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| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
To improve vehicle shift feel, the transmission control module (TCM) is constantly sending the engine control module (ECM) serial data messages with information regarding its request for modifying engine speed or torque. The ECM sets this code when it detects a discrepancy in the structure of this message causing its integrity to be questioned.
An intermittent fault in the controller area network (CAN) circuits will cause DTC P150C to set.
The engine is running.
The ECM detects greater than 2 message count errors.
| • | The ECM Disables engine speed and torque requests from TCM. |
| • | DTC P150C is a type B DTC. |
DTC P150C is a type B DTC.
Data Link Communications Description and Operation
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
| • | DTC P150C is an informational DTC. Diagnose all other Engine Control DTCs prior to DTC P150C. Refer to Diagnostic Trouble Code (DTC) List - Vehicle . |
| • | If there are no other Engine Controls DTCs, diagnosis is accomplished by looking for an intermittent CAN circuit fault. Refer to Scan Tool Does Not Communicate with High Speed GMLAN Device . |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for control solenoid valve assembly replacement, set-up, and programming.
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| © Copyright Chevrolet. All rights reserved |
