P10xx OBD-II Codes (P1000–P1099)

OBD-II Monitor Testing Not Complete — the readiness monitors have not finished a full drive cycle. NOT a fault (Ford/Jaguar/Lincoln/Mazda).

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific (BMW: Valvetronic Eccentric-Shaft Sensor Parity Error; GM: Camshaft Timing Over-Retarded)

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific (Chrysler/Dodge/Jeep: Power Steering Circuit Low; Ford: Engine Producing Insufficient Torque)

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Valvetronic Eccentric Shaft Sensor — Power Supply Low (BMW)

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific (Chrysler/Dodge/Jeep: ECU Start Circuit Low; VW/Audi: Fuel Pressure Control Valve Open Circuit)

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific (Honda) — documented as an oxygen-sensor / O2-heater circuit fault; not in Honda's canonical code table, so confirm for your model.

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Reductant (DEF) Injector High-Control Circuit — High Voltage (SCR / diesel emissions)

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific (Ford: HO2S Heater / O2 Slow Response B2S1; Chrysler: M/T Vehicle Configuration; Mazda SKYACTIV-D: injector quantity cyl 2)

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Change In MAP (Manifold Absolute Pressure) Reading Out Of Limits (Nissan) — a MAP code, not MAF

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

ECM/PCM Power Supply Circuit (Nissan/Infiniti — constant B+ to ECM back-up RAM); varies by make

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific code — definition not reliably documented; verify against your make's service information (documented as a fuel-mixture / lean-limit adaptation fault, not a Toyota-specific placeholder)

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information

Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information