harness and Output Speed Sensor Removal 12. Automatic Transmission Wiring Harness and Output Speed Sensor Removal and Automatic Transmission Wiring Harness and Output Speed Sensor Installation 77. Automatic Transmission Wiring Harness and Output Speed Sensor Installation for OSS replacement.
* Control Module References Programming and Relearning for Control Solenoid Valve Assembly and Transmission Control Module Assembly replacement, programming, and setup.
* Perform the Reset Transmission Adapts Programming and Relearning following all transmission related repairs.