P0627high severityPowertrain
Fuel Pump A Control Circuit/Open
on 1996 Lexus LS 400 4.0L V8 · RWD
What this code means
Open circuit in fuel pump control circuit.
Symptoms
- No start
- No fuel pump prime sound
- Stalling
Common causes
- Fuel pump relay failure
- Wiring open
- PCM driver failure
- Inertia switch tripped
Diagnostic steps
- Check fuel pump relay
- Test wiring
- Check inertia switch
- Test PCM output
Repair notes
Replace relay or repair wiring.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1