Code
P1000
JAGUAR
P — Powertrain
OBD Systems Readiness Test Not Complete
Views:
UK: 32
EN: 41
RU: 45
AI status
Completed
Completed
100%
Causes
- Battery disconnected or PCM/ECM memory cleared recently
- Recent code clear or scan tool reset
- Vehicle has not completed the required drive cycle (short trips or insufficient driving conditions)
- Fuel level outside the allowed range for certain monitors (EVAP)
- Pending/active DTCs or conditions preventing monitors from running
- PCM/ECM software update or replacement requiring new drive‑cycle
Symptoms
- No specific drivability symptom tied directly to P1000
- Check Engine light may be OFF (P1000 is often informational)
- Vehicle may fail an emissions readiness check or state inspection
- Inability to complete emissions test due to incomplete monitors
What to check
- Connect a quality scan tool and read freeze frame and readiness status; note which monitors are incomplete
- Verify stored and pending codes — address any active faults first
- Check battery voltage and recent battery disconnect or PCM reset history
- Confirm fuel level (many EVAP monitors require fuel between manufacturer‑specified limits)
- Review service records for recent ECU reflash or replacement
- Inspect for EVAP leaks or other faults if EVAP monitor never sets
Signal parameters
- PCM/ECM readiness status (complete/incomplete) per monitor
- Battery voltage (V) and ignition cycle count
- Fuel level (%)
- Engine coolant temperature (°C) and intake temperature
- Oxygen sensor/heater status and lambda readings
- Misfire counters and catalyst efficiency inputs
Diagnostic algorithm
- Do not immediately clear codes. Hook up a scan tool and record which monitors are incomplete and any stored or pending DTCs.
- Address any active DTCs that would inhibit monitors (fix faults, repair sensors, leaks, catalytic issues).
- Verify fuel level is within the manufacturer‑required range for EVAP tests (typically between ~15–85% on many vehicles).
- Check battery condition and voltage; ensure no recent disconnect or reflash occurred that would reset readiness.
- Perform the manufacturer‑recommended drive cycle for Jaguar until the incomplete monitors set to ready. Use documented drive‑cycle steps when available.
- Re-scan after completing the drive cycle. If monitors remain incomplete despite correct conditions, inspect wiring, sensors, and PCM software level; check for technical service bulletins.
- If drives and repairs do not allow monitors to complete, consider professional diagnosis of PCM or intermittent faults.
Likely causes
- Vehicle was recently serviced and battery was disconnected or codes were cleared
- Owner did only short urban trips; required speeds/loads not achieved
- Fuel tank too full or too low preventing EVAP monitor
- A separate active fault (e.g., oxygen sensor, catalyst, EVAP leak) is preventing completion of specific monitors
- Scan tool cleared monitors during previous diagnosis
Fault status
Status
OBD Systems Readiness Test Not Complete — one or more emission monitors have not run since the last PCM reset. Informational status, not a specific fault.
Repair difficulty: Easy
Diagnostic time: 0.5-4 hours
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