P1502high severityPowertrain
Fuel Pump Relay Circuit Short to Ground
on 2017 Audi A4 2.0L I4 TFSI · AWD
What this code means
The ECU detected a short to ground in the fuel pump relay control circuit. The relay may be stuck in the on position or not responding to ECU commands.
Symptoms
- Check Engine Light
- Fuel pump may not shut off
- Possible no-start if circuit is open
- Intermittent fuel pump operation
Common causes
- Wiring shorted to ground
- Faulty fuel pump relay
- Damaged relay connector
- Water intrusion in relay box
- ECU driver fault
Diagnostic steps
- Test relay control circuit for ground shorts
- Inspect wiring insulation
- Check relay socket for corrosion
- Test relay coil resistance
- Check ECU driver output
Repair notes
Repair the shorted wiring or replace the fuel pump relay.
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