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Mode 01 • PID 43

OBD2 PID 0143

Absolute load value

Definition

Mode
01 (hex)
PID
43 (hex)
Data bytes
2
Formula
((A*256)+B)*100/255
Range
0 – 25700 %
Units
%

How to read PID 0143

Send mode 01 with PID 43 over OBD-II. The ECU returns 2 data byte(s), decoded with ((A*256)+B)*100/255 (A, B, C, D are the returned bytes in order). The result is “Absolute load value” in %. This is standard SAE J1979 data supported by most OBD-II scan tools and loggers.

Why it matters for tuning

Live PIDs like this are how tuners and workshops verify a remap on the road — logging RPM, load, boost, lambda and temperatures to confirm the map is safe. The desktop Softechpro Solutions software complements live logging with offline ECU editing: DPF/EGR/AdBlue/DTC off and Stage tuning with automatic checksum.

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