The video focuses on the basic Pontiac 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:
Pontiac
Code:
U2171 00
Definition:
ThrottleorPedal Position SensororSwitch "D" Circuit RangeorPerformance
Description:
Monitor runs whenever following DTCs are not present: None Either of the following conditions met: Condition (a) or (b) (a) Engine switch: ON (b) Throttle actuator power: ON
Cause:
Accelerator Pedal Position (APP) sensor ECM
Failure Type:
No Sub Type Information
This sub type is used for failures where the base DTC text string provides the complete description of the failure itself (no Category and no Sub Type information used, e.g. emissions-related DTC (012700 hex): P0127 Intake Air Temperature Too High).

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