DTC Jeep P2111 Short Explanation
Channel: Maxidot
Date: 2020-08-05

The video focuses on the basic Jeep 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
Jeep
Code
P2111
Definition
Wheel Speed Signal, Left Rear Wheel Faulty Signal
Description
The DSA control module receives wheel speed signals from the ABS control module  The ABS control module converts the wheel sensor AC signal into a pulsed signal for the DSA control module  The signal is pulsed between approximately 0 V and battery voltage  It has a fixed pulse ratio  percentduty ≈ 50  percent where the frequency changes with the wheel speed  Depending on the current wheel speed signal,  DTCs DSA-311, DSA-312, DSA-313 or DSA-314 are stored if the vehicle speed exceeds 8 km or h and the DSA control module registers that  Wheel speed increase or reduction is too great   The speed of a wheel is less or the same as half the speed of one of the rear wheels   The speed signal varies considerably
Cause
Open-circuit in the signal cableShort-circuit to supply voltage or ground in the signal cableInterference in the wheel sensor circuitContact resistance in the terminals