P2400moderate severityPowertrain
EVAP Leak Detection Pump Control Circuit Open
on 1996 Lexus LS 400 4.0L V8 · RWD
What this code means
Open circuit in the EVAP leak detection pump control wiring.
Symptoms
- Check engine light
- EVAP monitor incomplete
Common causes
- Broken wiring to LDP
- Failed pump motor
- Corroded connector
- Blown fuse
Diagnostic steps
- Check fuse
- Inspect LDP connector
- Measure pump resistance
- Check wiring continuity
Repair notes
Repair wiring or replace leak detection pump.
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