Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Generic PID List

Generic OBDII PID List:






NOTES:

[1], [2] - OL = Open loop have not satisfied conditions for closed loop.

[3] - Percent engine load adjusted for atmospheric pressure.

[4], [5], [6] - Individual oxygen sensor fuel trim adjustment is not supported.

[7] - Individual Oxygen Sensor (O2S) fuel trim adjustment is not supported.

X = Freeze Frame PID (refer to Freeze Frame Access for more information)

CL = Closed loop using 02S(s) as feedback for fuel control.

OL DRIVE = Open loop due to driving conditions (heavy acceleration).

OL FAULT = Open loop due to vehicle system fault.

CL FAULT = Closed loop fuel control, but fault with 02S sensor(s).

[*] = Individual oxygen sensor fuel trim adjustment is not supported.