Jeep Diagnostic Trouble Codes
OBD2 fault codes seen on Jeep vehicles, with what each code means and the Jeep models it shows up on. Each code's page has its typical repair cost range.
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Electrical
P2100High
Throttle Actuator "A" Control Motor Circuit/Open
- Jeep Grand Cherokee • 2005
A technician case on a 2005 Grand Cherokee with the 5.7 Hemi stored P2100 and P2111 and would not start. The…
U0121High
Lost Communication With Anti-Lock Brake System (ABS) Control Module
- Jeep Grand Cherokee • 2011-2018 (WK2, 3.6L Pentastar and 5.7L HEMI)
WK2 Grand Cherokee: the code means the ABS module is not answering on the network.
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