Free handbook
The full EV & Hybridfault-code handbook
50+ codes with symptoms, causes and the self-check steps our technicians actually use — plus the module voltage and resistance thresholds for 28, 34 and 40-cell packs.
- What each code really means (and which ones are false alarms)
- When a single module is enough — and when the whole pack has to go
- Model-by-model module counts
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What's inside
P0A80 · Pack replacementBlock voltages, ΔV thresholds, when to swap one module instead of the pack.
P0A7F · DeteriorationCapacity vs resistance, and why it only shows up when hot.
P0AC4 · MIL requestWhich sub-code to chase first before touching the HPCM.
P0A93 · Inverter coolingPump, hoses, fan — the three quick tests.
P3000 · Battery controlBMS vs pack vs harness, and how to tell them apart.
… and 45 moreEvery code in the same format, with the module count for the vehicle.