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Jaguar P1000

OBD Systems Readiness Test Not Complete

What P1000 means on a Jaguar

On Jaguar vehicles, P1000 is logged when the ECU detects a fault in the powertrain: “OBD Systems Readiness Test Not Complete”. P1000 is a manufacturer-specific Jaguar code (the "1" after the letter marks an OEM-defined code), so its meaning applies to Jaguar and may differ on other makes.

Common causes & symptoms

Typical triggers for a powertrain code like P1000 include faulty or ageing sensors, wiring/connector faults, a clogged or removed component, or a value drifting outside the ECU's expected window. Symptoms range from a check-engine light only, to limp mode, rough running, higher consumption or failed emissions tests.

P1000 and ECU tuning

When a Jaguar has had hardware changed for off-road/motorsport use (for example a removed DPF or EGR), the related monitor must be disabled in the ECU map or the code re-appears. Softechpro Solutions performs DPF/EGR/AdBlue/DTC off and recalculates the checksum, so codes like P1000 stay cleared after the flash. Genuine faults should always be repaired, not just hidden.

Related Jaguar codes

Need to clear P1000 after a delete?

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