DTC Chevrolet B1011-71 Short Explanation
Channel: Maxidot Chevrolet
Date: 20/06/2020

The video focuses on the basic Chevrolet specific diagnostic error code.
Contents:
0:21 Basic DTC analysis according to OBD2 protocol standard.
1:48 Insight into programming
- an explanation of what a bit is and how a byte is formed
- decoding the Error Code to the base programming
2:58 A diagnostically understandable description of the Diagnostic Trouble Code
3:05 Basic error definition
- Possible causes or errors of the car and its parts describing the mentioned error

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Make:
Chevrolet
Code:
B1011 71
Definition:
Hydraulic Pressure Test
Description:
Pressure switches are normally open (off or no pressure applied) and read high (+12 volts). When an element is applied, the corresponding pressure switch closes to ground (0.0 volts) or turns on. The controller tests the DC pressure switch when off (when the corresponding friction element is not applied) by briefly applying the DC element which will cause the corresponding pressure switch to close. The test verifies that the switch is operational and that the switch will close when the corresponding element is applied. If a switch fails to respond to two consecutive tests, the transmission system defaults to limp-in mode and illuminates the MIL.
Cause:
LOSS OF PRIME P0944 PRESENT(T16) TIPM TRANSMISSION CONTROL OUTPUT CIRCUIT OPEN(T83) DC PRESSURE SIGNAL CIRCUIT OPEN(T83) DC PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND(T83) DC PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGETRANSMISSION SOLENOID or TRS SWITCH ASSEMBLYINTERNAL TRANSMISSIONPOWERTRAIN CONTROL MODULE (PCM)
Failure Type:
Actuator Stuck
This sub type is used for failures where the control module does not detect any motion in response to energizing a motor, solenoid, relay, etc.