P1653
PPowertrainFuel Pump Speed Control Circuit Fault
What does this code mean?
Severity : MediumP1653 is a manufacturer specific code. In the definition used here, it reports a fault in the fuel pump speed control circuit. The exact meaning depends on the manufacturer: on some brands this code refers to a completely different circuit. The control module varies pump speed according to engine demand.
Symptoms
- Check engine light on.
- Hard starting.
- Loss of power under heavy load.
- Noisy fuel pump or pump always running at full speed.
Possible causes
- Faulty fuel pump control module.
- Damaged pump wiring or connector.
- Poor ground at the module or pump.
- Worn fuel pump.
- Failed relay or fuse.
Diagnosis and repair
- Confirm what this code means for your make.
- Check the fuses, relays and grounds in the pump circuit.
- Inspect the connectors and wiring of the pump and its module.
- Measure fuel pressure and the pump control signal.
- Replace the faulty module or pump, then clear the code and road test.
Is this vehicle in your workshop?
Upload the ORI file: it is processed automatically in a few minutes, 24/7, and a calibration engineer takes over complex cases during opening hours.
Are you a driver?
Find a garage or a diagnostics and remapping specialist near you.
Find a pro on ChiptuneMAPCode details
Code
P1653
Category
Powertrain
Prefix
P
Standard
OBD-II / SAE J2012